commit d98bdabb745a99c335660699ff0e9b014db10fbc
Author: Eclypsed <Ec1ypsed@proton.me>
Date:   Mon Oct 6 00:14:04 2025 -0400

    Initial commit

diff --git a/p1-check/Makefile b/p1-check/Makefile
new file mode 100644
index 0000000..2aef9ec
--- /dev/null
+++ b/p1-check/Makefile
@@ -0,0 +1,51 @@
+#
+# Simple Makefile
+# Mike Lam, James Madison University, August 2016
+#
+# This makefile builds a simple application that contains a main module
+# (specified by the EXE variable) and a predefined list of additional modules
+# (specified by the MODS variable). If there are any external library
+# dependencies (e.g., the math library, "-lm"), list them in the LIBS variable.
+# If there are any precompiled object files, list them in the OBJS variable.
+#
+# By default, this makefile will build the project with debugging symbols and
+# without optimization. To change this, edit or remove the "-g" and "-O0"
+# options in CFLAGS and LDFLAGS accordingly.
+#
+# By default, this makefile build the application using the GNU C compiler,
+# adhering to the C99 standard with all warnings enabled.
+
+
+# application-specific settings and run target
+
+EXE=y86
+MODS=p1-check.o
+OBJS=
+LIBS=
+
+default: $(EXE)
+
+test: $(EXE)
+	TPREFIX=tests/ make -C tests test
+
+# compiler/linker settings
+
+CC=gcc
+CFLAGS=-g -O0 -Wall --std=c99 -pedantic
+LDFLAGS=-g -O0
+
+
+# build targets
+
+$(EXE): main.o $(MODS) $(OBJS)
+	$(CC) $(LDFLAGS) -o $(EXE) $^ $(LIBS)
+
+%.o: %.c
+	$(CC) -c $(CFLAGS) $<
+
+clean:
+	rm -f $(EXE) main.o $(MODS)
+	make -C tests clean
+
+.PHONY: default clean
+
diff --git a/p1-check/elf.h b/p1-check/elf.h
new file mode 100644
index 0000000..3dc1045
--- /dev/null
+++ b/p1-check/elf.h
@@ -0,0 +1,57 @@
+#ifndef __CS261_ELF__
+#define __CS261_ELF__
+
+#include <stdio.h>
+#include <stdint.h>
+
+/*
+   Mini-ELF file format (byte 0 = first byte of the file)
+   +----------------------------------------------+
+   | header (elf_hdr_t) - 16 bytes                |
+   +----------------------------------------------+
+   | program headers (elf_phdr_t) - 20 bytes each |
+   +----------------------------------------------+
+   | program segments - variable length of bytes  |
+   +----------------------------------------------+
+   | symbol table - each entry is 4 bytes each    |
+   +----------------------------------------------+
+   | string table - variable length of strings    |
+   +----------------------------------------------+
+
+   ELF header structure:
+   +----------------------------------------------------------------------------+
+   |  0   1  |  2   3  |  4   5  |  6   7  |  8   9  | 10  11  | 12  13  14  15 |
+   | version | entry   | phdr    | numphdr | symtab  | strtab  | magic number   |
+   +----------------------------------------------------------------------------+
+
+   Sample ELF header (all entries in hex, format is little endian):
+   +----------------------------------------------------------------------------+
+   |  01  00 |  00  01 |  10  00 |  02  00 |  58  00 |  70  00 | 45  4c  46  00 |
+   | version | entry   | phdr    | numphdr | symtab  | strtab  | magic number   |
+   +----------------------------------------------------------------------------+
+
+   version = 0x0001     entry = 0x0100      phdr = 0x0010     numphdr = 0x0002
+   symtab = 0x0058      strtab = 0x0070     magic = "ELF\0"
+
+   Interpretation:
+
+   This file was created under version 1 of this format. When the program is
+   loaded into memory, the instruct at address 0x100 (256) will be executed
+   first. The first program header (which indicates segments in this file)
+   starts at offset 0x10 (16) into the file, and there are 2 program headers
+   total. The symbol table starts at offset 0x58 (88) into this file, and the
+   string table starts at offset 0x70 (112). The magic number is the string
+   "ELF\0", stored in the elf_hdr_t format as a 4-byte integer 0x00464c45
+   (4607045) and is used for checking the validity of the header.
+*/
+typedef struct __attribute__((__packed__)) elf {
+    uint16_t e_version;     /* version should be 1 */
+    uint16_t e_entry;       /* entry point of program */
+    uint16_t e_phdr_start;  /* start of program headers */
+    uint16_t e_num_phdr;    /* number of program headers */
+    uint16_t e_symtab;      /* start of symbol table */
+    uint16_t e_strtab;      /* start of string table */
+    uint32_t magic;         /* ELF */
+} elf_hdr_t;
+
+#endif
diff --git a/p1-check/main.c b/p1-check/main.c
new file mode 100644
index 0000000..db63a8a
--- /dev/null
+++ b/p1-check/main.c
@@ -0,0 +1,66 @@
+/*
+ * CS 261: Main driver
+ *
+ * Name: Nicholas Tamassia
+ */
+
+#include "p1-check.h"
+
+/*
+ * helper function for printing help text
+ */
+void usage (char **argv)
+{
+    printf("Usage: %s <option(s)> mini-elf-file\n", argv[0]);
+    printf(" Options are:\n");
+    printf("  -h      Display usage\n");
+    printf("  -H      Show the Mini-ELF header\n");
+}
+
+int main (int argc, char **argv)
+{
+    int c;
+    bool display_header = false;
+
+    while ((c = getopt(argc, argv, "hH")) != -1) {
+        switch (c) {
+            case 'h':
+                usage(argv);
+                return EXIT_SUCCESS;
+            case 'H':
+                display_header = true;
+                break;
+            default:
+                usage(argv);
+                return EXIT_FAILURE;
+        }
+    }
+
+    /* Check if file path was the last argument */
+    if (optind != argc - 1) {
+        usage(argv);
+        return EXIT_FAILURE;
+    }
+
+    elf_hdr_t header = { 0 };
+    FILE *header_file = fopen(argv[optind], "r");
+
+    /* Invalid file path or failed to read correct data from file */
+    if (!read_header(header_file, &header)) {
+        printf("Failed to read file\n");
+
+        if (header_file != NULL) {
+            fclose(header_file);
+        }
+
+        return EXIT_FAILURE;
+    }
+
+    if (display_header) {
+        dump_header(&header);
+    }
+
+    fclose(header_file);
+
+    return EXIT_SUCCESS;
+}
diff --git a/p1-check/main.o b/p1-check/main.o
new file mode 100644
index 0000000..170a2cb
Binary files /dev/null and b/p1-check/main.o differ
diff --git a/p1-check/p1-check.c b/p1-check/p1-check.c
new file mode 100644
index 0000000..2debd00
--- /dev/null
+++ b/p1-check/p1-check.c
@@ -0,0 +1,60 @@
+/*
+ * CS 261 PA1: Mini-ELF header verifier
+ *
+ * Name: Nicholas Tamassia
+ */
+
+#include "p1-check.h"
+
+/**********************************************************************
+ *                         REQUIRED FUNCTIONS
+ *********************************************************************/
+
+bool read_header (FILE *file, elf_hdr_t *hdr)
+{
+    if (!file || !hdr) {
+        return false;
+    }
+
+    return ((fread(hdr, sizeof(elf_hdr_t), 1, file) == 1) && hdr->magic == 0x00464c45);
+}
+
+/**********************************************************************
+ *                         OPTIONAL FUNCTIONS
+ *********************************************************************/
+
+void dump_header (elf_hdr_t *hdr)
+{
+    uint8_t *byte_arr = (uint8_t*)hdr;
+    size_t size = sizeof(elf_hdr_t) / sizeof(byte_arr[0]);
+
+    for (int i = 0; i < size; i++) {
+        printf("%02x", byte_arr[i]);
+
+        if (i != size - 1) {
+            printf(" ");
+        }   
+
+        if (i == size / 2 - 1) {
+            printf(" ");
+        }
+    }
+    printf("\n");
+
+    printf("Mini-ELF version %d\n", hdr->e_version);
+    printf("Entry point 0x%03x\n", hdr->e_entry);
+    printf("There are %d program headers, starting at offset %d (0x%02x)\n", hdr->e_num_phdr, hdr->e_phdr_start, hdr->e_phdr_start);
+
+    if (hdr->e_symtab != 0) {
+        printf("There is a symbol table starting at offset %d (0x%02x)\n", hdr->e_symtab, hdr->e_symtab);
+    } else {
+        printf("There is no symbol table present\n");
+    }
+
+    if (hdr->e_strtab != 0) {
+        printf("There is a string table starting at offset %d (0x%02x)\n", hdr->e_strtab, hdr->e_strtab);
+    } else {
+        printf("There is no string table present\n");
+    }
+}
+
diff --git a/p1-check/p1-check.h b/p1-check/p1-check.h
new file mode 100644
index 0000000..5ce84e9
--- /dev/null
+++ b/p1-check/p1-check.h
@@ -0,0 +1,29 @@
+#ifndef __CS261_P1__
+#define __CS261_P1__
+
+#include <getopt.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "elf.h"
+
+/**
+ * @brief Load a Mini-ELF header from an open file stream
+ *
+ * @param file File stream to use for input
+ * @param hdr Pointer to region where the Mini-ELF header should be loaded
+ * @returns True if the header was successfully loaded and verified, false otherwise
+ */
+bool read_header (FILE *file, elf_hdr_t *hdr);
+
+/**
+ * @brief Print Mini-ELF header information to standard out
+ *
+ * @param hdr Header with info to print
+ */
+void dump_header (elf_hdr_t *hdr);
+
+#endif
diff --git a/p1-check/p1-check.o b/p1-check/p1-check.o
new file mode 100644
index 0000000..1ed5a83
Binary files /dev/null and b/p1-check/p1-check.o differ
diff --git a/p1-check/tests/Makefile b/p1-check/tests/Makefile
new file mode 100644
index 0000000..d8b9da1
--- /dev/null
+++ b/p1-check/tests/Makefile
@@ -0,0 +1,81 @@
+#
+# Simple Test Makefile
+# Mike Lam, James Madison University, August 2016
+#
+# This version of the Makefile includes support for building a test suite. The
+# recommended framework is Check (http://check.sourceforge.net/). To build and
+# run the test suite, execute the "test" target. The test suite must be located
+# in a module called "testsuite". The MODS, LIBS, and OBJS variables work as
+# they do in the main Makefile.
+#
+# To change the default build target (which executes when you just type
+# "make"), change the right-hand side of the definition of the "default"
+# target.
+#
+# By default, this makefile will build the project with debugging symbols and
+# without optimization. To change this, edit or remove the "-g" and "-O0"
+# options in CFLAGS and LDFLAGS accordingly.
+#
+# By default, this makefile build the application using the GNU C compiler,
+# adhering to the C99 standard with all warnings enabled.
+
+
+# application-specific settings and run target
+
+EXE=../y86
+TEST=testsuite
+MODS=public.o
+OBJS=../p1-check.o private.o
+LIBS=
+
+UTESTOUT=utests.txt
+ITESTOUT=itests.txt
+
+default: $(TEST)
+
+$(EXE):
+	make -C ../
+
+test: utest itest
+	@echo "========================================"
+
+utest: $(EXE) $(TEST)
+	@echo "========================================"
+	@echo "             UNIT TESTS"
+	@./$(TEST) 2>/dev/null >$(UTESTOUT)
+	@cat $(UTESTOUT) | sed -n -e '/Checks/,$$p' | sed -e 's/^private.*:[EF]://g'
+
+itest: $(EXE)
+	@echo "========================================"
+	@echo "          INTEGRATION TESTS"
+	@./integration.sh | tee $(ITESTOUT)
+
+
+# compiler/linker settings
+
+CC=gcc
+CFLAGS=-g -O0 -Wall --std=c99 -pedantic
+LDFLAGS=-g -O0
+
+CFLAGS+=-I/opt/homebrew/include -Wno-gnu-zero-variadic-macro-arguments
+LDFLAGS+=-L/opt/homebrew/lib
+LIBS+=-lcheck -lm -lpthread
+
+ifeq ($(shell uname -s),Linux)
+	LIBS+=-lrt -lsubunit
+endif
+
+
+# build targets
+
+$(TEST): $(TEST).o $(MODS) $(OBJS)
+	$(CC) $(LDFLAGS) -o $(TEST) $^ $(LIBS)
+
+%.o: %.c
+	$(CC) -c $(CFLAGS) $<
+
+clean:
+	rm -rf $(TEST) $(TEST).o $(MODS) $(UTESTOUT) $(ITESTOUT) outputs valgrind
+
+.PHONY: default clean test unittest inttest
+
diff --git a/p1-check/tests/expected/A_bad_magic.txt b/p1-check/tests/expected/A_bad_magic.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p1-check/tests/expected/A_bad_magic.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p1-check/tests/expected/A_bad_magic_no_H.txt b/p1-check/tests/expected/A_bad_magic_no_H.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p1-check/tests/expected/A_bad_magic_no_H.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p1-check/tests/expected/A_invalid_multi_files.txt b/p1-check/tests/expected/A_invalid_multi_files.txt
new file mode 100644
index 0000000..bb71446
--- /dev/null
+++ b/p1-check/tests/expected/A_invalid_multi_files.txt
@@ -0,0 +1,4 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
diff --git a/p1-check/tests/expected/A_invalid_multi_params.txt b/p1-check/tests/expected/A_invalid_multi_params.txt
new file mode 100644
index 0000000..bb71446
--- /dev/null
+++ b/p1-check/tests/expected/A_invalid_multi_params.txt
@@ -0,0 +1,4 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
diff --git a/p1-check/tests/expected/A_invalid_param.txt b/p1-check/tests/expected/A_invalid_param.txt
new file mode 100644
index 0000000..bb71446
--- /dev/null
+++ b/p1-check/tests/expected/A_invalid_param.txt
@@ -0,0 +1,4 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
diff --git a/p1-check/tests/expected/A_missing_filename.txt b/p1-check/tests/expected/A_missing_filename.txt
new file mode 100644
index 0000000..bb71446
--- /dev/null
+++ b/p1-check/tests/expected/A_missing_filename.txt
@@ -0,0 +1,4 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
diff --git a/p1-check/tests/expected/A_nonexistent_file.txt b/p1-check/tests/expected/A_nonexistent_file.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p1-check/tests/expected/A_nonexistent_file.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p1-check/tests/expected/A_short_header.txt b/p1-check/tests/expected/A_short_header.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p1-check/tests/expected/A_short_header.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p1-check/tests/expected/A_short_header_no_H.txt b/p1-check/tests/expected/A_short_header_no_H.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p1-check/tests/expected/A_short_header_no_H.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p1-check/tests/expected/B_help.txt b/p1-check/tests/expected/B_help.txt
new file mode 100644
index 0000000..bb71446
--- /dev/null
+++ b/p1-check/tests/expected/B_help.txt
@@ -0,0 +1,4 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
diff --git a/p1-check/tests/expected/B_multisegment.txt b/p1-check/tests/expected/B_multisegment.txt
new file mode 100644
index 0000000..ab13265
--- /dev/null
+++ b/p1-check/tests/expected/B_multisegment.txt
@@ -0,0 +1,6 @@
+01 00 00 01 10 00 04 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 4 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
diff --git a/p1-check/tests/expected/B_simple_full.txt b/p1-check/tests/expected/B_simple_full.txt
new file mode 100644
index 0000000..2705cba
--- /dev/null
+++ b/p1-check/tests/expected/B_simple_full.txt
@@ -0,0 +1,6 @@
+01 00 00 01 10 00 02 00  58 00 70 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 2 program headers, starting at offset 16 (0x10)
+There is a symbol table starting at offset 88 (0x58)
+There is a string table starting at offset 112 (0x70)
diff --git a/p1-check/tests/expected/B_stack.txt b/p1-check/tests/expected/B_stack.txt
new file mode 100644
index 0000000..23ae50c
--- /dev/null
+++ b/p1-check/tests/expected/B_stack.txt
@@ -0,0 +1,6 @@
+01 00 00 01 10 00 05 00  f4 00 16 01 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 5 program headers, starting at offset 16 (0x10)
+There is a symbol table starting at offset 244 (0xf4)
+There is a string table starting at offset 278 (0x116)
diff --git a/p1-check/tests/expected/B_stripped.txt b/p1-check/tests/expected/B_stripped.txt
new file mode 100644
index 0000000..64103f9
--- /dev/null
+++ b/p1-check/tests/expected/B_stripped.txt
@@ -0,0 +1,6 @@
+01 00 00 01 10 00 02 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 2 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
diff --git a/p1-check/tests/expected/C_no_output.txt b/p1-check/tests/expected/C_no_output.txt
new file mode 100644
index 0000000..e69de29
diff --git a/p1-check/tests/expected/C_simple_hex-2.txt b/p1-check/tests/expected/C_simple_hex-2.txt
new file mode 100644
index 0000000..2705cba
--- /dev/null
+++ b/p1-check/tests/expected/C_simple_hex-2.txt
@@ -0,0 +1,6 @@
+01 00 00 01 10 00 02 00  58 00 70 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 2 program headers, starting at offset 16 (0x10)
+There is a symbol table starting at offset 88 (0x58)
+There is a string table starting at offset 112 (0x70)
diff --git a/p1-check/tests/expected/C_simple_hex.txt b/p1-check/tests/expected/C_simple_hex.txt
new file mode 100644
index 0000000..e4e878e
--- /dev/null
+++ b/p1-check/tests/expected/C_simple_hex.txt
@@ -0,0 +1 @@
+01 00 00 01 10 00 02 00  58 00 70 00 45 4c 46 00
diff --git a/p1-check/tests/inputs/bad-no_elf.o b/p1-check/tests/inputs/bad-no_elf.o
new file mode 100644
index 0000000..8de3a52
Binary files /dev/null and b/p1-check/tests/inputs/bad-no_elf.o differ
diff --git a/p1-check/tests/inputs/bad-short_header.o b/p1-check/tests/inputs/bad-short_header.o
new file mode 100644
index 0000000..f9d0e54
Binary files /dev/null and b/p1-check/tests/inputs/bad-short_header.o differ
diff --git a/p1-check/tests/inputs/multiseg.o b/p1-check/tests/inputs/multiseg.o
new file mode 100644
index 0000000..dbab402
Binary files /dev/null and b/p1-check/tests/inputs/multiseg.o differ
diff --git a/p1-check/tests/inputs/simple.o b/p1-check/tests/inputs/simple.o
new file mode 100644
index 0000000..e25a53b
Binary files /dev/null and b/p1-check/tests/inputs/simple.o differ
diff --git a/p1-check/tests/inputs/stack.o b/p1-check/tests/inputs/stack.o
new file mode 100644
index 0000000..2fc83fb
Binary files /dev/null and b/p1-check/tests/inputs/stack.o differ
diff --git a/p1-check/tests/inputs/stripped.o b/p1-check/tests/inputs/stripped.o
new file mode 100644
index 0000000..6f00342
Binary files /dev/null and b/p1-check/tests/inputs/stripped.o differ
diff --git a/p1-check/tests/integration.sh b/p1-check/tests/integration.sh
new file mode 100644
index 0000000..ed5a430
--- /dev/null
+++ b/p1-check/tests/integration.sh
@@ -0,0 +1,87 @@
+#!/bin/bash
+
+# extract executable name from Makefile
+EXE=$(grep "EXE=" Makefile | sed -e "s/EXE=//")
+
+# detect timeout utility (i.e., "timeout" on Linux and "gtimeout" on MacOS)
+# and set timeout interval
+TIMEOUT="timeout"
+TIMEOUT_INTERVAL="3s"
+$TIMEOUT --help &>/dev/null
+if [[ $? -ne 0 ]]; then
+    TIMEOUT="gtimeout"
+fi
+
+# Valgrind additional output flags
+VG_FLAGS="--leak-check=full --track-origins=yes"
+
+function run_test {
+
+    # parameters
+    TAG=$1
+    ARGS=$2
+    PTAG=$(printf '%-30s' "$TAG")
+
+    # file paths
+    OUTPUT=outputs/$TAG.txt
+    DIFF=outputs/$TAG.diff
+    EXPECT=expected/$TAG.txt
+    VALGRND=valgrind/$TAG.txt
+
+    # run test with timeout
+    $TIMEOUT $TIMEOUT_INTERVAL $EXE $ARGS 2>/dev/null >"$OUTPUT"
+    if [ "$?" -lt 124 ]; then
+
+        # no timeout; compare output to the expected version
+        diff -u "$OUTPUT" "$EXPECT" >"$DIFF"
+        if [ -s "$DIFF" ]; then
+
+            # try alternative solution (if it exists)
+            EXPECT=expected/$TAG-2.txt
+            if [ -e "$EXPECT" ]; then
+                diff -u "$OUTPUT" "$EXPECT" >"$DIFF"
+                if [ -s "$DIFF" ]; then
+                    echo "$PTAG FAIL (see ${TPREFIX}$DIFF for details)"
+                else
+                    echo "$PTAG pass"
+                fi
+            else
+                echo "$PTAG FAIL (see ${TPREFIX}$DIFF for details)"
+            fi
+        else
+            echo "$PTAG pass"
+        fi
+
+        # run valgrind
+        $TIMEOUT $TIMEOUT_INTERVAL valgrind $VG_FLAGS $EXE $ARGS &>$VALGRND
+    else
+        echo "$PTAG FAIL (crash or timeout)"
+    fi
+}
+
+# initialize output folders
+mkdir -p outputs
+mkdir -p valgrind
+rm -f outputs/* valgrind/*
+
+# run individual tests
+source itests.include
+
+# check for memory leaks
+LEAK=`cat valgrind/*.txt | grep 'definitely lost' | grep -v ' 0 bytes in 0 blocks'`
+if [ -z "$LEAK" ]; then
+    echo "No memory leak found."
+else
+    echo "Memory leak(s) found. See files listed below for details."
+    grep 'definitely lost' valgrind/*.txt | sed -e 's/:.*$//g' | awk "{print \"  - ${TPREFIX}\" \$0}"
+fi
+
+# check for uninitialized values
+LEAK=`cat valgrind/*.txt | grep 'uninitialised value'`
+if [ -z "$LEAK" ]; then
+    echo "No uninitialized value found."
+else
+    echo "Uninitialized value(s) found. See files listed below for details."
+    grep 'uninitialised value' valgrind/*.txt | sed -e 's/:.*$//g' | awk "{print \"  - ${TPREFIX}\" \$0}"
+fi
+
diff --git a/p1-check/tests/itests.include b/p1-check/tests/itests.include
new file mode 100644
index 0000000..5071953
--- /dev/null
+++ b/p1-check/tests/itests.include
@@ -0,0 +1,21 @@
+# list of integration tests
+#  format: run_test <TAG> <ARGS>
+#    <TAG>      used as the root for all filenames (i.e., "expected/$TAG.txt")
+#    <ARGS>     command-line arguments to test
+
+run_test    C_simple_hex            "-H inputs/simple.o"
+run_test    C_no_output             "inputs/simple.o"
+run_test    B_help                  "-h"
+run_test    B_simple_full           "-H inputs/simple.o"
+run_test    B_multisegment          "-H inputs/multiseg.o"
+run_test    B_stripped              "-H inputs/stripped.o"
+run_test    B_stack                 "-H inputs/stack.o"
+run_test    A_invalid_param         "-x"
+run_test    A_invalid_multi_files   "-H inputs/simple.o inputs/multiseg.o"
+run_test    A_invalid_multi_params  "-H inputs/simple.o -H inputs/multiseg.o"
+run_test    A_missing_filename      "-H"
+run_test    A_nonexistent_file      "-H nonexist.o"
+run_test    A_bad_magic             "-H inputs/bad-no_elf.o"
+run_test    A_short_header          "-H inputs/bad-short_header.o"
+run_test    A_bad_magic_no_H        "inputs/bad-no_elf.o"
+run_test    A_short_header_no_H     "inputs/bad-short_header.o"
diff --git a/p1-check/tests/private.o b/p1-check/tests/private.o
new file mode 100644
index 0000000..7cb1103
Binary files /dev/null and b/p1-check/tests/private.o differ
diff --git a/p1-check/tests/public.c b/p1-check/tests/public.c
new file mode 100644
index 0000000..4dfd2f2
--- /dev/null
+++ b/p1-check/tests/public.c
@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include <check.h>
+
+#include "../p1-check.h"
+
+/* read_header is declared and defined */
+START_TEST (C_sanity_read_header_is_declared)
+{
+    elf_hdr_t elf;
+    FILE *fp = fopen ("inputs/simple.o", "r");
+    ck_assert (fp != NULL);
+    bool rc = read_header (fp, &elf);
+    ck_assert (rc || !rc);
+}
+END_TEST
+
+void public_tests (Suite *s)
+{
+    TCase *tc_public = tcase_create ("Public");
+    tcase_add_test (tc_public, C_sanity_read_header_is_declared);
+    suite_add_tcase (s, tc_public);
+}
+
diff --git a/p1-check/tests/testsuite.c b/p1-check/tests/testsuite.c
new file mode 100644
index 0000000..717c193
--- /dev/null
+++ b/p1-check/tests/testsuite.c
@@ -0,0 +1,34 @@
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <assert.h>
+#include <time.h>
+
+#include <check.h>
+
+extern void public_tests (Suite *s);
+extern void private_tests (Suite *s);
+
+Suite * test_suite (void)
+{
+    Suite *s = suite_create ("Default");
+    public_tests (s);
+    private_tests (s);
+    return s;
+}
+
+void run_testsuite (void)
+{
+    Suite *s = test_suite ();
+    SRunner *sr = srunner_create (s);
+    srunner_run_all (sr, CK_NORMAL);
+    srunner_free (sr);
+}
+
+int main (void)
+{
+    srand((unsigned)time(NULL));
+    run_testsuite ();
+    return EXIT_SUCCESS;
+}
diff --git a/p1-check/y86 b/p1-check/y86
new file mode 100644
index 0000000..60ee7c4
Binary files /dev/null and b/p1-check/y86 differ
diff --git a/p2-load/Makefile b/p2-load/Makefile
new file mode 100644
index 0000000..238dba1
--- /dev/null
+++ b/p2-load/Makefile
@@ -0,0 +1,51 @@
+#
+# Simple Makefile
+# Mike Lam, James Madison University, August 2016
+#
+# This makefile builds a simple application that contains a main module
+# (specified by the EXE variable) and a predefined list of additional modules
+# (specified by the MODS variable). If there are any external library
+# dependencies (e.g., the math library, "-lm"), list them in the LIBS variable.
+# If there are any precompiled object files, list them in the OBJS variable.
+#
+# By default, this makefile will build the project with debugging symbols and
+# without optimization. To change this, edit or remove the "-g" and "-O0"
+# options in CFLAGS and LDFLAGS accordingly.
+#
+# By default, this makefile build the application using the GNU C compiler,
+# adhering to the C99 standard with all warnings enabled.
+
+
+# application-specific settings and run target
+
+EXE=y86
+MODS=p2-load.o
+OBJS=p1-check.o
+LIBS=
+
+default: $(EXE)
+
+test: $(EXE)
+	TPREFIX=tests/ make -C tests test
+
+# compiler/linker settings
+
+CC=gcc
+CFLAGS=-g -O0 -Wall --std=c99 -pedantic
+LDFLAGS=-g -O0
+
+
+# build targets
+
+$(EXE): main.o $(MODS) $(OBJS)
+	$(CC) $(LDFLAGS) -o $(EXE) $^ $(LIBS)
+
+%.o: %.c
+	$(CC) -c $(CFLAGS) $<
+
+clean:
+	rm -f $(EXE) main.o $(MODS)
+	make -C tests clean
+
+.PHONY: default clean
+
diff --git a/p2-load/elf.h b/p2-load/elf.h
new file mode 100644
index 0000000..92d56bf
--- /dev/null
+++ b/p2-load/elf.h
@@ -0,0 +1,98 @@
+#ifndef __CS261_ELF__
+#define __CS261_ELF__
+
+#include <stdio.h>
+#include <stdint.h>
+
+#include "y86.h"
+
+/*
+   Mini-ELF file format (byte 0 = first byte of the file)
+   +----------------------------------------------+
+   | header (elf_hdr_t) - 16 bytes                |
+   +----------------------------------------------+
+   | program headers (elf_phdr_t) - 20 bytes each |
+   +----------------------------------------------+
+   | program segments - variable length of bytes  |
+   +----------------------------------------------+
+   | symbol table - each entry is 4 bytes each    |
+   +----------------------------------------------+
+   | string table - variable length of strings    |
+   +----------------------------------------------+
+
+   ELF header structure:
+   +----------------------------------------------------------------------------+
+   |  0   1  |  2   3  |  4   5  |  6   7  |  8   9  | 10  11  | 12  13  14  15 |
+   | version | entry   | phdr    | numphdr | symtab  | strtab  | magic number   |
+   +----------------------------------------------------------------------------+
+
+   Sample ELF header (all entries in hex, format is little endian):
+   +----------------------------------------------------------------------------+
+   |  01  00 |  00  01 |  10  00 |  05  00 |  ac  00 |  c2  00 | 45  4c  46  00 |
+   | version | entry   | phdr    | numphdr | symtab  | strtab  | magic number   |
+   +----------------------------------------------------------------------------+
+
+   version = 0x0001     entry = 0x0100      phdr = 0x0010     numphdr = 0x0005
+   symtab = 0x00ac      strtab = 0x00c2     magic = "ELF\0"
+
+   Interpretation:
+   This file was created under version 1 of this format. When the program is
+   loaded into memory, the instruct at address 0x100 (256) will be executed
+   first. The first program header (which indicates segments in this file)
+   starts at offset 0x10 (16) into the file, and there are 5 program headers
+   total. The symbol table starts at offset 0xac (172) into this file, and the
+   string table starts at offset 0xc2 (194). The magic number is the string
+   "ELF\0" and is for error checking.
+*/
+typedef struct __attribute__((__packed__)) elf {
+    uint16_t e_version;     /* version should be 1 */
+    uint16_t e_entry;       /* entry point of program */
+    uint16_t e_phdr_start;  /* start of program headers */
+    uint16_t e_num_phdr;    /* number of program headers */
+    uint16_t e_symtab;      /* start of symbol table */
+    uint16_t e_strtab;      /* start of string table */
+    uint32_t magic;         /* ELF */
+} elf_hdr_t;
+
+typedef enum {
+    DATA, CODE, STACK, HEAP, UNKNOWN
+} elf_segtype_t;
+
+/*
+   ELF program header structure (describing segments):
+   +-----------------------------------------------------------------------+
+   |  0  1  2  3 |  4  5  6  7 |  8  9 10 11 | 12 13 | 14 15 | 16 17 18 19 |
+   | offset      | size        | virt addr   | type  | flags | magic number|
+   +-----------------------------------------------------------------------+
+
+   Flags store segment permissions as RWX (read/write/execute) in binary.
+     Examples:      100 (binary) = 4 (decimal/hex) = read-only    (R  )
+                    101 (binary) = 5 (decimal/hex) = read-execute (R X)
+                    110 (binary) = 6 (decimal/hex) = read-write   (RW )
+
+   Sample ELF program header (all entries in hex, format is little endian):
+   +-----------------------------------------------------------------------+
+   | 74 00 00 00 | 12 00 00 00 | 00 01 00 00 | 01 00 | 05 00 | ef be ad de |
+   | offset      | size        | virt addr   | type  | flags | magic number|
+   +-----------------------------------------------------------------------+
+
+   offset = 0x00000074    size = 0x00000012           virt addr = 0x00000100
+   type = 0x0001 (CODE)   flags = 0x0005 (RX)         magic = 0xDEADBEEF
+
+   Interpretation:
+   The segment starts at offset 0x74 (116) in the file, and it is 0x12 (18)
+   bytes in size. It will be loaded into memory address 0x100 (256). Since it
+   is a CODE segment, it needs to have read-execute (RX) permissions attached.
+   The magic number is the value 0xDEADBEEF and is for error checking.
+*/
+typedef struct __attribute__((__packed__)) elf_phdr {
+    uint32_t p_offset;      /* beginning of the segment in the file (in bytes) */
+    uint32_t p_size;        /* number of bytes in the segment */
+    uint32_t p_vaddr;       /* intended virtual address of the beginning of
+                               the segment in a running program's memory */
+    uint16_t p_type;        /* segment type (e.g., code, data, etc.) */
+    uint16_t p_flags;       /* permissions flags */
+    uint32_t magic;         /* DEADBEEF */
+} elf_phdr_t;
+
+#endif
diff --git a/p2-load/main.c b/p2-load/main.c
new file mode 100644
index 0000000..cf671d7
--- /dev/null
+++ b/p2-load/main.c
@@ -0,0 +1,134 @@
+/*
+ * CS 261: Main driver
+ *
+ * Name: Nicholas Tamassia
+ * This code was developed in compliance with the JMU Honor Code. 
+ */
+
+#include "p1-check.h"
+#include "p2-load.h"
+
+/* Helper function for printing help text */
+void usage (char **argv)
+{
+    printf("Usage: %s <option(s)> mini-elf-file\n", argv[0]);
+    printf(" Options are:\n");
+    printf("  -h      Display usage\n");
+    printf("  -H      Show the Mini-ELF header\n");
+    printf("  -a      Show all with brief memory\n");
+    printf("  -f      Show all with full memory\n");
+    printf("  -s      Show the program headers\n");
+    printf("  -m      Show the memory contents (brief)\n");
+    printf("  -M      Show the memory contents (full)\n");
+}
+
+void exit_file_error(FILE* file) {
+    if (file) {
+        fclose(file);
+    }
+
+    printf("Failed to read file\n");
+    exit(EXIT_FAILURE);
+}
+
+int main (int argc, char **argv)
+{
+    int c;
+    bool show_elf_header = false;
+    bool show_program_header = false;
+    bool show_memory_brief = false;
+    bool show_memory_full = false;
+
+    while ((c = getopt(argc, argv, "hHafsmM")) != -1) {
+        switch (c) {
+            case 'h':
+                usage(argv);
+                return EXIT_SUCCESS;
+            case 'H':
+                show_elf_header = true;
+                break;
+            case 'a':
+                show_elf_header = true;
+                show_program_header = true;
+                show_memory_brief = true;
+                break;
+            case 'f':
+                show_elf_header = true;
+                show_program_header = true;
+                show_memory_full = true;
+                break;
+            case 's':
+                show_program_header = true;
+                break;
+            case 'm':
+                show_memory_brief = true;
+                break;
+            case 'M':
+                show_memory_full = true;
+                break;
+            default:
+                usage(argv);
+                return EXIT_FAILURE;
+        }
+    }
+
+    bool invalid_arguments = optind != argc - 1; /* File path was not the last argument */
+    bool memory_flag_conflict = show_memory_brief && show_memory_full; /* Attempted to ask for brief and full memory at same time */
+
+    if (invalid_arguments || memory_flag_conflict) {
+        usage(argv);
+        return EXIT_FAILURE;
+    }
+
+    elf_hdr_t header = { 0 };
+    FILE *header_file = fopen(argv[optind], "r");
+
+    /* Read contents of header_file into header */
+    if (!read_header(header_file, &header)) {
+        exit_file_error(header_file);
+    }
+
+    if (show_elf_header) {
+        dump_header(&header);
+    }
+
+    elf_phdr_t phdrs[header.e_num_phdr];
+    memset(phdrs, 0, sizeof(phdrs));
+
+    /* Read program headers into phdrs array */
+    for (int i = 0; i < header.e_num_phdr; i++) {
+        if (!read_phdr(header_file, header.e_phdr_start + i * sizeof(elf_phdr_t), &phdrs[i])) {
+            exit_file_error(header_file);
+        }
+    }
+
+    if (show_program_header) {
+        dump_phdrs(header.e_num_phdr, phdrs);
+    }
+
+    byte_t memory[MEMSIZE];
+    memset(memory, 0, MEMSIZE);
+
+    /* Read memory segments into memory array */
+    for (int i = 0; i < header.e_num_phdr; i++) {
+        if (!load_segment(header_file, memory, &phdrs[i])) {
+            exit_file_error(header_file);
+        }
+    }
+
+    if (show_memory_brief) {
+        for (int i = 0; i < header.e_num_phdr; i++) {
+            uint32_t start = phdrs[i].p_vaddr;
+            uint32_t end = start + phdrs[i].p_size;
+
+            dump_memory(memory, start, end);
+        }
+    } else if (show_memory_full) {
+        dump_memory(memory, 0, MEMSIZE);
+    }
+
+    fclose(header_file);
+
+    return EXIT_SUCCESS;
+}
+
diff --git a/p2-load/main.o b/p2-load/main.o
new file mode 100644
index 0000000..43847a2
Binary files /dev/null and b/p2-load/main.o differ
diff --git a/p2-load/p1-check.h b/p2-load/p1-check.h
new file mode 100644
index 0000000..5ce84e9
--- /dev/null
+++ b/p2-load/p1-check.h
@@ -0,0 +1,29 @@
+#ifndef __CS261_P1__
+#define __CS261_P1__
+
+#include <getopt.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "elf.h"
+
+/**
+ * @brief Load a Mini-ELF header from an open file stream
+ *
+ * @param file File stream to use for input
+ * @param hdr Pointer to region where the Mini-ELF header should be loaded
+ * @returns True if the header was successfully loaded and verified, false otherwise
+ */
+bool read_header (FILE *file, elf_hdr_t *hdr);
+
+/**
+ * @brief Print Mini-ELF header information to standard out
+ *
+ * @param hdr Header with info to print
+ */
+void dump_header (elf_hdr_t *hdr);
+
+#endif
diff --git a/p2-load/p1-check.o b/p2-load/p1-check.o
new file mode 100644
index 0000000..a943a48
Binary files /dev/null and b/p2-load/p1-check.o differ
diff --git a/p2-load/p2-load.c b/p2-load/p2-load.c
new file mode 100644
index 0000000..8beb505
--- /dev/null
+++ b/p2-load/p2-load.c
@@ -0,0 +1,96 @@
+/*
+ * CS 261 PA2: Mini-ELF loader
+ *
+ * Name: Nicholas Tamassia
+ * This code was developed in compliance with the JMU Honor Code.
+ */
+
+#include "p2-load.h"
+
+/**********************************************************************
+ *                         REQUIRED FUNCTIONS
+ *********************************************************************/
+
+bool read_phdr (FILE *file, uint16_t offset, elf_phdr_t *phdr)
+{
+    if (!file || !phdr || fseek(file, offset, SEEK_SET) != 0) {
+        return false;
+    }
+
+    return ((fread(phdr, sizeof(elf_phdr_t), 1, file) == 1) && phdr->magic == 0xDEADBEEF);
+}
+
+bool load_segment (FILE *file, byte_t *memory, elf_phdr_t *phdr)
+{
+    if (!file || !memory || !phdr) {
+        return false;
+    }
+
+    if (phdr->p_vaddr + phdr->p_size > MEMSIZE || fseek(file, phdr->p_offset, SEEK_SET) != 0) {
+        return false;
+    }
+
+    if ((fread(memory + phdr->p_vaddr, phdr->p_size, 1, file) != 1) && phdr->p_size != 0) {
+        return false;
+    }
+
+    return true;
+}
+
+/**********************************************************************
+ *                         OPTIONAL FUNCTIONS
+ *********************************************************************/
+
+void dump_phdrs (uint16_t numphdrs, elf_phdr_t *phdrs)
+{
+    printf(" Segment   Offset    Size      VirtAddr  Type      Flags\n");
+
+    for (int i = 0; i < numphdrs; i++) {
+        elf_phdr_t phdr = phdrs[i];
+        char flags[4] = "RWX";
+
+        for (int j = 2; j >= 0; j--) {
+            if ((phdr.p_flags & (1 << (2 - j))) == 0) {
+                flags[j] = ' ';
+            }
+        }
+
+        printf("  %02d       0x%04x    0x%04x    0x%04x    %-10s%s\n", i, phdr.p_offset, phdr.p_size, phdr.p_vaddr, p_type_mapper(phdr.p_type), flags);
+    }
+}
+
+char* p_type_mapper(uint16_t type) {
+    switch (type) {
+        case 0: return "DATA"; break;
+        case 1: return "CODE"; break;
+        case 2: return "STACK"; break;
+        case 3: return "HEAP"; break;
+        default: return "UNKNOWN"; break;
+    }
+}
+
+void dump_memory (byte_t *memory, uint16_t start, uint16_t end)
+{
+    printf("Contents of memory from %04x to %04x:\n", start, end);
+
+    int aligned_start = start - (start % 16);
+
+    for (int i = aligned_start; i < end; i++) {
+        if (i % 16 == 0) {
+            printf("  %04x ", i);
+        }
+
+        if (i >= start) {
+            printf(" %02x", memory[i]);
+        } else {
+            printf("   ");
+        }
+        
+        if (i % 16 == 15 || i == end - 1) {
+            printf("\n");
+        } else if (i % 16 == 7) {
+            printf(" ");
+        }
+    }
+}
+
diff --git a/p2-load/p2-load.h b/p2-load/p2-load.h
new file mode 100644
index 0000000..07334bd
--- /dev/null
+++ b/p2-load/p2-load.h
@@ -0,0 +1,54 @@
+#ifndef __CS261_P2__
+#define __CS261_P2__
+
+#include <getopt.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "elf.h"
+#include "y86.h"
+
+/**
+ * @brief Load a Mini-ELF program header from an open file stream
+ *
+ * @param file File stream to use for input
+ * @param offset Byte offset in file where the program header is located
+ * @param phdr Pointer to memory where the Mini-ELF program header should be loaded
+ * @returns True if the header was successfully loaded and verified, false otherwise
+ */
+bool read_phdr (FILE *file, uint16_t offset, elf_phdr_t *phdr);
+
+/**
+ * @brief Load a Mini-ELF program segment from an open file stream
+ *
+ * @param file File stream to use for input
+ * @param memory Pointer to the beginning of the Y86 address space into which
+ * the segment should be loaded
+ * @param phdr Pointer to the program header for the segment that should be loaded
+ * @returns True if the segment was successfully loaded, false otherwise
+ */
+bool load_segment (FILE *file, byte_t *memory, elf_phdr_t *phdr);
+
+/**
+ * @brief Print Mini-ELF program header information to standard out
+ *
+ * @param numphdrs Number of program headers to print
+ * @param phdrs Pointer to array of program headers with info to print
+ */
+void dump_phdrs (uint16_t numphdrs, elf_phdr_t *phdrs);
+
+char* p_type_mapper(uint16_t type);
+
+/**
+ * @brief Print a portion of a Y86 address space
+ *
+ * @param memory Pointer to the beginning of the Y86 address space
+ * @param start Byte offset where printing should begin
+ * @param end Byte offset where printing should end
+ */
+void dump_memory (byte_t *memory, uint16_t start, uint16_t end);
+
+#endif
diff --git a/p2-load/p2-load.o b/p2-load/p2-load.o
new file mode 100644
index 0000000..2d96423
Binary files /dev/null and b/p2-load/p2-load.o differ
diff --git a/p2-load/tests/Makefile b/p2-load/tests/Makefile
new file mode 100644
index 0000000..c38cb76
--- /dev/null
+++ b/p2-load/tests/Makefile
@@ -0,0 +1,81 @@
+#
+# Simple Test Makefile
+# Mike Lam, James Madison University, August 2016
+#
+# This version of the Makefile includes support for building a test suite. The
+# recommended framework is Check (http://check.sourceforge.net/). To build and
+# run the test suite, execute the "test" target. The test suite must be located
+# in a module called "testsuite". The MODS, LIBS, and OBJS variables work as
+# they do in the main Makefile.
+#
+# To change the default build target (which executes when you just type
+# "make"), change the right-hand side of the definition of the "default"
+# target.
+#
+# By default, this makefile will build the project with debugging symbols and
+# without optimization. To change this, edit or remove the "-g" and "-O0"
+# options in CFLAGS and LDFLAGS accordingly.
+#
+# By default, this makefile build the application using the GNU C compiler,
+# adhering to the C99 standard with all warnings enabled.
+
+
+# application-specific settings and run target
+
+EXE=../y86
+TEST=testsuite
+MODS=public.o
+OBJS=../p1-check.o ../p2-load.o private.o
+LIBS=
+
+UTESTOUT=utests.txt
+ITESTOUT=itests.txt
+
+default: $(TEST)
+
+$(EXE):
+	make -C ../
+
+test: utest itest
+	@echo "========================================"
+
+utest: $(EXE) $(TEST)
+	@echo "========================================"
+	@echo "             UNIT TESTS"
+	@./$(TEST) 2>/dev/null >$(UTESTOUT)
+	@cat $(UTESTOUT) | sed -n -e '/Checks/,$$p' | sed -e 's/^private.*:[EF]://g'
+
+itest: $(EXE)
+	@echo "========================================"
+	@echo "          INTEGRATION TESTS"
+	@./integration.sh | tee $(ITESTOUT)
+
+
+# compiler/linker settings
+
+CC=gcc
+CFLAGS=-g -O0 -Wall --std=c99 -pedantic
+LDFLAGS=-g -O0
+
+CFLAGS+=-I/opt/homebrew/include -Wno-gnu-zero-variadic-macro-arguments
+LDFLAGS+=-L/opt/homebrew/lib
+LIBS+=-lcheck -lm -lpthread
+
+ifeq ($(shell uname -s),Linux)
+	LIBS+=-lrt -lsubunit
+endif
+
+
+# build targets
+
+$(TEST): $(TEST).o $(MODS) $(OBJS)
+	$(CC) $(LDFLAGS) -o $(TEST) $^ $(LIBS)
+
+%.o: %.c
+	$(CC) -c $(CFLAGS) $<
+
+clean:
+	rm -rf $(TEST) $(TEST).o $(MODS) $(UTESTOUT) $(ITESTOUT) outputs valgrind
+
+.PHONY: default clean test unittest inttest
+
diff --git a/p2-load/tests/expected/A_bad_phdr_magic.txt b/p2-load/tests/expected/A_bad_phdr_magic.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p2-load/tests/expected/A_bad_phdr_magic.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p2-load/tests/expected/A_bad_phdr_short.txt b/p2-load/tests/expected/A_bad_phdr_short.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p2-load/tests/expected/A_bad_phdr_short.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p2-load/tests/expected/A_bad_phdr_vaddr.txt b/p2-load/tests/expected/A_bad_phdr_vaddr.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p2-load/tests/expected/A_bad_phdr_vaddr.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p2-load/tests/expected/A_brief_full.txt b/p2-load/tests/expected/A_brief_full.txt
new file mode 100644
index 0000000..d7838bc
--- /dev/null
+++ b/p2-load/tests/expected/A_brief_full.txt
@@ -0,0 +1,9 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
diff --git a/p2-load/tests/expected/A_extra_params.txt b/p2-load/tests/expected/A_extra_params.txt
new file mode 100644
index 0000000..d7838bc
--- /dev/null
+++ b/p2-load/tests/expected/A_extra_params.txt
@@ -0,0 +1,9 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
diff --git a/p2-load/tests/expected/A_full_conflict.txt b/p2-load/tests/expected/A_full_conflict.txt
new file mode 100644
index 0000000..d7838bc
--- /dev/null
+++ b/p2-load/tests/expected/A_full_conflict.txt
@@ -0,0 +1,9 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
diff --git a/p2-load/tests/expected/A_mem_conflict.txt b/p2-load/tests/expected/A_mem_conflict.txt
new file mode 100644
index 0000000..d7838bc
--- /dev/null
+++ b/p2-load/tests/expected/A_mem_conflict.txt
@@ -0,0 +1,9 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
diff --git a/p2-load/tests/expected/A_missing_file.txt b/p2-load/tests/expected/A_missing_file.txt
new file mode 100644
index 0000000..d7838bc
--- /dev/null
+++ b/p2-load/tests/expected/A_missing_file.txt
@@ -0,0 +1,9 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
diff --git a/p2-load/tests/expected/A_no_flags.txt b/p2-load/tests/expected/A_no_flags.txt
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/expected/A_no_flags_bad.txt b/p2-load/tests/expected/A_no_flags_bad.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p2-load/tests/expected/A_no_flags_bad.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p2-load/tests/expected/A_unaligned1.txt b/p2-load/tests/expected/A_unaligned1.txt
new file mode 100644
index 0000000..e403f1b
--- /dev/null
+++ b/p2-load/tests/expected/A_unaligned1.txt
@@ -0,0 +1,17 @@
+01 00 18 01 10 00 03 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x118
+There are 3 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x004c    0x0009    0x0000    CODE      R X
+  01       0x0055    0x0002    0x0118    CODE      R X
+  02       0x0057    0x0008    0x013a    DATA      RW 
+Contents of memory from 0000 to 0009:
+  0000  70 18 01 00 00 00 00 00  00
+Contents of memory from 0118 to 011a:
+  0110                           10 00
+Contents of memory from 013a to 0142:
+  0130                                 39 30 00 00 00 00
+  0140  00 00
diff --git a/p2-load/tests/expected/A_unaligned2.txt b/p2-load/tests/expected/A_unaligned2.txt
new file mode 100644
index 0000000..1a02a1b
--- /dev/null
+++ b/p2-load/tests/expected/A_unaligned2.txt
@@ -0,0 +1,18 @@
+01 00 55 05 10 00 03 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x555
+There are 3 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x004c    0x0009    0x0000    CODE      R X
+  01       0x0055    0x001f    0x0555    CODE      R X
+  02       0x0074    0x0008    0x0987    DATA      RW 
+Contents of memory from 0000 to 0009:
+  0000  70 55 05 00 00 00 00 00  00
+Contents of memory from 0555 to 0574:
+  0550                 30 f0 4d  01 00 00 00 00 00 00 30
+  0560  f3 de 00 00 00 00 00 00  00 30 f1 6f 00 00 00 00
+  0570  00 00 00 00
+Contents of memory from 0987 to 098f:
+  0980                       dd  cc bb aa 00 00 00 00
diff --git a/p2-load/tests/expected/B_all_flags.txt b/p2-load/tests/expected/B_all_flags.txt
new file mode 100644
index 0000000..d6db550
--- /dev/null
+++ b/p2-load/tests/expected/B_all_flags.txt
@@ -0,0 +1,14 @@
+01 00 00 01 10 00 02 00  58 00 70 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 2 program headers, starting at offset 16 (0x10)
+There is a symbol table starting at offset 88 (0x58)
+There is a string table starting at offset 112 (0x70)
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0038    0x0015    0x0100    CODE      R X
+  01       0x004d    0x000b    0x0200    DATA      RW 
+Contents of memory from 0100 to 0115:
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00
+Contents of memory from 0200 to 020b:
+  0200  aa bb cc dd 00 00 00 dd  00 00 00
diff --git a/p2-load/tests/expected/B_repeated.txt b/p2-load/tests/expected/B_repeated.txt
new file mode 100644
index 0000000..042929e
--- /dev/null
+++ b/p2-load/tests/expected/B_repeated.txt
@@ -0,0 +1,3 @@
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0038    0x0015    0x0100    CODE      R X
+  01       0x004d    0x000b    0x0200    DATA      RW 
diff --git a/p2-load/tests/expected/B_stack.txt b/p2-load/tests/expected/B_stack.txt
new file mode 100644
index 0000000..ddeb8f2
--- /dev/null
+++ b/p2-load/tests/expected/B_stack.txt
@@ -0,0 +1,27 @@
+01 00 00 01 10 00 05 00  f4 00 16 01 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 5 program headers, starting at offset 16 (0x10)
+There is a symbol table starting at offset 244 (0xf4)
+There is a string table starting at offset 278 (0x116)
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0074    0x001e    0x0100    CODE      R X
+  01       0x0092    0x0032    0x0200    CODE      R X
+  02       0x00c4    0x000d    0x0300    DATA      RW 
+  03       0x00d1    0x0023    0x0400    DATA      R  
+  04       0x00f4    0x0000    0x0f00    STACK     RW 
+Contents of memory from 0100 to 011e:
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f5 00 0f 00 00
+  0110  00 00 00 00 80 00 02 00  00 00 00 00 00 00
+Contents of memory from 0200 to 0232:
+  0200  30 f0 02 03 00 00 00 00  00 00 50 30 00 00 00 00
+  0210  00 00 00 00 20 31 a0 0f  b0 3f c0 c1 c5 40 13 fd
+  0220  ff ff ff 00 00 00 00 60  31 70 1d 02 00 00 00 00
+  0230  00 00
+Contents of memory from 0300 to 030d:
+  0300  bb aa 0f 0a 00 00 00 00  00 00 00 dd cc
+Contents of memory from 0400 to 0423:
+  0400  68 65 6c 6c 6f 20 77 6f  72 6c 64 00 67 6f 6f 64
+  0410  00 79 61 64 64 61 20 79  61 64 64 61 20 79 61 64
+  0420  64 61 00
+Contents of memory from 0f00 to 0f00:
diff --git a/p2-load/tests/expected/B_stripped_m.txt b/p2-load/tests/expected/B_stripped_m.txt
new file mode 100644
index 0000000..07aaa20
--- /dev/null
+++ b/p2-load/tests/expected/B_stripped_m.txt
@@ -0,0 +1,5 @@
+Contents of memory from 0100 to 0115:
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00
+Contents of memory from 0200 to 020b:
+  0200  aa bb cc dd 00 00 00 dd  00 00 00
diff --git a/p2-load/tests/expected/B_stripped_mH.txt b/p2-load/tests/expected/B_stripped_mH.txt
new file mode 100644
index 0000000..aa947f5
--- /dev/null
+++ b/p2-load/tests/expected/B_stripped_mH.txt
@@ -0,0 +1,11 @@
+01 00 00 01 10 00 02 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 2 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+Contents of memory from 0100 to 0115:
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00
+Contents of memory from 0200 to 020b:
+  0200  aa bb cc dd 00 00 00 dd  00 00 00
diff --git a/p2-load/tests/expected/C_help.txt b/p2-load/tests/expected/C_help.txt
new file mode 100644
index 0000000..d7838bc
--- /dev/null
+++ b/p2-load/tests/expected/C_help.txt
@@ -0,0 +1,9 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
diff --git a/p2-load/tests/expected/C_more_flags_s.txt b/p2-load/tests/expected/C_more_flags_s.txt
new file mode 100644
index 0000000..9003a84
--- /dev/null
+++ b/p2-load/tests/expected/C_more_flags_s.txt
@@ -0,0 +1,5 @@
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0060    0x0015    0x0100    DATA       W 
+  01       0x0075    0x000b    0x0200    DATA        X
+  02       0x0080    0x0015    0x0300    DATA       WX
+  03       0x0090    0x000b    0x0200    DATA      RWX
diff --git a/p2-load/tests/expected/C_multiseg_f.txt b/p2-load/tests/expected/C_multiseg_f.txt
new file mode 100644
index 0000000..da6ea09
--- /dev/null
+++ b/p2-load/tests/expected/C_multiseg_f.txt
@@ -0,0 +1,268 @@
+01 00 00 01 10 00 04 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 4 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0060    0x0015    0x0100    CODE      R X
+  01       0x0075    0x000b    0x0200    DATA      RW 
+  02       0x0080    0x0015    0x0300    CODE      R X
+  03       0x0090    0x000b    0x0200    DATA      RW 
+Contents of memory from 0000 to 1000:
+  0000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  70 08 01 00 00 aa bb cc  dd 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0310  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p2-load/tests/expected/C_multiseg_fsHM.txt b/p2-load/tests/expected/C_multiseg_fsHM.txt
new file mode 100644
index 0000000..da6ea09
--- /dev/null
+++ b/p2-load/tests/expected/C_multiseg_fsHM.txt
@@ -0,0 +1,268 @@
+01 00 00 01 10 00 04 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 4 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0060    0x0015    0x0100    CODE      R X
+  01       0x0075    0x000b    0x0200    DATA      RW 
+  02       0x0080    0x0015    0x0300    CODE      R X
+  03       0x0090    0x000b    0x0200    DATA      RW 
+Contents of memory from 0000 to 1000:
+  0000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  70 08 01 00 00 aa bb cc  dd 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0310  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p2-load/tests/expected/C_multiseg_sH.txt b/p2-load/tests/expected/C_multiseg_sH.txt
new file mode 100644
index 0000000..1d3a3a5
--- /dev/null
+++ b/p2-load/tests/expected/C_multiseg_sH.txt
@@ -0,0 +1,11 @@
+01 00 00 01 10 00 04 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 4 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0060    0x0015    0x0100    CODE      R X
+  01       0x0075    0x000b    0x0200    DATA      RW 
+  02       0x0080    0x0015    0x0300    CODE      R X
+  03       0x0090    0x000b    0x0200    DATA      RW 
diff --git a/p2-load/tests/expected/C_simple_H.txt b/p2-load/tests/expected/C_simple_H.txt
new file mode 100644
index 0000000..2705cba
--- /dev/null
+++ b/p2-load/tests/expected/C_simple_H.txt
@@ -0,0 +1,6 @@
+01 00 00 01 10 00 02 00  58 00 70 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 2 program headers, starting at offset 16 (0x10)
+There is a symbol table starting at offset 88 (0x58)
+There is a string table starting at offset 112 (0x70)
diff --git a/p2-load/tests/expected/C_simple_s.txt b/p2-load/tests/expected/C_simple_s.txt
new file mode 100644
index 0000000..042929e
--- /dev/null
+++ b/p2-load/tests/expected/C_simple_s.txt
@@ -0,0 +1,3 @@
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0038    0x0015    0x0100    CODE      R X
+  01       0x004d    0x000b    0x0200    DATA      RW 
diff --git a/p2-load/tests/expected/C_stripped_sM.txt b/p2-load/tests/expected/C_stripped_sM.txt
new file mode 100644
index 0000000..294e8db
--- /dev/null
+++ b/p2-load/tests/expected/C_stripped_sM.txt
@@ -0,0 +1,260 @@
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0038    0x0015    0x0100    CODE      R X
+  01       0x004d    0x000b    0x0200    DATA      RW 
+Contents of memory from 0000 to 1000:
+  0000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  aa bb cc dd 00 00 00 dd  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p2-load/tests/inputs/bad-phdr_magic.o b/p2-load/tests/inputs/bad-phdr_magic.o
new file mode 100644
index 0000000..ab738db
Binary files /dev/null and b/p2-load/tests/inputs/bad-phdr_magic.o differ
diff --git a/p2-load/tests/inputs/bad-phdr_short.o b/p2-load/tests/inputs/bad-phdr_short.o
new file mode 100644
index 0000000..f22f9bc
Binary files /dev/null and b/p2-load/tests/inputs/bad-phdr_short.o differ
diff --git a/p2-load/tests/inputs/bad-phdr_vaddr.o b/p2-load/tests/inputs/bad-phdr_vaddr.o
new file mode 100644
index 0000000..bd44c48
Binary files /dev/null and b/p2-load/tests/inputs/bad-phdr_vaddr.o differ
diff --git a/p2-load/tests/inputs/moreflags.o b/p2-load/tests/inputs/moreflags.o
new file mode 100644
index 0000000..10d82ad
Binary files /dev/null and b/p2-load/tests/inputs/moreflags.o differ
diff --git a/p2-load/tests/inputs/multiseg.o b/p2-load/tests/inputs/multiseg.o
new file mode 100644
index 0000000..dbab402
Binary files /dev/null and b/p2-load/tests/inputs/multiseg.o differ
diff --git a/p2-load/tests/inputs/simple.o b/p2-load/tests/inputs/simple.o
new file mode 100644
index 0000000..e25a53b
Binary files /dev/null and b/p2-load/tests/inputs/simple.o differ
diff --git a/p2-load/tests/inputs/stack.o b/p2-load/tests/inputs/stack.o
new file mode 100644
index 0000000..2fc83fb
Binary files /dev/null and b/p2-load/tests/inputs/stack.o differ
diff --git a/p2-load/tests/inputs/stripped.o b/p2-load/tests/inputs/stripped.o
new file mode 100644
index 0000000..6f00342
Binary files /dev/null and b/p2-load/tests/inputs/stripped.o differ
diff --git a/p2-load/tests/inputs/unaligned.o b/p2-load/tests/inputs/unaligned.o
new file mode 100644
index 0000000..1c4f863
Binary files /dev/null and b/p2-load/tests/inputs/unaligned.o differ
diff --git a/p2-load/tests/inputs/unaligned2.o b/p2-load/tests/inputs/unaligned2.o
new file mode 100644
index 0000000..2d03189
Binary files /dev/null and b/p2-load/tests/inputs/unaligned2.o differ
diff --git a/p2-load/tests/integration.sh b/p2-load/tests/integration.sh
new file mode 100644
index 0000000..ed5a430
--- /dev/null
+++ b/p2-load/tests/integration.sh
@@ -0,0 +1,87 @@
+#!/bin/bash
+
+# extract executable name from Makefile
+EXE=$(grep "EXE=" Makefile | sed -e "s/EXE=//")
+
+# detect timeout utility (i.e., "timeout" on Linux and "gtimeout" on MacOS)
+# and set timeout interval
+TIMEOUT="timeout"
+TIMEOUT_INTERVAL="3s"
+$TIMEOUT --help &>/dev/null
+if [[ $? -ne 0 ]]; then
+    TIMEOUT="gtimeout"
+fi
+
+# Valgrind additional output flags
+VG_FLAGS="--leak-check=full --track-origins=yes"
+
+function run_test {
+
+    # parameters
+    TAG=$1
+    ARGS=$2
+    PTAG=$(printf '%-30s' "$TAG")
+
+    # file paths
+    OUTPUT=outputs/$TAG.txt
+    DIFF=outputs/$TAG.diff
+    EXPECT=expected/$TAG.txt
+    VALGRND=valgrind/$TAG.txt
+
+    # run test with timeout
+    $TIMEOUT $TIMEOUT_INTERVAL $EXE $ARGS 2>/dev/null >"$OUTPUT"
+    if [ "$?" -lt 124 ]; then
+
+        # no timeout; compare output to the expected version
+        diff -u "$OUTPUT" "$EXPECT" >"$DIFF"
+        if [ -s "$DIFF" ]; then
+
+            # try alternative solution (if it exists)
+            EXPECT=expected/$TAG-2.txt
+            if [ -e "$EXPECT" ]; then
+                diff -u "$OUTPUT" "$EXPECT" >"$DIFF"
+                if [ -s "$DIFF" ]; then
+                    echo "$PTAG FAIL (see ${TPREFIX}$DIFF for details)"
+                else
+                    echo "$PTAG pass"
+                fi
+            else
+                echo "$PTAG FAIL (see ${TPREFIX}$DIFF for details)"
+            fi
+        else
+            echo "$PTAG pass"
+        fi
+
+        # run valgrind
+        $TIMEOUT $TIMEOUT_INTERVAL valgrind $VG_FLAGS $EXE $ARGS &>$VALGRND
+    else
+        echo "$PTAG FAIL (crash or timeout)"
+    fi
+}
+
+# initialize output folders
+mkdir -p outputs
+mkdir -p valgrind
+rm -f outputs/* valgrind/*
+
+# run individual tests
+source itests.include
+
+# check for memory leaks
+LEAK=`cat valgrind/*.txt | grep 'definitely lost' | grep -v ' 0 bytes in 0 blocks'`
+if [ -z "$LEAK" ]; then
+    echo "No memory leak found."
+else
+    echo "Memory leak(s) found. See files listed below for details."
+    grep 'definitely lost' valgrind/*.txt | sed -e 's/:.*$//g' | awk "{print \"  - ${TPREFIX}\" \$0}"
+fi
+
+# check for uninitialized values
+LEAK=`cat valgrind/*.txt | grep 'uninitialised value'`
+if [ -z "$LEAK" ]; then
+    echo "No uninitialized value found."
+else
+    echo "Uninitialized value(s) found. See files listed below for details."
+    grep 'uninitialised value' valgrind/*.txt | sed -e 's/:.*$//g' | awk "{print \"  - ${TPREFIX}\" \$0}"
+fi
+
diff --git a/p2-load/tests/itests.include b/p2-load/tests/itests.include
new file mode 100644
index 0000000..d1b0e77
--- /dev/null
+++ b/p2-load/tests/itests.include
@@ -0,0 +1,30 @@
+# list of integration tests
+#  format: run_test <TAG> <ARGS>
+#    <TAG>      used as the root for all filenames (i.e., "expected/$TAG.txt")
+#    <ARGS>     command-line arguments to test
+
+run_test    C_help                  "-h"
+run_test    C_simple_H              "-H inputs/simple.o"
+run_test    C_simple_s              "-s inputs/simple.o"
+run_test    C_multiseg_sH           "-sH inputs/multiseg.o"
+run_test    C_multiseg_f            "-f inputs/multiseg.o"
+run_test    C_multiseg_fsHM         "-fsHM inputs/multiseg.o"
+run_test    C_stripped_sM           "-sM inputs/stripped.o"
+run_test    C_more_flags_s          "-s inputs/moreflags.o"
+run_test    B_stripped_m            "-m inputs/stripped.o"
+run_test    B_stripped_mH           "-mH inputs/stripped.o"
+run_test    B_all_flags             "-Hsma inputs/simple.o"
+run_test    B_repeated              "-s -s -s inputs/simple.o"
+run_test    B_stack                 "-a inputs/stack.o"
+run_test    A_brief_full            "-m -M inputs/simple.o"
+run_test    A_bad_phdr_vaddr        "-m inputs/bad-phdr_vaddr.o"
+run_test    A_bad_phdr_short        "-s inputs/bad-phdr_short.o"
+run_test    A_bad_phdr_magic        "-s inputs/bad-phdr_magic.o"
+run_test    A_no_flags              "inputs/simple.o"
+run_test    A_no_flags_bad          "inputs/bad-phdr_short.o"
+run_test    A_missing_file          "-a"
+run_test    A_extra_params          "-a inputs/simple.o extra params"
+run_test    A_mem_conflict          "-m -M inputs/simple.o"
+run_test    A_full_conflict         "-m -f inputs/simple.o"
+run_test    A_unaligned1            "-a inputs/unaligned.o"
+run_test    A_unaligned2            "-a inputs/unaligned2.o"
diff --git a/p2-load/tests/itests.txt b/p2-load/tests/itests.txt
new file mode 100644
index 0000000..51f6b09
--- /dev/null
+++ b/p2-load/tests/itests.txt
@@ -0,0 +1,27 @@
+C_help                         pass
+C_simple_H                     pass
+C_simple_s                     pass
+C_multiseg_sH                  pass
+C_multiseg_f                   pass
+C_multiseg_fsHM                pass
+C_stripped_sM                  pass
+C_more_flags_s                 pass
+B_stripped_m                   pass
+B_stripped_mH                  pass
+B_all_flags                    pass
+B_repeated                     pass
+B_stack                        pass
+A_brief_full                   pass
+A_bad_phdr_vaddr               pass
+A_bad_phdr_short               pass
+A_bad_phdr_magic               pass
+A_no_flags                     pass
+A_no_flags_bad                 pass
+A_missing_file                 pass
+A_extra_params                 pass
+A_mem_conflict                 pass
+A_full_conflict                pass
+A_unaligned1                   pass
+A_unaligned2                   pass
+No memory leak found.
+No uninitialized value found.
diff --git a/p2-load/tests/outputs/A_bad_phdr_magic.diff b/p2-load/tests/outputs/A_bad_phdr_magic.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/A_bad_phdr_magic.txt b/p2-load/tests/outputs/A_bad_phdr_magic.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p2-load/tests/outputs/A_bad_phdr_magic.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p2-load/tests/outputs/A_bad_phdr_short.diff b/p2-load/tests/outputs/A_bad_phdr_short.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/A_bad_phdr_short.txt b/p2-load/tests/outputs/A_bad_phdr_short.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p2-load/tests/outputs/A_bad_phdr_short.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p2-load/tests/outputs/A_bad_phdr_vaddr.diff b/p2-load/tests/outputs/A_bad_phdr_vaddr.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/A_bad_phdr_vaddr.txt b/p2-load/tests/outputs/A_bad_phdr_vaddr.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p2-load/tests/outputs/A_bad_phdr_vaddr.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p2-load/tests/outputs/A_brief_full.diff b/p2-load/tests/outputs/A_brief_full.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/A_brief_full.txt b/p2-load/tests/outputs/A_brief_full.txt
new file mode 100644
index 0000000..d7838bc
--- /dev/null
+++ b/p2-load/tests/outputs/A_brief_full.txt
@@ -0,0 +1,9 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
diff --git a/p2-load/tests/outputs/A_extra_params.diff b/p2-load/tests/outputs/A_extra_params.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/A_extra_params.txt b/p2-load/tests/outputs/A_extra_params.txt
new file mode 100644
index 0000000..d7838bc
--- /dev/null
+++ b/p2-load/tests/outputs/A_extra_params.txt
@@ -0,0 +1,9 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
diff --git a/p2-load/tests/outputs/A_full_conflict.diff b/p2-load/tests/outputs/A_full_conflict.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/A_full_conflict.txt b/p2-load/tests/outputs/A_full_conflict.txt
new file mode 100644
index 0000000..d7838bc
--- /dev/null
+++ b/p2-load/tests/outputs/A_full_conflict.txt
@@ -0,0 +1,9 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
diff --git a/p2-load/tests/outputs/A_mem_conflict.diff b/p2-load/tests/outputs/A_mem_conflict.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/A_mem_conflict.txt b/p2-load/tests/outputs/A_mem_conflict.txt
new file mode 100644
index 0000000..d7838bc
--- /dev/null
+++ b/p2-load/tests/outputs/A_mem_conflict.txt
@@ -0,0 +1,9 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
diff --git a/p2-load/tests/outputs/A_missing_file.diff b/p2-load/tests/outputs/A_missing_file.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/A_missing_file.txt b/p2-load/tests/outputs/A_missing_file.txt
new file mode 100644
index 0000000..d7838bc
--- /dev/null
+++ b/p2-load/tests/outputs/A_missing_file.txt
@@ -0,0 +1,9 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
diff --git a/p2-load/tests/outputs/A_no_flags.diff b/p2-load/tests/outputs/A_no_flags.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/A_no_flags.txt b/p2-load/tests/outputs/A_no_flags.txt
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/A_no_flags_bad.diff b/p2-load/tests/outputs/A_no_flags_bad.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/A_no_flags_bad.txt b/p2-load/tests/outputs/A_no_flags_bad.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p2-load/tests/outputs/A_no_flags_bad.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p2-load/tests/outputs/A_unaligned1.diff b/p2-load/tests/outputs/A_unaligned1.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/A_unaligned1.txt b/p2-load/tests/outputs/A_unaligned1.txt
new file mode 100644
index 0000000..e403f1b
--- /dev/null
+++ b/p2-load/tests/outputs/A_unaligned1.txt
@@ -0,0 +1,17 @@
+01 00 18 01 10 00 03 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x118
+There are 3 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x004c    0x0009    0x0000    CODE      R X
+  01       0x0055    0x0002    0x0118    CODE      R X
+  02       0x0057    0x0008    0x013a    DATA      RW 
+Contents of memory from 0000 to 0009:
+  0000  70 18 01 00 00 00 00 00  00
+Contents of memory from 0118 to 011a:
+  0110                           10 00
+Contents of memory from 013a to 0142:
+  0130                                 39 30 00 00 00 00
+  0140  00 00
diff --git a/p2-load/tests/outputs/A_unaligned2.diff b/p2-load/tests/outputs/A_unaligned2.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/A_unaligned2.txt b/p2-load/tests/outputs/A_unaligned2.txt
new file mode 100644
index 0000000..1a02a1b
--- /dev/null
+++ b/p2-load/tests/outputs/A_unaligned2.txt
@@ -0,0 +1,18 @@
+01 00 55 05 10 00 03 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x555
+There are 3 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x004c    0x0009    0x0000    CODE      R X
+  01       0x0055    0x001f    0x0555    CODE      R X
+  02       0x0074    0x0008    0x0987    DATA      RW 
+Contents of memory from 0000 to 0009:
+  0000  70 55 05 00 00 00 00 00  00
+Contents of memory from 0555 to 0574:
+  0550                 30 f0 4d  01 00 00 00 00 00 00 30
+  0560  f3 de 00 00 00 00 00 00  00 30 f1 6f 00 00 00 00
+  0570  00 00 00 00
+Contents of memory from 0987 to 098f:
+  0980                       dd  cc bb aa 00 00 00 00
diff --git a/p2-load/tests/outputs/B_all_flags.diff b/p2-load/tests/outputs/B_all_flags.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/B_all_flags.txt b/p2-load/tests/outputs/B_all_flags.txt
new file mode 100644
index 0000000..d6db550
--- /dev/null
+++ b/p2-load/tests/outputs/B_all_flags.txt
@@ -0,0 +1,14 @@
+01 00 00 01 10 00 02 00  58 00 70 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 2 program headers, starting at offset 16 (0x10)
+There is a symbol table starting at offset 88 (0x58)
+There is a string table starting at offset 112 (0x70)
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0038    0x0015    0x0100    CODE      R X
+  01       0x004d    0x000b    0x0200    DATA      RW 
+Contents of memory from 0100 to 0115:
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00
+Contents of memory from 0200 to 020b:
+  0200  aa bb cc dd 00 00 00 dd  00 00 00
diff --git a/p2-load/tests/outputs/B_repeated.diff b/p2-load/tests/outputs/B_repeated.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/B_repeated.txt b/p2-load/tests/outputs/B_repeated.txt
new file mode 100644
index 0000000..042929e
--- /dev/null
+++ b/p2-load/tests/outputs/B_repeated.txt
@@ -0,0 +1,3 @@
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0038    0x0015    0x0100    CODE      R X
+  01       0x004d    0x000b    0x0200    DATA      RW 
diff --git a/p2-load/tests/outputs/B_stack.diff b/p2-load/tests/outputs/B_stack.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/B_stack.txt b/p2-load/tests/outputs/B_stack.txt
new file mode 100644
index 0000000..ddeb8f2
--- /dev/null
+++ b/p2-load/tests/outputs/B_stack.txt
@@ -0,0 +1,27 @@
+01 00 00 01 10 00 05 00  f4 00 16 01 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 5 program headers, starting at offset 16 (0x10)
+There is a symbol table starting at offset 244 (0xf4)
+There is a string table starting at offset 278 (0x116)
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0074    0x001e    0x0100    CODE      R X
+  01       0x0092    0x0032    0x0200    CODE      R X
+  02       0x00c4    0x000d    0x0300    DATA      RW 
+  03       0x00d1    0x0023    0x0400    DATA      R  
+  04       0x00f4    0x0000    0x0f00    STACK     RW 
+Contents of memory from 0100 to 011e:
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f5 00 0f 00 00
+  0110  00 00 00 00 80 00 02 00  00 00 00 00 00 00
+Contents of memory from 0200 to 0232:
+  0200  30 f0 02 03 00 00 00 00  00 00 50 30 00 00 00 00
+  0210  00 00 00 00 20 31 a0 0f  b0 3f c0 c1 c5 40 13 fd
+  0220  ff ff ff 00 00 00 00 60  31 70 1d 02 00 00 00 00
+  0230  00 00
+Contents of memory from 0300 to 030d:
+  0300  bb aa 0f 0a 00 00 00 00  00 00 00 dd cc
+Contents of memory from 0400 to 0423:
+  0400  68 65 6c 6c 6f 20 77 6f  72 6c 64 00 67 6f 6f 64
+  0410  00 79 61 64 64 61 20 79  61 64 64 61 20 79 61 64
+  0420  64 61 00
+Contents of memory from 0f00 to 0f00:
diff --git a/p2-load/tests/outputs/B_stripped_m.diff b/p2-load/tests/outputs/B_stripped_m.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/B_stripped_m.txt b/p2-load/tests/outputs/B_stripped_m.txt
new file mode 100644
index 0000000..07aaa20
--- /dev/null
+++ b/p2-load/tests/outputs/B_stripped_m.txt
@@ -0,0 +1,5 @@
+Contents of memory from 0100 to 0115:
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00
+Contents of memory from 0200 to 020b:
+  0200  aa bb cc dd 00 00 00 dd  00 00 00
diff --git a/p2-load/tests/outputs/B_stripped_mH.diff b/p2-load/tests/outputs/B_stripped_mH.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/B_stripped_mH.txt b/p2-load/tests/outputs/B_stripped_mH.txt
new file mode 100644
index 0000000..aa947f5
--- /dev/null
+++ b/p2-load/tests/outputs/B_stripped_mH.txt
@@ -0,0 +1,11 @@
+01 00 00 01 10 00 02 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 2 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+Contents of memory from 0100 to 0115:
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00
+Contents of memory from 0200 to 020b:
+  0200  aa bb cc dd 00 00 00 dd  00 00 00
diff --git a/p2-load/tests/outputs/C_help.diff b/p2-load/tests/outputs/C_help.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/C_help.txt b/p2-load/tests/outputs/C_help.txt
new file mode 100644
index 0000000..d7838bc
--- /dev/null
+++ b/p2-load/tests/outputs/C_help.txt
@@ -0,0 +1,9 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
diff --git a/p2-load/tests/outputs/C_more_flags_s.diff b/p2-load/tests/outputs/C_more_flags_s.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/C_more_flags_s.txt b/p2-load/tests/outputs/C_more_flags_s.txt
new file mode 100644
index 0000000..9003a84
--- /dev/null
+++ b/p2-load/tests/outputs/C_more_flags_s.txt
@@ -0,0 +1,5 @@
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0060    0x0015    0x0100    DATA       W 
+  01       0x0075    0x000b    0x0200    DATA        X
+  02       0x0080    0x0015    0x0300    DATA       WX
+  03       0x0090    0x000b    0x0200    DATA      RWX
diff --git a/p2-load/tests/outputs/C_multiseg_f.diff b/p2-load/tests/outputs/C_multiseg_f.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/C_multiseg_f.txt b/p2-load/tests/outputs/C_multiseg_f.txt
new file mode 100644
index 0000000..da6ea09
--- /dev/null
+++ b/p2-load/tests/outputs/C_multiseg_f.txt
@@ -0,0 +1,268 @@
+01 00 00 01 10 00 04 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 4 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0060    0x0015    0x0100    CODE      R X
+  01       0x0075    0x000b    0x0200    DATA      RW 
+  02       0x0080    0x0015    0x0300    CODE      R X
+  03       0x0090    0x000b    0x0200    DATA      RW 
+Contents of memory from 0000 to 1000:
+  0000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  70 08 01 00 00 aa bb cc  dd 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0310  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p2-load/tests/outputs/C_multiseg_fsHM.diff b/p2-load/tests/outputs/C_multiseg_fsHM.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/C_multiseg_fsHM.txt b/p2-load/tests/outputs/C_multiseg_fsHM.txt
new file mode 100644
index 0000000..da6ea09
--- /dev/null
+++ b/p2-load/tests/outputs/C_multiseg_fsHM.txt
@@ -0,0 +1,268 @@
+01 00 00 01 10 00 04 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 4 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0060    0x0015    0x0100    CODE      R X
+  01       0x0075    0x000b    0x0200    DATA      RW 
+  02       0x0080    0x0015    0x0300    CODE      R X
+  03       0x0090    0x000b    0x0200    DATA      RW 
+Contents of memory from 0000 to 1000:
+  0000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  70 08 01 00 00 aa bb cc  dd 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0310  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p2-load/tests/outputs/C_multiseg_sH.diff b/p2-load/tests/outputs/C_multiseg_sH.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/C_multiseg_sH.txt b/p2-load/tests/outputs/C_multiseg_sH.txt
new file mode 100644
index 0000000..1d3a3a5
--- /dev/null
+++ b/p2-load/tests/outputs/C_multiseg_sH.txt
@@ -0,0 +1,11 @@
+01 00 00 01 10 00 04 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 4 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0060    0x0015    0x0100    CODE      R X
+  01       0x0075    0x000b    0x0200    DATA      RW 
+  02       0x0080    0x0015    0x0300    CODE      R X
+  03       0x0090    0x000b    0x0200    DATA      RW 
diff --git a/p2-load/tests/outputs/C_simple_H.diff b/p2-load/tests/outputs/C_simple_H.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/C_simple_H.txt b/p2-load/tests/outputs/C_simple_H.txt
new file mode 100644
index 0000000..2705cba
--- /dev/null
+++ b/p2-load/tests/outputs/C_simple_H.txt
@@ -0,0 +1,6 @@
+01 00 00 01 10 00 02 00  58 00 70 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 2 program headers, starting at offset 16 (0x10)
+There is a symbol table starting at offset 88 (0x58)
+There is a string table starting at offset 112 (0x70)
diff --git a/p2-load/tests/outputs/C_simple_s.diff b/p2-load/tests/outputs/C_simple_s.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/C_simple_s.txt b/p2-load/tests/outputs/C_simple_s.txt
new file mode 100644
index 0000000..042929e
--- /dev/null
+++ b/p2-load/tests/outputs/C_simple_s.txt
@@ -0,0 +1,3 @@
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0038    0x0015    0x0100    CODE      R X
+  01       0x004d    0x000b    0x0200    DATA      RW 
diff --git a/p2-load/tests/outputs/C_stripped_sM.diff b/p2-load/tests/outputs/C_stripped_sM.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p2-load/tests/outputs/C_stripped_sM.txt b/p2-load/tests/outputs/C_stripped_sM.txt
new file mode 100644
index 0000000..294e8db
--- /dev/null
+++ b/p2-load/tests/outputs/C_stripped_sM.txt
@@ -0,0 +1,260 @@
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0038    0x0015    0x0100    CODE      R X
+  01       0x004d    0x000b    0x0200    DATA      RW 
+Contents of memory from 0000 to 1000:
+  0000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  aa bb cc dd 00 00 00 dd  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p2-load/tests/private.o b/p2-load/tests/private.o
new file mode 100644
index 0000000..0966f0d
Binary files /dev/null and b/p2-load/tests/private.o differ
diff --git a/p2-load/tests/public.c b/p2-load/tests/public.c
new file mode 100644
index 0000000..1098ecf
--- /dev/null
+++ b/p2-load/tests/public.c
@@ -0,0 +1,87 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include <check.h>
+
+#include "../p2-load.h"
+
+/* check read_phdr (code section) */
+START_TEST (C_read_phdr_code)
+{
+    FILE *fp = fopen ("inputs/stripped.o", "r");
+    uint16_t offset = 0x10;
+    elf_phdr_t phdr;
+    bool rc = false;
+    ck_assert (fp != NULL);
+
+    rc = read_phdr (fp, offset, &phdr);
+    ck_assert (rc == true);
+    ck_assert (phdr.p_offset == 0x38);
+    ck_assert (phdr.p_vaddr == 0x100);
+    ck_assert (phdr.p_size == 0x15);
+    ck_assert (phdr.p_type == CODE);
+    ck_assert (phdr.p_flags == 0x5);     // 101
+    ck_assert (phdr.magic == 0xDEADBEEF);
+}
+END_TEST
+
+/* check read_phdr (data section) */
+START_TEST (C_read_phdr_data)
+{
+    FILE *fp = fopen ("inputs/stripped.o", "r");
+    uint16_t offset = 0x10 + sizeof(elf_phdr_t);
+    elf_phdr_t phdr;
+    bool rc = false;
+    ck_assert (fp != NULL);
+
+    rc = read_phdr (fp, offset, &phdr);
+    ck_assert (rc == true);
+    ck_assert (phdr.p_offset == 0x4d);
+    ck_assert (phdr.p_vaddr == 0x200);
+    ck_assert (phdr.p_size == 0x0b);
+    ck_assert (phdr.p_type == DATA);
+    ck_assert (phdr.p_flags == 0x6);     // 110
+    ck_assert (phdr.magic == 0xDEADBEEF);
+}
+END_TEST
+
+/* check load_segment */
+START_TEST (C_load_segment)
+{
+    FILE *fp = fopen ("inputs/simple.o", "r");
+    ck_assert (fp != NULL);
+    byte_t *memory = (byte_t*) calloc (32, sizeof (uint8_t));
+    elf_phdr_t phdr;
+    phdr.p_offset = 0x30;
+    phdr.p_vaddr = 0x10;
+    phdr.p_size = 0x10;
+    phdr.p_type = DATA;
+    phdr.p_flags = 0x6;      // 110
+    phdr.magic = 0xDEADBEEF;
+    uint8_t expected[] = { 0, 0, 6, 0, 0xef, 0xbe, 0xad, 0xde,
+        0x30, 0xf3, 0xf, 0, 0, 0, 0x20, 0x31 };
+    size_t i = 0;
+
+    bool rc = load_segment (fp, memory, &phdr);
+    ck_assert (rc == true);
+
+    for (i = 0; i < 16; i++) {
+        ck_assert (memory[i] == 0);
+    }
+
+    for (i = 0; i < 16; i++) {
+        ck_assert (memory[i+16] == expected[i]);
+    }
+}
+END_TEST
+
+void public_tests (Suite *s)
+{
+    TCase *tc_public = tcase_create ("Public");
+    tcase_add_test (tc_public, C_read_phdr_code);
+    tcase_add_test (tc_public, C_read_phdr_data);
+    tcase_add_test (tc_public, C_load_segment);
+    suite_add_tcase (s, tc_public);
+}
+
diff --git a/p2-load/tests/public.o b/p2-load/tests/public.o
new file mode 100644
index 0000000..335f1c1
Binary files /dev/null and b/p2-load/tests/public.o differ
diff --git a/p2-load/tests/testsuite b/p2-load/tests/testsuite
new file mode 100644
index 0000000..74dcd81
Binary files /dev/null and b/p2-load/tests/testsuite differ
diff --git a/p2-load/tests/testsuite.c b/p2-load/tests/testsuite.c
new file mode 100644
index 0000000..717c193
--- /dev/null
+++ b/p2-load/tests/testsuite.c
@@ -0,0 +1,34 @@
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <assert.h>
+#include <time.h>
+
+#include <check.h>
+
+extern void public_tests (Suite *s);
+extern void private_tests (Suite *s);
+
+Suite * test_suite (void)
+{
+    Suite *s = suite_create ("Default");
+    public_tests (s);
+    private_tests (s);
+    return s;
+}
+
+void run_testsuite (void)
+{
+    Suite *s = test_suite ();
+    SRunner *sr = srunner_create (s);
+    srunner_run_all (sr, CK_NORMAL);
+    srunner_free (sr);
+}
+
+int main (void)
+{
+    srand((unsigned)time(NULL));
+    run_testsuite ();
+    return EXIT_SUCCESS;
+}
diff --git a/p2-load/tests/testsuite.o b/p2-load/tests/testsuite.o
new file mode 100644
index 0000000..c05f5ab
Binary files /dev/null and b/p2-load/tests/testsuite.o differ
diff --git a/p2-load/tests/utests.txt b/p2-load/tests/utests.txt
new file mode 100644
index 0000000..0e47d06
--- /dev/null
+++ b/p2-load/tests/utests.txt
@@ -0,0 +1,2 @@
+Running suite(s): Default
+100%: Checks: 12, Failures: 0, Errors: 0
diff --git a/p2-load/tests/valgrind/A_bad_phdr_magic.txt b/p2-load/tests/valgrind/A_bad_phdr_magic.txt
new file mode 100644
index 0000000..0e75c31
--- /dev/null
+++ b/p2-load/tests/valgrind/A_bad_phdr_magic.txt
@@ -0,0 +1,15 @@
+==2765188== Memcheck, a memory error detector
+==2765188== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765188== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765188== Command: ../y86 -s inputs/bad-phdr_magic.o
+==2765188== 
+Failed to read file
+==2765188== 
+==2765188== HEAP SUMMARY:
+==2765188==     in use at exit: 0 bytes in 0 blocks
+==2765188==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2765188== 
+==2765188== All heap blocks were freed -- no leaks are possible
+==2765188== 
+==2765188== For lists of detected and suppressed errors, rerun with: -s
+==2765188== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/A_bad_phdr_short.txt b/p2-load/tests/valgrind/A_bad_phdr_short.txt
new file mode 100644
index 0000000..d423c62
--- /dev/null
+++ b/p2-load/tests/valgrind/A_bad_phdr_short.txt
@@ -0,0 +1,15 @@
+==2765178== Memcheck, a memory error detector
+==2765178== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765178== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765178== Command: ../y86 -s inputs/bad-phdr_short.o
+==2765178== 
+Failed to read file
+==2765178== 
+==2765178== HEAP SUMMARY:
+==2765178==     in use at exit: 0 bytes in 0 blocks
+==2765178==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2765178== 
+==2765178== All heap blocks were freed -- no leaks are possible
+==2765178== 
+==2765178== For lists of detected and suppressed errors, rerun with: -s
+==2765178== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/A_bad_phdr_vaddr.txt b/p2-load/tests/valgrind/A_bad_phdr_vaddr.txt
new file mode 100644
index 0000000..ef0a551
--- /dev/null
+++ b/p2-load/tests/valgrind/A_bad_phdr_vaddr.txt
@@ -0,0 +1,15 @@
+==2765155== Memcheck, a memory error detector
+==2765155== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765155== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765155== Command: ../y86 -m inputs/bad-phdr_vaddr.o
+==2765155== 
+Failed to read file
+==2765155== 
+==2765155== HEAP SUMMARY:
+==2765155==     in use at exit: 0 bytes in 0 blocks
+==2765155==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2765155== 
+==2765155== All heap blocks were freed -- no leaks are possible
+==2765155== 
+==2765155== For lists of detected and suppressed errors, rerun with: -s
+==2765155== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/A_brief_full.txt b/p2-load/tests/valgrind/A_brief_full.txt
new file mode 100644
index 0000000..976de64
--- /dev/null
+++ b/p2-load/tests/valgrind/A_brief_full.txt
@@ -0,0 +1,23 @@
+==2765141== Memcheck, a memory error detector
+==2765141== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765141== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765141== Command: ../y86 -m -M inputs/simple.o
+==2765141== 
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+==2765141== 
+==2765141== HEAP SUMMARY:
+==2765141==     in use at exit: 0 bytes in 0 blocks
+==2765141==   total heap usage: 1 allocs, 1 frees, 8,192 bytes allocated
+==2765141== 
+==2765141== All heap blocks were freed -- no leaks are possible
+==2765141== 
+==2765141== For lists of detected and suppressed errors, rerun with: -s
+==2765141== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/A_extra_params.txt b/p2-load/tests/valgrind/A_extra_params.txt
new file mode 100644
index 0000000..e0ce77f
--- /dev/null
+++ b/p2-load/tests/valgrind/A_extra_params.txt
@@ -0,0 +1,23 @@
+==2765226== Memcheck, a memory error detector
+==2765226== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765226== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765226== Command: ../y86 -a inputs/simple.o extra params
+==2765226== 
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+==2765226== 
+==2765226== HEAP SUMMARY:
+==2765226==     in use at exit: 0 bytes in 0 blocks
+==2765226==   total heap usage: 1 allocs, 1 frees, 8,192 bytes allocated
+==2765226== 
+==2765226== All heap blocks were freed -- no leaks are possible
+==2765226== 
+==2765226== For lists of detected and suppressed errors, rerun with: -s
+==2765226== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/A_full_conflict.txt b/p2-load/tests/valgrind/A_full_conflict.txt
new file mode 100644
index 0000000..d81ece7
--- /dev/null
+++ b/p2-load/tests/valgrind/A_full_conflict.txt
@@ -0,0 +1,23 @@
+==2765260== Memcheck, a memory error detector
+==2765260== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765260== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765260== Command: ../y86 -m -f inputs/simple.o
+==2765260== 
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+==2765260== 
+==2765260== HEAP SUMMARY:
+==2765260==     in use at exit: 0 bytes in 0 blocks
+==2765260==   total heap usage: 1 allocs, 1 frees, 8,192 bytes allocated
+==2765260== 
+==2765260== All heap blocks were freed -- no leaks are possible
+==2765260== 
+==2765260== For lists of detected and suppressed errors, rerun with: -s
+==2765260== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/A_mem_conflict.txt b/p2-load/tests/valgrind/A_mem_conflict.txt
new file mode 100644
index 0000000..6a3ba22
--- /dev/null
+++ b/p2-load/tests/valgrind/A_mem_conflict.txt
@@ -0,0 +1,23 @@
+==2765248== Memcheck, a memory error detector
+==2765248== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765248== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765248== Command: ../y86 -m -M inputs/simple.o
+==2765248== 
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+==2765248== 
+==2765248== HEAP SUMMARY:
+==2765248==     in use at exit: 0 bytes in 0 blocks
+==2765248==   total heap usage: 1 allocs, 1 frees, 8,192 bytes allocated
+==2765248== 
+==2765248== All heap blocks were freed -- no leaks are possible
+==2765248== 
+==2765248== For lists of detected and suppressed errors, rerun with: -s
+==2765248== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/A_missing_file.txt b/p2-load/tests/valgrind/A_missing_file.txt
new file mode 100644
index 0000000..b0022dc
--- /dev/null
+++ b/p2-load/tests/valgrind/A_missing_file.txt
@@ -0,0 +1,23 @@
+==2765213== Memcheck, a memory error detector
+==2765213== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765213== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765213== Command: ../y86 -a
+==2765213== 
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+==2765213== 
+==2765213== HEAP SUMMARY:
+==2765213==     in use at exit: 0 bytes in 0 blocks
+==2765213==   total heap usage: 1 allocs, 1 frees, 8,192 bytes allocated
+==2765213== 
+==2765213== All heap blocks were freed -- no leaks are possible
+==2765213== 
+==2765213== For lists of detected and suppressed errors, rerun with: -s
+==2765213== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/A_no_flags.txt b/p2-load/tests/valgrind/A_no_flags.txt
new file mode 100644
index 0000000..49a05cb
--- /dev/null
+++ b/p2-load/tests/valgrind/A_no_flags.txt
@@ -0,0 +1,14 @@
+==2765201== Memcheck, a memory error detector
+==2765201== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765201== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765201== Command: ../y86 inputs/simple.o
+==2765201== 
+==2765201== 
+==2765201== HEAP SUMMARY:
+==2765201==     in use at exit: 0 bytes in 0 blocks
+==2765201==   total heap usage: 2 allocs, 2 frees, 8,664 bytes allocated
+==2765201== 
+==2765201== All heap blocks were freed -- no leaks are possible
+==2765201== 
+==2765201== For lists of detected and suppressed errors, rerun with: -s
+==2765201== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/A_no_flags_bad.txt b/p2-load/tests/valgrind/A_no_flags_bad.txt
new file mode 100644
index 0000000..1fc3944
--- /dev/null
+++ b/p2-load/tests/valgrind/A_no_flags_bad.txt
@@ -0,0 +1,15 @@
+==2765207== Memcheck, a memory error detector
+==2765207== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765207== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765207== Command: ../y86 inputs/bad-phdr_short.o
+==2765207== 
+Failed to read file
+==2765207== 
+==2765207== HEAP SUMMARY:
+==2765207==     in use at exit: 0 bytes in 0 blocks
+==2765207==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2765207== 
+==2765207== All heap blocks were freed -- no leaks are possible
+==2765207== 
+==2765207== For lists of detected and suppressed errors, rerun with: -s
+==2765207== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/A_unaligned1.txt b/p2-load/tests/valgrind/A_unaligned1.txt
new file mode 100644
index 0000000..53f3413
--- /dev/null
+++ b/p2-load/tests/valgrind/A_unaligned1.txt
@@ -0,0 +1,31 @@
+==2765283== Memcheck, a memory error detector
+==2765283== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765283== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765283== Command: ../y86 -a inputs/unaligned.o
+==2765283== 
+01 00 18 01 10 00 03 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x118
+There are 3 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x004c    0x0009    0x0000    CODE      R X
+  01       0x0055    0x0002    0x0118    CODE      R X
+  02       0x0057    0x0008    0x013a    DATA      RW 
+Contents of memory from 0000 to 0009:
+  0000  70 18 01 00 00 00 00 00  00
+Contents of memory from 0118 to 011a:
+  0110                           10 00
+Contents of memory from 013a to 0142:
+  0130                                 39 30 00 00 00 00
+  0140  00 00
+==2765283== 
+==2765283== HEAP SUMMARY:
+==2765283==     in use at exit: 0 bytes in 0 blocks
+==2765283==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2765283== 
+==2765283== All heap blocks were freed -- no leaks are possible
+==2765283== 
+==2765283== For lists of detected and suppressed errors, rerun with: -s
+==2765283== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/A_unaligned2.txt b/p2-load/tests/valgrind/A_unaligned2.txt
new file mode 100644
index 0000000..2814983
--- /dev/null
+++ b/p2-load/tests/valgrind/A_unaligned2.txt
@@ -0,0 +1,32 @@
+==2765293== Memcheck, a memory error detector
+==2765293== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765293== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765293== Command: ../y86 -a inputs/unaligned2.o
+==2765293== 
+01 00 55 05 10 00 03 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x555
+There are 3 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x004c    0x0009    0x0000    CODE      R X
+  01       0x0055    0x001f    0x0555    CODE      R X
+  02       0x0074    0x0008    0x0987    DATA      RW 
+Contents of memory from 0000 to 0009:
+  0000  70 55 05 00 00 00 00 00  00
+Contents of memory from 0555 to 0574:
+  0550                 30 f0 4d  01 00 00 00 00 00 00 30
+  0560  f3 de 00 00 00 00 00 00  00 30 f1 6f 00 00 00 00
+  0570  00 00 00 00
+Contents of memory from 0987 to 098f:
+  0980                       dd  cc bb aa 00 00 00 00
+==2765293== 
+==2765293== HEAP SUMMARY:
+==2765293==     in use at exit: 0 bytes in 0 blocks
+==2765293==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2765293== 
+==2765293== All heap blocks were freed -- no leaks are possible
+==2765293== 
+==2765293== For lists of detected and suppressed errors, rerun with: -s
+==2765293== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/B_all_flags.txt b/p2-load/tests/valgrind/B_all_flags.txt
new file mode 100644
index 0000000..e483c05
--- /dev/null
+++ b/p2-load/tests/valgrind/B_all_flags.txt
@@ -0,0 +1,28 @@
+==2765100== Memcheck, a memory error detector
+==2765100== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765100== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765100== Command: ../y86 -Hsma inputs/simple.o
+==2765100== 
+01 00 00 01 10 00 02 00  58 00 70 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 2 program headers, starting at offset 16 (0x10)
+There is a symbol table starting at offset 88 (0x58)
+There is a string table starting at offset 112 (0x70)
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0038    0x0015    0x0100    CODE      R X
+  01       0x004d    0x000b    0x0200    DATA      RW 
+Contents of memory from 0100 to 0115:
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00
+Contents of memory from 0200 to 020b:
+  0200  aa bb cc dd 00 00 00 dd  00 00 00
+==2765100== 
+==2765100== HEAP SUMMARY:
+==2765100==     in use at exit: 0 bytes in 0 blocks
+==2765100==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2765100== 
+==2765100== All heap blocks were freed -- no leaks are possible
+==2765100== 
+==2765100== For lists of detected and suppressed errors, rerun with: -s
+==2765100== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/B_repeated.txt b/p2-load/tests/valgrind/B_repeated.txt
new file mode 100644
index 0000000..aac6c4b
--- /dev/null
+++ b/p2-load/tests/valgrind/B_repeated.txt
@@ -0,0 +1,17 @@
+==2765113== Memcheck, a memory error detector
+==2765113== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765113== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765113== Command: ../y86 -s -s -s inputs/simple.o
+==2765113== 
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0038    0x0015    0x0100    CODE      R X
+  01       0x004d    0x000b    0x0200    DATA      RW 
+==2765113== 
+==2765113== HEAP SUMMARY:
+==2765113==     in use at exit: 0 bytes in 0 blocks
+==2765113==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2765113== 
+==2765113== All heap blocks were freed -- no leaks are possible
+==2765113== 
+==2765113== For lists of detected and suppressed errors, rerun with: -s
+==2765113== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/B_stack.txt b/p2-load/tests/valgrind/B_stack.txt
new file mode 100644
index 0000000..6a87206
--- /dev/null
+++ b/p2-load/tests/valgrind/B_stack.txt
@@ -0,0 +1,41 @@
+==2765119== Memcheck, a memory error detector
+==2765119== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765119== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765119== Command: ../y86 -a inputs/stack.o
+==2765119== 
+01 00 00 01 10 00 05 00  f4 00 16 01 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 5 program headers, starting at offset 16 (0x10)
+There is a symbol table starting at offset 244 (0xf4)
+There is a string table starting at offset 278 (0x116)
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0074    0x001e    0x0100    CODE      R X
+  01       0x0092    0x0032    0x0200    CODE      R X
+  02       0x00c4    0x000d    0x0300    DATA      RW 
+  03       0x00d1    0x0023    0x0400    DATA      R  
+  04       0x00f4    0x0000    0x0f00    STACK     RW 
+Contents of memory from 0100 to 011e:
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f5 00 0f 00 00
+  0110  00 00 00 00 80 00 02 00  00 00 00 00 00 00
+Contents of memory from 0200 to 0232:
+  0200  30 f0 02 03 00 00 00 00  00 00 50 30 00 00 00 00
+  0210  00 00 00 00 20 31 a0 0f  b0 3f c0 c1 c5 40 13 fd
+  0220  ff ff ff 00 00 00 00 60  31 70 1d 02 00 00 00 00
+  0230  00 00
+Contents of memory from 0300 to 030d:
+  0300  bb aa 0f 0a 00 00 00 00  00 00 00 dd cc
+Contents of memory from 0400 to 0423:
+  0400  68 65 6c 6c 6f 20 77 6f  72 6c 64 00 67 6f 6f 64
+  0410  00 79 61 64 64 61 20 79  61 64 64 61 20 79 61 64
+  0420  64 61 00
+Contents of memory from 0f00 to 0f00:
+==2765119== 
+==2765119== HEAP SUMMARY:
+==2765119==     in use at exit: 0 bytes in 0 blocks
+==2765119==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2765119== 
+==2765119== All heap blocks were freed -- no leaks are possible
+==2765119== 
+==2765119== For lists of detected and suppressed errors, rerun with: -s
+==2765119== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/B_stripped_m.txt b/p2-load/tests/valgrind/B_stripped_m.txt
new file mode 100644
index 0000000..5b12257
--- /dev/null
+++ b/p2-load/tests/valgrind/B_stripped_m.txt
@@ -0,0 +1,19 @@
+==2765084== Memcheck, a memory error detector
+==2765084== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765084== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765084== Command: ../y86 -m inputs/stripped.o
+==2765084== 
+Contents of memory from 0100 to 0115:
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00
+Contents of memory from 0200 to 020b:
+  0200  aa bb cc dd 00 00 00 dd  00 00 00
+==2765084== 
+==2765084== HEAP SUMMARY:
+==2765084==     in use at exit: 0 bytes in 0 blocks
+==2765084==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2765084== 
+==2765084== All heap blocks were freed -- no leaks are possible
+==2765084== 
+==2765084== For lists of detected and suppressed errors, rerun with: -s
+==2765084== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/B_stripped_mH.txt b/p2-load/tests/valgrind/B_stripped_mH.txt
new file mode 100644
index 0000000..0646d88
--- /dev/null
+++ b/p2-load/tests/valgrind/B_stripped_mH.txt
@@ -0,0 +1,25 @@
+==2765094== Memcheck, a memory error detector
+==2765094== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765094== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765094== Command: ../y86 -mH inputs/stripped.o
+==2765094== 
+01 00 00 01 10 00 02 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 2 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+Contents of memory from 0100 to 0115:
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00
+Contents of memory from 0200 to 020b:
+  0200  aa bb cc dd 00 00 00 dd  00 00 00
+==2765094== 
+==2765094== HEAP SUMMARY:
+==2765094==     in use at exit: 0 bytes in 0 blocks
+==2765094==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2765094== 
+==2765094== All heap blocks were freed -- no leaks are possible
+==2765094== 
+==2765094== For lists of detected and suppressed errors, rerun with: -s
+==2765094== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/C_help.txt b/p2-load/tests/valgrind/C_help.txt
new file mode 100644
index 0000000..6fa58dd
--- /dev/null
+++ b/p2-load/tests/valgrind/C_help.txt
@@ -0,0 +1,23 @@
+==2764894== Memcheck, a memory error detector
+==2764894== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2764894== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2764894== Command: ../y86 -h
+==2764894== 
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+==2764894== 
+==2764894== HEAP SUMMARY:
+==2764894==     in use at exit: 0 bytes in 0 blocks
+==2764894==   total heap usage: 1 allocs, 1 frees, 8,192 bytes allocated
+==2764894== 
+==2764894== All heap blocks were freed -- no leaks are possible
+==2764894== 
+==2764894== For lists of detected and suppressed errors, rerun with: -s
+==2764894== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/C_more_flags_s.txt b/p2-load/tests/valgrind/C_more_flags_s.txt
new file mode 100644
index 0000000..f5dd0f0
--- /dev/null
+++ b/p2-load/tests/valgrind/C_more_flags_s.txt
@@ -0,0 +1,19 @@
+==2765052== Memcheck, a memory error detector
+==2765052== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765052== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765052== Command: ../y86 -s inputs/moreflags.o
+==2765052== 
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0060    0x0015    0x0100    DATA       W 
+  01       0x0075    0x000b    0x0200    DATA        X
+  02       0x0080    0x0015    0x0300    DATA       WX
+  03       0x0090    0x000b    0x0200    DATA      RWX
+==2765052== 
+==2765052== HEAP SUMMARY:
+==2765052==     in use at exit: 0 bytes in 0 blocks
+==2765052==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2765052== 
+==2765052== All heap blocks were freed -- no leaks are possible
+==2765052== 
+==2765052== For lists of detected and suppressed errors, rerun with: -s
+==2765052== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/C_multiseg_f.txt b/p2-load/tests/valgrind/C_multiseg_f.txt
new file mode 100644
index 0000000..b8459e0
--- /dev/null
+++ b/p2-load/tests/valgrind/C_multiseg_f.txt
@@ -0,0 +1,282 @@
+==2764995== Memcheck, a memory error detector
+==2764995== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2764995== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2764995== Command: ../y86 -f inputs/multiseg.o
+==2764995== 
+01 00 00 01 10 00 04 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 4 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0060    0x0015    0x0100    CODE      R X
+  01       0x0075    0x000b    0x0200    DATA      RW 
+  02       0x0080    0x0015    0x0300    CODE      R X
+  03       0x0090    0x000b    0x0200    DATA      RW 
+Contents of memory from 0000 to 1000:
+  0000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  70 08 01 00 00 aa bb cc  dd 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0310  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==2764995== 
+==2764995== HEAP SUMMARY:
+==2764995==     in use at exit: 0 bytes in 0 blocks
+==2764995==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2764995== 
+==2764995== All heap blocks were freed -- no leaks are possible
+==2764995== 
+==2764995== For lists of detected and suppressed errors, rerun with: -s
+==2764995== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/C_multiseg_fsHM.txt b/p2-load/tests/valgrind/C_multiseg_fsHM.txt
new file mode 100644
index 0000000..cba9a0f
--- /dev/null
+++ b/p2-load/tests/valgrind/C_multiseg_fsHM.txt
@@ -0,0 +1,282 @@
+==2765002== Memcheck, a memory error detector
+==2765002== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765002== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765002== Command: ../y86 -fsHM inputs/multiseg.o
+==2765002== 
+01 00 00 01 10 00 04 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 4 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0060    0x0015    0x0100    CODE      R X
+  01       0x0075    0x000b    0x0200    DATA      RW 
+  02       0x0080    0x0015    0x0300    CODE      R X
+  03       0x0090    0x000b    0x0200    DATA      RW 
+Contents of memory from 0000 to 1000:
+  0000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  70 08 01 00 00 aa bb cc  dd 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0310  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==2765002== 
+==2765002== HEAP SUMMARY:
+==2765002==     in use at exit: 0 bytes in 0 blocks
+==2765002==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2765002== 
+==2765002== All heap blocks were freed -- no leaks are possible
+==2765002== 
+==2765002== For lists of detected and suppressed errors, rerun with: -s
+==2765002== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/C_multiseg_sH.txt b/p2-load/tests/valgrind/C_multiseg_sH.txt
new file mode 100644
index 0000000..963baed
--- /dev/null
+++ b/p2-load/tests/valgrind/C_multiseg_sH.txt
@@ -0,0 +1,25 @@
+==2764979== Memcheck, a memory error detector
+==2764979== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2764979== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2764979== Command: ../y86 -sH inputs/multiseg.o
+==2764979== 
+01 00 00 01 10 00 04 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 4 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0060    0x0015    0x0100    CODE      R X
+  01       0x0075    0x000b    0x0200    DATA      RW 
+  02       0x0080    0x0015    0x0300    CODE      R X
+  03       0x0090    0x000b    0x0200    DATA      RW 
+==2764979== 
+==2764979== HEAP SUMMARY:
+==2764979==     in use at exit: 0 bytes in 0 blocks
+==2764979==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2764979== 
+==2764979== All heap blocks were freed -- no leaks are possible
+==2764979== 
+==2764979== For lists of detected and suppressed errors, rerun with: -s
+==2764979== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/C_simple_H.txt b/p2-load/tests/valgrind/C_simple_H.txt
new file mode 100644
index 0000000..59a0f42
--- /dev/null
+++ b/p2-load/tests/valgrind/C_simple_H.txt
@@ -0,0 +1,20 @@
+==2764926== Memcheck, a memory error detector
+==2764926== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2764926== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2764926== Command: ../y86 -H inputs/simple.o
+==2764926== 
+01 00 00 01 10 00 02 00  58 00 70 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 2 program headers, starting at offset 16 (0x10)
+There is a symbol table starting at offset 88 (0x58)
+There is a string table starting at offset 112 (0x70)
+==2764926== 
+==2764926== HEAP SUMMARY:
+==2764926==     in use at exit: 0 bytes in 0 blocks
+==2764926==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2764926== 
+==2764926== All heap blocks were freed -- no leaks are possible
+==2764926== 
+==2764926== For lists of detected and suppressed errors, rerun with: -s
+==2764926== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/C_simple_s.txt b/p2-load/tests/valgrind/C_simple_s.txt
new file mode 100644
index 0000000..7f01334
--- /dev/null
+++ b/p2-load/tests/valgrind/C_simple_s.txt
@@ -0,0 +1,17 @@
+==2764935== Memcheck, a memory error detector
+==2764935== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2764935== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2764935== Command: ../y86 -s inputs/simple.o
+==2764935== 
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0038    0x0015    0x0100    CODE      R X
+  01       0x004d    0x000b    0x0200    DATA      RW 
+==2764935== 
+==2764935== HEAP SUMMARY:
+==2764935==     in use at exit: 0 bytes in 0 blocks
+==2764935==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2764935== 
+==2764935== All heap blocks were freed -- no leaks are possible
+==2764935== 
+==2764935== For lists of detected and suppressed errors, rerun with: -s
+==2764935== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/tests/valgrind/C_stripped_sM.txt b/p2-load/tests/valgrind/C_stripped_sM.txt
new file mode 100644
index 0000000..3aedda9
--- /dev/null
+++ b/p2-load/tests/valgrind/C_stripped_sM.txt
@@ -0,0 +1,274 @@
+==2765036== Memcheck, a memory error detector
+==2765036== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2765036== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2765036== Command: ../y86 -sM inputs/stripped.o
+==2765036== 
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0038    0x0015    0x0100    CODE      R X
+  01       0x004d    0x000b    0x0200    DATA      RW 
+Contents of memory from 0000 to 1000:
+  0000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  aa bb cc dd 00 00 00 dd  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==2765036== 
+==2765036== HEAP SUMMARY:
+==2765036==     in use at exit: 0 bytes in 0 blocks
+==2765036==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2765036== 
+==2765036== All heap blocks were freed -- no leaks are possible
+==2765036== 
+==2765036== For lists of detected and suppressed errors, rerun with: -s
+==2765036== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p2-load/y86 b/p2-load/y86
new file mode 100644
index 0000000..fc8ef38
Binary files /dev/null and b/p2-load/y86 differ
diff --git a/p2-load/y86.h b/p2-load/y86.h
new file mode 100644
index 0000000..a55a4cb
--- /dev/null
+++ b/p2-load/y86.h
@@ -0,0 +1,12 @@
+#ifndef __CS261_Y86__
+#define __CS261_Y86__
+
+#include <stdint.h>
+
+#define VADDRBITS 12
+#define MEMSIZE (1 << VADDRBITS)
+
+/* type declarations */
+typedef uint8_t  byte_t;        // byte
+
+#endif
diff --git a/p3-disas/.clang-format b/p3-disas/.clang-format
new file mode 100644
index 0000000..62fb300
--- /dev/null
+++ b/p3-disas/.clang-format
@@ -0,0 +1,7 @@
+BasedOnStyle: LLVM
+BreakBeforeBraces: Attach
+IndentCaseLabels: true
+IndentWidth: 4
+TabWidth: 4
+UseTab: Never
+ColumnLimit: 80
\ No newline at end of file
diff --git a/p3-disas/Makefile b/p3-disas/Makefile
new file mode 100644
index 0000000..1080ffc
--- /dev/null
+++ b/p3-disas/Makefile
@@ -0,0 +1,51 @@
+#
+# Simple Makefile
+# Mike Lam, James Madison University, August 2016
+#
+# This makefile builds a simple application that contains a main module
+# (specified by the EXE variable) and a predefined list of additional modules
+# (specified by the MODS variable). If there are any external library
+# dependencies (e.g., the math library, "-lm"), list them in the LIBS variable.
+# If there are any precompiled object files, list them in the OBJS variable.
+#
+# By default, this makefile will build the project with debugging symbols and
+# without optimization. To change this, edit or remove the "-g" and "-O0"
+# options in CFLAGS and LDFLAGS accordingly.
+#
+# By default, this makefile build the application using the GNU C compiler,
+# adhering to the C99 standard with all warnings enabled.
+
+
+# application-specific settings and run target
+
+EXE=y86
+MODS=p3-disas.o
+OBJS=p1-check.o p2-load.o
+LIBS=
+
+default: $(EXE)
+
+test: $(EXE)
+	TPREFIX=tests/ make -C tests test
+
+# compiler/linker settings
+
+CC=gcc
+CFLAGS=-g -O0 -Wall --std=c99 -pedantic
+LDFLAGS=-g -O0
+
+
+# build targets
+
+$(EXE): main.o $(MODS) $(OBJS)
+	$(CC) $(LDFLAGS) -o $(EXE) $^ $(LIBS)
+
+%.o: %.c
+	$(CC) -c $(CFLAGS) $<
+
+clean:
+	rm -f $(EXE) main.o $(MODS)
+	make -C tests clean
+
+.PHONY: default clean
+
diff --git a/p3-disas/elf.h b/p3-disas/elf.h
new file mode 100644
index 0000000..92d56bf
--- /dev/null
+++ b/p3-disas/elf.h
@@ -0,0 +1,98 @@
+#ifndef __CS261_ELF__
+#define __CS261_ELF__
+
+#include <stdio.h>
+#include <stdint.h>
+
+#include "y86.h"
+
+/*
+   Mini-ELF file format (byte 0 = first byte of the file)
+   +----------------------------------------------+
+   | header (elf_hdr_t) - 16 bytes                |
+   +----------------------------------------------+
+   | program headers (elf_phdr_t) - 20 bytes each |
+   +----------------------------------------------+
+   | program segments - variable length of bytes  |
+   +----------------------------------------------+
+   | symbol table - each entry is 4 bytes each    |
+   +----------------------------------------------+
+   | string table - variable length of strings    |
+   +----------------------------------------------+
+
+   ELF header structure:
+   +----------------------------------------------------------------------------+
+   |  0   1  |  2   3  |  4   5  |  6   7  |  8   9  | 10  11  | 12  13  14  15 |
+   | version | entry   | phdr    | numphdr | symtab  | strtab  | magic number   |
+   +----------------------------------------------------------------------------+
+
+   Sample ELF header (all entries in hex, format is little endian):
+   +----------------------------------------------------------------------------+
+   |  01  00 |  00  01 |  10  00 |  05  00 |  ac  00 |  c2  00 | 45  4c  46  00 |
+   | version | entry   | phdr    | numphdr | symtab  | strtab  | magic number   |
+   +----------------------------------------------------------------------------+
+
+   version = 0x0001     entry = 0x0100      phdr = 0x0010     numphdr = 0x0005
+   symtab = 0x00ac      strtab = 0x00c2     magic = "ELF\0"
+
+   Interpretation:
+   This file was created under version 1 of this format. When the program is
+   loaded into memory, the instruct at address 0x100 (256) will be executed
+   first. The first program header (which indicates segments in this file)
+   starts at offset 0x10 (16) into the file, and there are 5 program headers
+   total. The symbol table starts at offset 0xac (172) into this file, and the
+   string table starts at offset 0xc2 (194). The magic number is the string
+   "ELF\0" and is for error checking.
+*/
+typedef struct __attribute__((__packed__)) elf {
+    uint16_t e_version;     /* version should be 1 */
+    uint16_t e_entry;       /* entry point of program */
+    uint16_t e_phdr_start;  /* start of program headers */
+    uint16_t e_num_phdr;    /* number of program headers */
+    uint16_t e_symtab;      /* start of symbol table */
+    uint16_t e_strtab;      /* start of string table */
+    uint32_t magic;         /* ELF */
+} elf_hdr_t;
+
+typedef enum {
+    DATA, CODE, STACK, HEAP, UNKNOWN
+} elf_segtype_t;
+
+/*
+   ELF program header structure (describing segments):
+   +-----------------------------------------------------------------------+
+   |  0  1  2  3 |  4  5  6  7 |  8  9 10 11 | 12 13 | 14 15 | 16 17 18 19 |
+   | offset      | size        | virt addr   | type  | flags | magic number|
+   +-----------------------------------------------------------------------+
+
+   Flags store segment permissions as RWX (read/write/execute) in binary.
+     Examples:      100 (binary) = 4 (decimal/hex) = read-only    (R  )
+                    101 (binary) = 5 (decimal/hex) = read-execute (R X)
+                    110 (binary) = 6 (decimal/hex) = read-write   (RW )
+
+   Sample ELF program header (all entries in hex, format is little endian):
+   +-----------------------------------------------------------------------+
+   | 74 00 00 00 | 12 00 00 00 | 00 01 00 00 | 01 00 | 05 00 | ef be ad de |
+   | offset      | size        | virt addr   | type  | flags | magic number|
+   +-----------------------------------------------------------------------+
+
+   offset = 0x00000074    size = 0x00000012           virt addr = 0x00000100
+   type = 0x0001 (CODE)   flags = 0x0005 (RX)         magic = 0xDEADBEEF
+
+   Interpretation:
+   The segment starts at offset 0x74 (116) in the file, and it is 0x12 (18)
+   bytes in size. It will be loaded into memory address 0x100 (256). Since it
+   is a CODE segment, it needs to have read-execute (RX) permissions attached.
+   The magic number is the value 0xDEADBEEF and is for error checking.
+*/
+typedef struct __attribute__((__packed__)) elf_phdr {
+    uint32_t p_offset;      /* beginning of the segment in the file (in bytes) */
+    uint32_t p_size;        /* number of bytes in the segment */
+    uint32_t p_vaddr;       /* intended virtual address of the beginning of
+                               the segment in a running program's memory */
+    uint16_t p_type;        /* segment type (e.g., code, data, etc.) */
+    uint16_t p_flags;       /* permissions flags */
+    uint32_t magic;         /* DEADBEEF */
+} elf_phdr_t;
+
+#endif
diff --git a/p3-disas/main.c b/p3-disas/main.c
new file mode 100644
index 0000000..ff0c03b
--- /dev/null
+++ b/p3-disas/main.c
@@ -0,0 +1,170 @@
+/*
+ * CS 261: Main driver
+ *
+ * Name: Nicholas Tamassia
+ *
+ * This code was developed in compliance with the JMU Honor code.
+ */
+
+#include "p1-check.h"
+#include "p2-load.h"
+#include "p3-disas.h"
+
+/*
+ * helper function for printing help text
+ */
+void usage(char **argv) {
+    printf("Usage: %s <option(s)> mini-elf-file\n", argv[0]);
+    printf(" Options are:\n");
+    printf("  -h      Display usage\n");
+    printf("  -H      Show the Mini-ELF header\n");
+    printf("  -a      Show all with brief memory\n");
+    printf("  -f      Show all with full memory\n");
+    printf("  -s      Show the program headers\n");
+    printf("  -m      Show the memory contents (brief)\n");
+    printf("  -M      Show the memory contents (full)\n");
+    printf("  -d      Disassemble code contents\n");
+    printf("  -D      Disassemble data contents\n");
+}
+
+void exit_file_error(FILE *file) {
+    if (file) {
+        fclose(file);
+    }
+
+    printf("Failed to read file\n");
+    exit(EXIT_FAILURE);
+}
+
+int main(int argc, char **argv) {
+    int c;
+    bool show_elf_header = false;
+    bool show_program_header = false;
+    bool show_memory_brief = false;
+    bool show_memory_full = false;
+    bool show_code = false;
+    bool show_data = false;
+
+    while ((c = getopt(argc, argv, "hHafsmMdD")) != -1) {
+        switch (c) {
+            case 'h':
+                usage(argv);
+                return EXIT_SUCCESS;
+            case 'H':
+                show_elf_header = true;
+                break;
+            case 'a':
+                show_elf_header = true;
+                show_program_header = true;
+                show_memory_brief = true;
+                break;
+            case 'f':
+                show_elf_header = true;
+                show_program_header = true;
+                show_memory_full = true;
+                break;
+            case 's':
+                show_program_header = true;
+                break;
+            case 'm':
+                show_memory_brief = true;
+                break;
+            case 'M':
+                show_memory_full = true;
+                break;
+            case 'd':
+                show_code = true;
+                break;
+            case 'D':
+                show_data = true;
+                break;
+            default:
+                usage(argv);
+                return EXIT_FAILURE;
+        }
+    }
+
+    /* File path was not the last argument */
+    bool invalid_arguments = optind != argc - 1;
+    /* Attempted to ask for brief and full memory at same time */
+    bool memory_flag_conflict = show_memory_brief && show_memory_full;
+
+    if (invalid_arguments || memory_flag_conflict) {
+        usage(argv);
+        return EXIT_FAILURE;
+    }
+
+    elf_hdr_t header = {0};
+    FILE *header_file = fopen(argv[optind], "r");
+
+    /* Read contents of header_file into header */
+    if (!read_header(header_file, &header)) {
+        exit_file_error(header_file);
+    }
+
+    if (show_elf_header) {
+        dump_header(&header);
+    }
+
+    elf_phdr_t phdrs[header.e_num_phdr];
+    memset(phdrs, 0, sizeof(phdrs));
+
+    /* Read program headers into phdrs array */
+    for (int i = 0; i < header.e_num_phdr; i++) {
+        uint16_t offset = header.e_phdr_start + i * sizeof(elf_phdr_t);
+        if (!read_phdr(header_file, offset, &phdrs[i])) {
+            exit_file_error(header_file);
+        }
+    }
+
+    if (show_program_header) {
+        dump_phdrs(header.e_num_phdr, phdrs);
+    }
+
+    byte_t memory[MEMSIZE];
+    memset(memory, 0, MEMSIZE);
+
+    /* Read memory segments into memory array */
+    for (int i = 0; i < header.e_num_phdr; i++) {
+        if (!load_segment(header_file, memory, &phdrs[i])) {
+            exit_file_error(header_file);
+        }
+    }
+
+    fclose(header_file);
+
+    if (show_memory_brief) {
+        for (int i = 0; i < header.e_num_phdr; i++) {
+            uint32_t start = phdrs[i].p_vaddr;
+            uint32_t end = start + phdrs[i].p_size;
+
+            dump_memory(memory, start, end);
+        }
+    } else if (show_memory_full) {
+        dump_memory(memory, 0, MEMSIZE);
+    }
+
+    if (show_code) {
+        printf("Disassembly of executable contents:\n");
+
+        for (int i = 0; i < header.e_num_phdr; i++) {
+            if (phdrs[i].p_type == CODE) {
+                disassemble_code(memory, &phdrs[i], &header);
+            }
+        }
+    }
+
+    if (show_data) {
+        printf("Disassembly of data contents:\n");
+
+        for (int i = 0; i < header.e_num_phdr; i++) {
+            if (phdrs[i].p_type == DATA && phdrs[i].p_flags == 4) {
+                disassemble_rodata(memory, &phdrs[i]);
+            } else if (phdrs[i].p_type == DATA) {
+                disassemble_data(memory, &phdrs[i]);
+            }
+        }
+    }
+
+    return EXIT_SUCCESS;
+}
diff --git a/p3-disas/main.o b/p3-disas/main.o
new file mode 100644
index 0000000..df83110
Binary files /dev/null and b/p3-disas/main.o differ
diff --git a/p3-disas/p1-check.h b/p3-disas/p1-check.h
new file mode 100644
index 0000000..5ce84e9
--- /dev/null
+++ b/p3-disas/p1-check.h
@@ -0,0 +1,29 @@
+#ifndef __CS261_P1__
+#define __CS261_P1__
+
+#include <getopt.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "elf.h"
+
+/**
+ * @brief Load a Mini-ELF header from an open file stream
+ *
+ * @param file File stream to use for input
+ * @param hdr Pointer to region where the Mini-ELF header should be loaded
+ * @returns True if the header was successfully loaded and verified, false otherwise
+ */
+bool read_header (FILE *file, elf_hdr_t *hdr);
+
+/**
+ * @brief Print Mini-ELF header information to standard out
+ *
+ * @param hdr Header with info to print
+ */
+void dump_header (elf_hdr_t *hdr);
+
+#endif
diff --git a/p3-disas/p1-check.o b/p3-disas/p1-check.o
new file mode 100644
index 0000000..a943a48
Binary files /dev/null and b/p3-disas/p1-check.o differ
diff --git a/p3-disas/p2-load.h b/p3-disas/p2-load.h
new file mode 100644
index 0000000..e15cfa7
--- /dev/null
+++ b/p3-disas/p2-load.h
@@ -0,0 +1,52 @@
+#ifndef __CS261_P2__
+#define __CS261_P2__
+
+#include <getopt.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "elf.h"
+#include "y86.h"
+
+/**
+ * @brief Load a Mini-ELF program header from an open file stream
+ *
+ * @param file File stream to use for input
+ * @param offset Byte offset in file where the program header is located
+ * @param phdr Pointer to memory where the Mini-ELF program header should be loaded
+ * @returns True if the header was successfully loaded and verified, false otherwise
+ */
+bool read_phdr (FILE *file, uint16_t offset, elf_phdr_t *phdr);
+
+/**
+ * @brief Load a Mini-ELF program segment from an open file stream
+ *
+ * @param file File stream to use for input
+ * @param memory Pointer to the beginning of the Y86 address space into which
+ * the segment should be loaded
+ * @param phdr Pointer to the program header for the segment that should be loaded
+ * @returns True if the segment was successfully loaded, false otherwise
+ */
+bool load_segment (FILE *file, byte_t *memory, elf_phdr_t *phdr);
+
+/**
+ * @brief Print Mini-ELF program header information to standard out
+ *
+ * @param numphdrs Number of program headers to print
+ * @param phdrs Pointer to array of program headers with info to print
+ */
+void dump_phdrs (uint16_t numphdrs, elf_phdr_t *phdrs);
+
+/**
+ * @brief Print a portion of a Y86 address space
+ *
+ * @param memory Pointer to the beginning of the Y86 address space
+ * @param start Byte offset where printing should begin
+ * @param end Byte offset where printing should end
+ */
+void dump_memory (byte_t *memory, uint16_t start, uint16_t end);
+
+#endif
diff --git a/p3-disas/p2-load.o b/p3-disas/p2-load.o
new file mode 100644
index 0000000..657b810
Binary files /dev/null and b/p3-disas/p2-load.o differ
diff --git a/p3-disas/p3-disas.c b/p3-disas/p3-disas.c
new file mode 100644
index 0000000..606be53
--- /dev/null
+++ b/p3-disas/p3-disas.c
@@ -0,0 +1,574 @@
+/*
+ * CS 261 PA3: Mini-ELF disassembler
+ *
+ * Name: Nicholas Tamassia
+ *
+ * This code was developed in compliance with the JMU Honor code.
+ */
+
+#include "p3-disas.h"
+
+/**********************************************************************
+ *                         REQUIRED FUNCTIONS
+ *********************************************************************/
+
+bool has_register_byte(y86_inst_t ins);
+
+bool has_register_byte(y86_inst_t ins) {
+    switch (ins.icode) {
+        case CMOV:
+        case IRMOVQ:
+        case RMMOVQ:
+        case MRMOVQ:
+        case OPQ:
+        case PUSHQ:
+        case POPQ:
+            return true;
+        default:
+            return false;
+    }
+}
+
+bool has_valc_bytes(y86_inst_t ins);
+
+bool has_valc_bytes(y86_inst_t ins) {
+    switch (ins.icode) {
+        case IRMOVQ:
+        case RMMOVQ:
+        case MRMOVQ:
+        case JUMP:
+        case CALL:
+            return true;
+        default:
+            return false;
+    }
+}
+
+void validate_opcode(y86_inst_t *ins, byte_t *current_byte);
+
+void validate_opcode(y86_inst_t *ins, byte_t *current_byte) {
+    if (ins == NULL || current_byte == NULL) {
+        return;
+    }
+
+    y86_icode_t opcode_high = *current_byte >> 4;
+    byte_t opcode_low = *current_byte & 0xF;
+    ins->icode = opcode_high;
+
+    switch (ins->icode) {
+        case CMOV:
+            if (opcode_low >= BADCMOV) {
+                ins->icode = INVALID;
+            }
+            ins->ifun.cmov = opcode_low;
+            break;
+
+        case OPQ:
+            if (opcode_low >= BADOP) {
+                ins->icode = INVALID;
+            }
+            ins->ifun.op = opcode_low;
+            break;
+
+        case JUMP:
+            if (opcode_low >= BADJUMP) {
+                ins->icode = INVALID;
+            }
+            ins->ifun.jump = opcode_low;
+            break;
+
+        case IOTRAP:
+            if (opcode_low >= BADTRAP) {
+                ins->icode = INVALID;
+            }
+            ins->ifun.trap = opcode_low;
+            break;
+
+        case HALT:
+        case NOP:
+        case IRMOVQ:
+        case RMMOVQ:
+        case MRMOVQ:
+        case CALL:
+        case RET:
+        case PUSHQ:
+        case POPQ:
+            if (opcode_low != 0x0) {
+                ins->icode = INVALID;
+            }
+            ins->ifun.b = opcode_low;
+            break;
+
+        default:
+            ins->icode = INVALID;
+            break;
+    }
+}
+
+void validate_registers(y86_inst_t *ins, byte_t *current_byte);
+
+void validate_registers(y86_inst_t *ins, byte_t *current_byte) {
+    if (ins == NULL || current_byte == NULL) {
+        return;
+    }
+
+    ins->ra = *current_byte >> 4;
+    ins->rb = *current_byte & 0xF;
+
+    switch (ins->icode) {
+        case IRMOVQ:
+            if (ins->ra != NOREG || ins->rb == NOREG) {
+                ins->icode = INVALID;
+            }
+            break;
+
+        case PUSHQ:
+        case POPQ:
+            if (ins->ra == NOREG || ins->rb != NOREG) {
+                ins->icode = INVALID;
+            }
+            break;
+
+        case RMMOVQ:
+        case MRMOVQ:
+            if (ins->ra == NOREG) {
+                ins->icode = INVALID;
+            }
+            break;
+
+        case CMOV:
+        case OPQ:
+            if (ins->ra == NOREG || ins->rb == NOREG) {
+                ins->icode = INVALID;
+            }
+            break;
+        default:
+            break;
+    }
+}
+
+void assign_valc(y86_inst_t *ins, byte_t *current_byte);
+
+void assign_valc(y86_inst_t *ins, byte_t *current_byte) {
+    if (ins == NULL || current_byte == NULL) {
+        return;
+    }
+
+    uint64_t valc = 0;
+    for (int i = 0; i < 8; i++) {
+        valc |= (uint64_t) * (current_byte + i) << (8 * i);
+    }
+
+    switch (ins->icode) {
+        case IRMOVQ:
+            ins->valC.v = valc;
+            break;
+        case RMMOVQ:
+        case MRMOVQ:
+            ins->valC.d = valc;
+            break;
+        case JUMP:
+        case CALL:
+            ins->valC.dest = valc;
+            break;
+        default:
+            break;
+    }
+}
+
+y86_inst_t fetch(y86_t *cpu, byte_t *memory) {
+    y86_inst_t ins = {0};
+
+    if (cpu == NULL || memory == NULL) {
+        ins.icode = INVALID;
+        return ins;
+    }
+
+    if (cpu->pc > MEMSIZE - 10) {
+        ins.icode = INVALID;
+        cpu->stat = ADR;
+        return ins;
+    }
+
+    byte_t *current_byte = &memory[cpu->pc];
+
+    validate_opcode(&ins, current_byte);
+    if (ins.icode == INVALID) {
+        cpu->stat = INS;
+        return ins;
+    }
+
+    current_byte++;
+
+    if (has_register_byte(ins)) {
+        validate_registers(&ins, current_byte);
+
+        if (ins.icode == INVALID) {
+            cpu->stat = INS;
+            return ins;
+        }
+
+        current_byte++;
+    }
+
+    if (has_valc_bytes(ins)) {
+        assign_valc(&ins, current_byte);
+        current_byte += 8;
+    }
+
+    ins.valP = current_byte - memory;
+
+    if (ins.icode == HALT) {
+        cpu->stat = HLT;
+    } else {
+        cpu->stat = AOK;
+    }
+
+    return ins;
+}
+
+/**********************************************************************
+ *                         OPTIONAL FUNCTIONS
+ *********************************************************************/
+
+void print_register(y86_regnum_t y86_register);
+
+void print_register(y86_regnum_t y86_register) {
+    switch (y86_register) {
+        case RAX:
+            printf("%%rax");
+            break;
+        case RCX:
+            printf("%%rcx");
+            break;
+        case RDX:
+            printf("%%rdx");
+            break;
+        case RBX:
+            printf("%%rbx");
+            break;
+        case RSP:
+            printf("%%rsp");
+            break;
+        case RBP:
+            printf("%%rbp");
+            break;
+        case RSI:
+            printf("%%rsi");
+            break;
+        case RDI:
+            printf("%%rdi");
+            break;
+        case R8:
+        case R9:
+        case R10:
+        case R11:
+        case R12:
+        case R13:
+        case R14:
+            printf("%%r%d", y86_register);
+            break;
+        case NOREG:
+            break;
+    }
+}
+
+void print_cmov(y86_cmov_t cmov);
+
+void print_cmov(y86_cmov_t cmov) {
+    switch (cmov) {
+        case RRMOVQ:
+            printf("rrmovq");
+            break;
+        case CMOVLE:
+            printf("cmovle");
+            break;
+        case CMOVL:
+            printf("cmovl");
+            break;
+        case CMOVE:
+            printf("cmove");
+            break;
+        case CMOVNE:
+            printf("cmovne");
+            break;
+        case CMOVGE:
+            printf("cmovge");
+            break;
+        case CMOVG:
+            printf("cmovg");
+            break;
+        case BADCMOV:
+            break;
+    }
+}
+
+void print_opq(y86_op_t opq);
+
+void print_opq(y86_op_t opq) {
+    switch (opq) {
+        case ADD:
+            printf("addq");
+            break;
+        case SUB:
+            printf("subq");
+            break;
+        case AND:
+            printf("andq");
+            break;
+        case XOR:
+            printf("xorq");
+            break;
+        case BADOP:
+            break;
+    }
+}
+
+void print_jump(y86_jump_t jump);
+
+void print_jump(y86_jump_t jump) {
+    switch (jump) {
+        case JMP:
+            printf("jmp");
+            break;
+        case JLE:
+            printf("jle");
+            break;
+        case JL:
+            printf("jl");
+            break;
+        case JE:
+            printf("je");
+            break;
+        case JNE:
+            printf("jne");
+            break;
+        case JGE:
+            printf("jge");
+            break;
+        case JG:
+            printf("jg");
+            break;
+        case BADJUMP:
+            break;
+    }
+}
+
+void disassemble(y86_inst_t *inst) {
+    if (inst == NULL) {
+        return;
+    }
+
+    switch (inst->icode) {
+        case HALT:
+            printf("halt");
+            break;
+        case NOP:
+            printf("nop");
+            break;
+        case CMOV:
+            print_cmov(inst->ifun.cmov);
+            printf(" ");
+            print_register(inst->ra);
+            printf(", ");
+            print_register(inst->rb);
+            break;
+        case IRMOVQ:
+            printf("irmovq 0x%lx, ", inst->valC.v);
+            print_register(inst->rb);
+            break;
+        case RMMOVQ:
+            printf("rmmovq ");
+            print_register(inst->ra);
+            printf(", ");
+            printf("0x%lx", inst->valC.d);
+            if (inst->rb != NOREG) {
+                printf("(");
+                print_register(inst->rb);
+                printf(")");
+            }
+            break;
+        case MRMOVQ:
+            printf("mrmovq 0x%lx", inst->valC.d);
+            if (inst->rb != NOREG) {
+                printf("(");
+                print_register(inst->rb);
+                printf(")");
+            }
+            printf(", ");
+            print_register(inst->ra);
+            break;
+        case OPQ:
+            print_opq(inst->ifun.op);
+            printf(" ");
+            print_register(inst->ra);
+            printf(", ");
+            print_register(inst->rb);
+            break;
+        case JUMP:
+            print_jump(inst->ifun.jump);
+            printf(" 0x%lx", inst->valC.dest);
+            break;
+        case CALL:
+            printf("call 0x%lx", inst->valC.dest);
+            break;
+        case RET:
+            printf("ret");
+            break;
+        case PUSHQ:
+            printf("pushq ");
+            print_register(inst->ra);
+            break;
+        case POPQ:
+            printf("popq ");
+            print_register(inst->ra);
+            break;
+        case IOTRAP:
+            printf("iotrap %d", inst->ifun.trap);
+            break;
+        default:
+            break;
+    }
+}
+
+void disassemble_code(byte_t *memory, elf_phdr_t *phdr, elf_hdr_t *hdr) {
+    if (memory == NULL || phdr == NULL || hdr == NULL) {
+        printf("Failed to disassemble code\n");
+        return;
+    }
+
+    y86_t cpu = {0};
+    y86_inst_t ins = {0};
+    uint32_t p_vaddr_end = phdr->p_vaddr + phdr->p_size;
+    cpu.pc = phdr->p_vaddr;
+
+    printf("  0x%03lx:%*s| .pos 0x%03lx code\n", cpu.pc, 31, "", cpu.pc);
+
+    while (cpu.pc < p_vaddr_end) {
+        if (cpu.pc == hdr->e_entry) {
+            printf("  0x%03lx:%*s| _start:\n", cpu.pc, 31, "");
+        }
+
+        ins = fetch(&cpu, memory);
+
+        if (ins.icode == INVALID) {
+            printf("Invalid opcode: 0x%02x\n", memory[cpu.pc]);
+            break;
+        }
+
+        printf("  0x%03lx: ", cpu.pc);
+
+        int bytes_printed = 1;
+        printf("%02x ", ins.icode << 4 | ins.ifun.b);
+
+        if (has_register_byte(ins)) {
+            printf("%02x ", (ins.ra << 4 | ins.rb));
+            bytes_printed++;
+        }
+
+        if (has_valc_bytes(ins)) {
+            for (int i = 0; i < 8; i++) {
+                printf("%02lx ", (ins.valC.d >> (8 * i)) & 0xFF);
+            }
+
+            bytes_printed += 8;
+        }
+
+        /* Print #x spaces to align the "|" */
+        printf("%*s|   ", 30 - 3 * bytes_printed, "");
+        disassemble(&ins);
+        printf("\n");
+
+        cpu.pc = ins.valP;
+    }
+
+    printf("\n");
+}
+
+void disassemble_data(byte_t *memory, elf_phdr_t *phdr) {
+    if (memory == NULL || phdr == NULL) {
+        printf("Failed to disassemble data\n");
+        return;
+    }
+
+    uint32_t pc = phdr->p_vaddr;
+    uint32_t p_vaddr_end = phdr->p_vaddr + phdr->p_size;
+
+    printf("  0x%03x:%*s| .pos 0x%03x data\n", pc, 31, "", pc);
+
+    while (pc < p_vaddr_end) {
+        uint64_t byte_string = 0;
+
+        printf("  0x%03x: ", pc);
+        for (int i = 0; i < 8; i++) {
+            byte_string |= (uint64_t)(memory[pc + i]) << (8 * i);
+            printf("%02x ", memory[pc + i]);
+        }
+        printf("      |   .quad 0x%lx\n", byte_string);
+
+        pc += 8;
+    }
+
+    printf("\n");
+}
+
+void disassemble_rodata(byte_t *memory, elf_phdr_t *phdr) {
+    if (memory == NULL || phdr == NULL) {
+        printf("Failed to disassemble read-only data\n");
+        return;
+    }
+
+    uint32_t pc = phdr->p_vaddr;
+    uint32_t p_vaddr_end = phdr->p_vaddr + phdr->p_size;
+
+    printf("  0x%03x:%*s| .pos 0x%03x rodata\n", pc, 31, "", pc);
+
+    uint32_t string_address = pc; /* Address of current .string */
+    uint32_t char_count = 0;
+
+    while (pc < p_vaddr_end) {
+        bool on_line_start = (char_count + 1) % 10 == 1;
+        bool on_null_terminator = memory[pc] == 0x00;
+        bool break_line = on_null_terminator || (char_count + 1) % 10 == 0;
+
+        if (on_line_start) {
+            printf("  0x%03x: ", pc);
+        }
+
+        printf("%02x ", memory[pc]);
+
+        /* If reached end of line, print #x spaces to align the "|" */
+        if (break_line) {
+            int spaces = 27 - (char_count % 10) * 3;
+            printf("%*s| ", spaces, "");
+        }
+
+        /* Prints out the full string if reached the end of the first line */
+        if (break_line && char_count <= 9) {
+            byte_t *current_byte = &memory[string_address];
+
+            printf("  .string \"");
+            while (*current_byte != 0x00) {
+                printf("%c", *current_byte);
+                current_byte++;
+            }
+            printf("\"");
+        }
+
+        if (break_line) {
+            printf("\n");
+        }
+
+        /* Reset char count to indicate new word on null terminator */
+        if (on_null_terminator) {
+            string_address = pc + 1;
+            char_count = 0;
+        } else {
+            char_count++;
+        }
+
+        pc++;
+    }
+
+    printf("\n");
+}
diff --git a/p3-disas/p3-disas.h b/p3-disas/p3-disas.h
new file mode 100644
index 0000000..116ac49
--- /dev/null
+++ b/p3-disas/p3-disas.h
@@ -0,0 +1,55 @@
+#ifndef __CS261_P3__
+#define __CS261_P3__
+
+#include <getopt.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "elf.h"
+#include "y86.h"
+
+/**
+ * @brief Load a Y86 instruction from memory
+ *
+ * @param cpu Pointer to Y86 CPU structure with the PC address to be loaded
+ * @param memory Pointer to the beginning of the Y86 address space
+ * @returns Populated Y86 instruction structure
+ */
+y86_inst_t fetch (y86_t *cpu, byte_t *memory);
+
+/**
+ * @brief Print the disassembly of a Y86 instruction to standard out
+ *
+ * @param inst Pointer to Y86 instruction structure to be printed
+ */
+void disassemble (y86_inst_t *inst);
+
+/**
+ * @brief Print the disassembly of a Y86 code segment
+ *
+ * @param memory Pointer to the beginning of the Y86 address space
+ * @param phdr Program header of segment to be printed
+ * @param hdr File header (needed to detect the entry point)
+ */
+void disassemble_code   (byte_t *memory, elf_phdr_t *phdr, elf_hdr_t *hdr);
+
+/**
+ * @brief Print the disassembly of a Y86 read/write data segment
+ *
+ * @param memory Pointer to the beginning of the Y86 address space
+ * @param phdr Program header of segment to be printed
+ */
+void disassemble_data   (byte_t *memory, elf_phdr_t *phdr);
+
+/**
+ * @brief Print the disassembly of a Y86 read-only data segment
+ *
+ * @param memory Pointer to the beginning of the Y86 address space
+ * @param phdr Program header of segment to be printed
+ */
+void disassemble_rodata (byte_t *memory, elf_phdr_t *phdr);
+
+#endif
diff --git a/p3-disas/p3-disas.o b/p3-disas/p3-disas.o
new file mode 100644
index 0000000..9ffb45f
Binary files /dev/null and b/p3-disas/p3-disas.o differ
diff --git a/p3-disas/tests/Makefile b/p3-disas/tests/Makefile
new file mode 100644
index 0000000..cf0e4f5
--- /dev/null
+++ b/p3-disas/tests/Makefile
@@ -0,0 +1,81 @@
+#
+# Simple Test Makefile
+# Mike Lam, James Madison University, August 2016
+#
+# This version of the Makefile includes support for building a test suite. The
+# recommended framework is Check (http://check.sourceforge.net/). To build and
+# run the test suite, execute the "test" target. The test suite must be located
+# in a module called "testsuite". The MODS, LIBS, and OBJS variables work as
+# they do in the main Makefile.
+#
+# To change the default build target (which executes when you just type
+# "make"), change the right-hand side of the definition of the "default"
+# target.
+#
+# By default, this makefile will build the project with debugging symbols and
+# without optimization. To change this, edit or remove the "-g" and "-O0"
+# options in CFLAGS and LDFLAGS accordingly.
+#
+# By default, this makefile build the application using the GNU C compiler,
+# adhering to the C99 standard with all warnings enabled.
+
+
+# application-specific settings and run target
+
+EXE=../y86
+TEST=testsuite
+MODS=public.o
+OBJS=../p1-check.o ../p2-load.o ../p3-disas.o private.o
+LIBS=
+
+UTESTOUT=utests.txt
+ITESTOUT=itests.txt
+
+default: $(TEST)
+
+$(EXE):
+	make -C ../
+
+test: utest itest
+	@echo "========================================"
+
+utest: $(EXE) $(TEST)
+	@echo "========================================"
+	@echo "             UNIT TESTS"
+	@./$(TEST) 2>/dev/null >$(UTESTOUT)
+	@cat $(UTESTOUT) | sed -n -e '/Checks/,$$p' | sed -e 's/^private.*:[EF]://g'
+
+itest: $(EXE)
+	@echo "========================================"
+	@echo "          INTEGRATION TESTS"
+	@./integration.sh | tee $(ITESTOUT)
+
+
+# compiler/linker settings
+
+CC=gcc
+CFLAGS=-g -O0 -Wall --std=c99 -pedantic
+LDFLAGS=-g -O0
+
+CFLAGS+=-I/opt/homebrew/include -Wno-gnu-zero-variadic-macro-arguments
+LDFLAGS+=-L/opt/homebrew/lib
+LIBS+=-lcheck -lm -lpthread
+
+ifeq ($(shell uname -s),Linux)
+	LIBS+=-lrt -lsubunit
+endif
+
+
+# build targets
+
+$(TEST): $(TEST).o $(MODS) $(OBJS)
+	$(CC) $(LDFLAGS) -o $(TEST) $^ $(LIBS)
+
+%.o: %.c
+	$(CC) -c $(CFLAGS) $<
+
+clean:
+	rm -rf $(TEST) $(TEST).o $(MODS) $(UTESTOUT) $(ITESTOUT) outputs valgrind
+
+.PHONY: default clean test unittest inttest
+
diff --git a/p3-disas/tests/expected/A_bad_filename.txt b/p3-disas/tests/expected/A_bad_filename.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p3-disas/tests/expected/A_bad_filename.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p3-disas/tests/expected/A_bad_no_elf.txt b/p3-disas/tests/expected/A_bad_no_elf.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p3-disas/tests/expected/A_bad_no_elf.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p3-disas/tests/expected/A_bad_phdr.txt b/p3-disas/tests/expected/A_bad_phdr.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p3-disas/tests/expected/A_bad_phdr.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p3-disas/tests/expected/A_bad_short_header.txt b/p3-disas/tests/expected/A_bad_short_header.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p3-disas/tests/expected/A_bad_short_header.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p3-disas/tests/expected/A_bad_short_phdr.txt b/p3-disas/tests/expected/A_bad_short_phdr.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p3-disas/tests/expected/A_bad_short_phdr.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p3-disas/tests/expected/A_data.txt b/p3-disas/tests/expected/A_data.txt
new file mode 100644
index 0000000..f2f788c
--- /dev/null
+++ b/p3-disas/tests/expected/A_data.txt
@@ -0,0 +1,6 @@
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 data
+  0x200: 88 77 66 55 44 33 22 11       |   .quad 0x1122334455667788
+  0x208: 78 56 34 12 00 00 00 00       |   .quad 0x12345678
+  0x210: 42 00 00 00 00 00 00 00       |   .quad 0x42
+
diff --git a/p3-disas/tests/expected/A_data_code.txt b/p3-disas/tests/expected/A_data_code.txt
new file mode 100644
index 0000000..02ccbc6
--- /dev/null
+++ b/p3-disas/tests/expected/A_data_code.txt
@@ -0,0 +1,5 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 00                            |   halt
+
diff --git a/p3-disas/tests/expected/A_extra_params.txt b/p3-disas/tests/expected/A_extra_params.txt
new file mode 100644
index 0000000..d8cdcea
--- /dev/null
+++ b/p3-disas/tests/expected/A_extra_params.txt
@@ -0,0 +1,11 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
diff --git a/p3-disas/tests/expected/A_interleaved.txt b/p3-disas/tests/expected/A_interleaved.txt
new file mode 100644
index 0000000..2a36f13
--- /dev/null
+++ b/p3-disas/tests/expected/A_interleaved.txt
@@ -0,0 +1,22 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 00                            |   halt
+
+  0x400:                               | .pos 0x400 code
+  0x400: 10                            |   nop
+  0x401: 00                            |   halt
+
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 data
+  0x200: 10 00 00 00 00 00 00 00       |   .quad 0x10
+
+  0x300:                               | .pos 0x300 rodata
+  0x300: 74 65 73 74 00                |   .string "test"
+
+  0x500:                               | .pos 0x500 data
+  0x500: 78 56 34 12 00 00 00 00       |   .quad 0x12345678
+
+  0x600:                               | .pos 0x600 rodata
+  0x600: 61 67 61 69 6e 00             |   .string "again"
+
diff --git a/p3-disas/tests/expected/A_invalid.txt b/p3-disas/tests/expected/A_invalid.txt
new file mode 100644
index 0000000..1fc31b4
--- /dev/null
+++ b/p3-disas/tests/expected/A_invalid.txt
@@ -0,0 +1,6 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 30 f3 0f 00 00 00 20 31 40 13 |   irmovq 0x134031200000000f, %rbx
+Invalid opcode: 0xfd
+
diff --git a/p3-disas/tests/expected/A_missing_file.txt b/p3-disas/tests/expected/A_missing_file.txt
new file mode 100644
index 0000000..d8cdcea
--- /dev/null
+++ b/p3-disas/tests/expected/A_missing_file.txt
@@ -0,0 +1,11 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
diff --git a/p3-disas/tests/expected/A_rodata.txt b/p3-disas/tests/expected/A_rodata.txt
new file mode 100644
index 0000000..6918389
--- /dev/null
+++ b/p3-disas/tests/expected/A_rodata.txt
@@ -0,0 +1,4 @@
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 rodata
+  0x200: 68 65 6c 6c 6f 00             |   .string "hello"
+
diff --git a/p3-disas/tests/expected/A_rodata_code.txt b/p3-disas/tests/expected/A_rodata_code.txt
new file mode 100644
index 0000000..02ccbc6
--- /dev/null
+++ b/p3-disas/tests/expected/A_rodata_code.txt
@@ -0,0 +1,5 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 00                            |   halt
+
diff --git a/p3-disas/tests/expected/A_rodata_long.txt b/p3-disas/tests/expected/A_rodata_long.txt
new file mode 100644
index 0000000..029f49b
--- /dev/null
+++ b/p3-disas/tests/expected/A_rodata_long.txt
@@ -0,0 +1,10 @@
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 rodata
+  0x200: 30 31 32 33 34 35 36 37 38 39 |   .string "0123456789"
+  0x20a: 00                            | 
+  0x20b: 68 65 6c 6c 6f 20 77 6f 72 6c |   .string "hello world"
+  0x215: 64 00                         | 
+  0x217: 61 62 63 64 65 66 67 68 69 6a |   .string "abcdefghijklmnopqrstuvwxyz"
+  0x221: 6b 6c 6d 6e 6f 70 71 72 73 74 | 
+  0x22b: 75 76 77 78 79 7a 00          | 
+
diff --git a/p3-disas/tests/expected/A_rodata_multi.txt b/p3-disas/tests/expected/A_rodata_multi.txt
new file mode 100644
index 0000000..2ebe064
--- /dev/null
+++ b/p3-disas/tests/expected/A_rodata_multi.txt
@@ -0,0 +1,6 @@
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 rodata
+  0x200: 66 6f 6f 00                   |   .string "foo"
+  0x204: 77 30 30 74 00                |   .string "w00t"
+  0x209: 75 70 20 64 6f 77 6e 00       |   .string "up down"
+
diff --git a/p3-disas/tests/expected/A_rodata_shakespeare.txt b/p3-disas/tests/expected/A_rodata_shakespeare.txt
new file mode 100644
index 0000000..553a78f
--- /dev/null
+++ b/p3-disas/tests/expected/A_rodata_shakespeare.txt
@@ -0,0 +1,20 @@
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 rodata
+  0x200: 54 6f 20 62 65 2c 20 6f 72 20 |   .string "To be, or not to be: that is the question"
+  0x20a: 6e 6f 74 20 74 6f 20 62 65 3a | 
+  0x214: 20 74 68 61 74 20 69 73 20 74 | 
+  0x21e: 68 65 20 71 75 65 73 74 69 6f | 
+  0x228: 6e 00                         | 
+  0x22a: 57 68 61 74 27 73 20 69 6e 20 |   .string "What's in a name? A rose by any other name would smell as sweet."
+  0x234: 61 20 6e 61 6d 65 3f 20 41 20 | 
+  0x23e: 72 6f 73 65 20 62 79 20 61 6e | 
+  0x248: 79 20 6f 74 68 65 72 20 6e 61 | 
+  0x252: 6d 65 20 77 6f 75 6c 64 20 73 | 
+  0x25c: 6d 65 6c 6c 20 61 73 20 73 77 | 
+  0x266: 65 65 74 2e 00                | 
+  0x26b: 42 75 74 2c 20 66 6f 72 20 6d |   .string "But, for my own part, it was Greek to me."
+  0x275: 79 20 6f 77 6e 20 70 61 72 74 | 
+  0x27f: 2c 20 69 74 20 77 61 73 20 47 | 
+  0x289: 72 65 65 6b 20 74 6f 20 6d 65 | 
+  0x293: 2e 00                         | 
+
diff --git a/p3-disas/tests/expected/A_unaligned1.txt b/p3-disas/tests/expected/A_unaligned1.txt
new file mode 100644
index 0000000..4f16bfd
--- /dev/null
+++ b/p3-disas/tests/expected/A_unaligned1.txt
@@ -0,0 +1,26 @@
+01 00 18 01 10 00 03 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x118
+There are 3 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x004c    0x0009    0x0000    CODE      R X
+  01       0x0055    0x0002    0x0118    CODE      R X
+  02       0x0057    0x0008    0x013a    DATA      RW 
+Contents of memory from 0000 to 0009:
+  0000  70 18 01 00 00 00 00 00  00
+Contents of memory from 0118 to 011a:
+  0110                           10 00
+Contents of memory from 013a to 0142:
+  0130                                 39 30 00 00 00 00
+  0140  00 00
+Disassembly of executable contents:
+  0x000:                               | .pos 0x000 code
+  0x000: 70 18 01 00 00 00 00 00 00    |   jmp 0x118
+
+  0x118:                               | .pos 0x118 code
+  0x118:                               | _start:
+  0x118: 10                            |   nop
+  0x119: 00                            |   halt
+
diff --git a/p3-disas/tests/expected/A_unaligned2.txt b/p3-disas/tests/expected/A_unaligned2.txt
new file mode 100644
index 0000000..6857997
--- /dev/null
+++ b/p3-disas/tests/expected/A_unaligned2.txt
@@ -0,0 +1,29 @@
+01 00 55 05 10 00 03 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x555
+There are 3 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x004c    0x0009    0x0000    CODE      R X
+  01       0x0055    0x001f    0x0555    CODE      R X
+  02       0x0074    0x0008    0x0987    DATA      RW 
+Contents of memory from 0000 to 0009:
+  0000  70 55 05 00 00 00 00 00  00
+Contents of memory from 0555 to 0574:
+  0550                 30 f0 4d  01 00 00 00 00 00 00 30
+  0560  f3 de 00 00 00 00 00 00  00 30 f1 6f 00 00 00 00
+  0570  00 00 00 00
+Contents of memory from 0987 to 098f:
+  0980                       dd  cc bb aa 00 00 00 00
+Disassembly of executable contents:
+  0x000:                               | .pos 0x000 code
+  0x000: 70 55 05 00 00 00 00 00 00    |   jmp 0x555
+
+  0x555:                               | .pos 0x555 code
+  0x555:                               | _start:
+  0x555: 30 f0 4d 01 00 00 00 00 00 00 |   irmovq 0x14d, %rax
+  0x55f: 30 f3 de 00 00 00 00 00 00 00 |   irmovq 0xde, %rbx
+  0x569: 30 f1 6f 00 00 00 00 00 00 00 |   irmovq 0x6f, %rcx
+  0x573: 00                            |   halt
+
diff --git a/p3-disas/tests/expected/B_iotrap.txt b/p3-disas/tests/expected/B_iotrap.txt
new file mode 100644
index 0000000..f846789
--- /dev/null
+++ b/p3-disas/tests/expected/B_iotrap.txt
@@ -0,0 +1,10 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: c0                            |   iotrap 0
+  0x101: c1                            |   iotrap 1
+  0x102: c2                            |   iotrap 2
+  0x103: c3                            |   iotrap 3
+  0x104: c4                            |   iotrap 4
+  0x105: c5                            |   iotrap 5
+
diff --git a/p3-disas/tests/expected/B_jmp.txt b/p3-disas/tests/expected/B_jmp.txt
new file mode 100644
index 0000000..0a63de6
--- /dev/null
+++ b/p3-disas/tests/expected/B_jmp.txt
@@ -0,0 +1,11 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 70 88 77 66 55 44 33 22 11    |   jmp 0x1122334455667788
+  0x109: 71 77 66 55 44 33 22 11 88    |   jle 0x8811223344556677
+  0x112: 72 66 55 44 33 22 11 88 77    |   jl 0x7788112233445566
+  0x11b: 73 55 44 33 22 11 88 77 66    |   je 0x6677881122334455
+  0x124: 74 44 33 22 11 88 77 66 55    |   jne 0x5566778811223344
+  0x12d: 75 33 22 11 88 77 66 55 44    |   jge 0x4455667788112233
+  0x136: 76 22 11 88 77 66 55 44 33    |   jg 0x3344556677881122
+
diff --git a/p3-disas/tests/expected/B_ninebyte.txt b/p3-disas/tests/expected/B_ninebyte.txt
new file mode 100644
index 0000000..322463d
--- /dev/null
+++ b/p3-disas/tests/expected/B_ninebyte.txt
@@ -0,0 +1,6 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 70 88 77 66 55 44 33 22 11    |   jmp 0x1122334455667788
+  0x109: 80 11 22 33 44 55 66 77 88    |   call 0x8877665544332211
+
diff --git a/p3-disas/tests/expected/B_simple.txt b/p3-disas/tests/expected/B_simple.txt
new file mode 100644
index 0000000..243a57e
--- /dev/null
+++ b/p3-disas/tests/expected/B_simple.txt
@@ -0,0 +1,19 @@
+01 00 00 01 10 00 01 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 1 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0024    0x0017    0x0100    CODE      R X
+Contents of memory from 0100 to 0117:
+  0100  30 f0 68 24 00 00 00 00  00 00 30 f3 34 12 00 00
+  0110  00 00 00 00 60 03 00
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 30 f0 68 24 00 00 00 00 00 00 |   irmovq 0x2468, %rax
+  0x10a: 30 f3 34 12 00 00 00 00 00 00 |   irmovq 0x1234, %rbx
+  0x114: 60 03                         |   addq %rax, %rbx
+  0x116: 00                            |   halt
+
diff --git a/p3-disas/tests/expected/B_simple_multi.txt b/p3-disas/tests/expected/B_simple_multi.txt
new file mode 100644
index 0000000..6bd9226
--- /dev/null
+++ b/p3-disas/tests/expected/B_simple_multi.txt
@@ -0,0 +1,17 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100: 10                            |   nop
+  0x101: 10                            |   nop
+  0x102: 10                            |   nop
+  0x103:                               | _start:
+  0x103: 30 f0 68 24 00 00 00 00 00 00 |   irmovq 0x2468, %rax
+  0x10d: 30 f3 34 12 00 00 00 00 00 00 |   irmovq 0x1234, %rbx
+  0x117: 60 03                         |   addq %rax, %rbx
+  0x119: 70 00 02 00 00 00 00 00 00    |   jmp 0x200
+
+  0x200:                               | .pos 0x200 code
+  0x200: 30 f1 78 56 00 00 00 00 00 00 |   irmovq 0x5678, %rcx
+  0x20a: 30 f2 14 15 00 00 00 00 00 00 |   irmovq 0x1514, %rdx
+  0x214: 61 21                         |   subq %rdx, %rcx
+  0x216: 00                            |   halt
+
diff --git a/p3-disas/tests/expected/B_tenbyte.txt b/p3-disas/tests/expected/B_tenbyte.txt
new file mode 100644
index 0000000..72d4b75
--- /dev/null
+++ b/p3-disas/tests/expected/B_tenbyte.txt
@@ -0,0 +1,9 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 30 f0 88 77 66 55 44 33 22 11 |   irmovq 0x1122334455667788, %rax
+  0x10a: 40 12 21 43 65 87 78 56 34 12 |   rmmovq %rcx, 0x1234567887654321(%rdx)
+  0x114: 50 12 78 56 34 12 21 43 65 87 |   mrmovq 0x8765432112345678(%rdx), %rcx
+  0x11e: 40 1f 21 43 65 87 78 56 34 12 |   rmmovq %rcx, 0x1234567887654321
+  0x128: 50 1f 78 56 34 12 21 43 65 87 |   mrmovq 0x8765432112345678, %rcx
+
diff --git a/p3-disas/tests/expected/C_cmov.txt b/p3-disas/tests/expected/C_cmov.txt
new file mode 100644
index 0000000..abf4b94
--- /dev/null
+++ b/p3-disas/tests/expected/C_cmov.txt
@@ -0,0 +1,11 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 20 01                         |   rrmovq %rax, %rcx
+  0x102: 21 23                         |   cmovle %rdx, %rbx
+  0x104: 22 45                         |   cmovl %rsp, %rbp
+  0x106: 23 67                         |   cmove %rsi, %rdi
+  0x108: 24 89                         |   cmovne %r8, %r9
+  0x10a: 25 ab                         |   cmovge %r10, %r11
+  0x10c: 26 ce                         |   cmovg %r12, %r14
+
diff --git a/p3-disas/tests/expected/C_help.txt b/p3-disas/tests/expected/C_help.txt
new file mode 100644
index 0000000..d8cdcea
--- /dev/null
+++ b/p3-disas/tests/expected/C_help.txt
@@ -0,0 +1,11 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
diff --git a/p3-disas/tests/expected/C_opq.txt b/p3-disas/tests/expected/C_opq.txt
new file mode 100644
index 0000000..ee43e76
--- /dev/null
+++ b/p3-disas/tests/expected/C_opq.txt
@@ -0,0 +1,8 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 60 23                         |   addq %rdx, %rbx
+  0x102: 61 01                         |   subq %rax, %rcx
+  0x104: 62 45                         |   andq %rsp, %rbp
+  0x106: 63 67                         |   xorq %rsi, %rdi
+
diff --git a/p3-disas/tests/expected/C_twobyte.txt b/p3-disas/tests/expected/C_twobyte.txt
new file mode 100644
index 0000000..2960202
--- /dev/null
+++ b/p3-disas/tests/expected/C_twobyte.txt
@@ -0,0 +1,8 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 20 01                         |   rrmovq %rax, %rcx
+  0x102: 60 23                         |   addq %rdx, %rbx
+  0x104: a0 6f                         |   pushq %rsi
+  0x106: b0 7f                         |   popq %rdi
+
diff --git a/p3-disas/tests/expected/D_onebyte.txt b/p3-disas/tests/expected/D_onebyte.txt
new file mode 100644
index 0000000..f77ec94
--- /dev/null
+++ b/p3-disas/tests/expected/D_onebyte.txt
@@ -0,0 +1,7 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 00                            |   halt
+  0x101: 10                            |   nop
+  0x102: 90                            |   ret
+
diff --git a/p3-disas/tests/inputs/bad-no_elf.o b/p3-disas/tests/inputs/bad-no_elf.o
new file mode 100644
index 0000000..8de3a52
Binary files /dev/null and b/p3-disas/tests/inputs/bad-no_elf.o differ
diff --git a/p3-disas/tests/inputs/bad-phdr.o b/p3-disas/tests/inputs/bad-phdr.o
new file mode 100644
index 0000000..2abcf6e
Binary files /dev/null and b/p3-disas/tests/inputs/bad-phdr.o differ
diff --git a/p3-disas/tests/inputs/bad-short_header.o b/p3-disas/tests/inputs/bad-short_header.o
new file mode 100644
index 0000000..f9d0e54
Binary files /dev/null and b/p3-disas/tests/inputs/bad-short_header.o differ
diff --git a/p3-disas/tests/inputs/bad-short_phdr.o b/p3-disas/tests/inputs/bad-short_phdr.o
new file mode 100644
index 0000000..f22f9bc
Binary files /dev/null and b/p3-disas/tests/inputs/bad-short_phdr.o differ
diff --git a/p3-disas/tests/inputs/cmov.o b/p3-disas/tests/inputs/cmov.o
new file mode 100644
index 0000000..d444d12
Binary files /dev/null and b/p3-disas/tests/inputs/cmov.o differ
diff --git a/p3-disas/tests/inputs/data.o b/p3-disas/tests/inputs/data.o
new file mode 100644
index 0000000..244e88f
Binary files /dev/null and b/p3-disas/tests/inputs/data.o differ
diff --git a/p3-disas/tests/inputs/interleaved.o b/p3-disas/tests/inputs/interleaved.o
new file mode 100644
index 0000000..709d3d3
Binary files /dev/null and b/p3-disas/tests/inputs/interleaved.o differ
diff --git a/p3-disas/tests/inputs/invalid.o b/p3-disas/tests/inputs/invalid.o
new file mode 100644
index 0000000..6f00342
Binary files /dev/null and b/p3-disas/tests/inputs/invalid.o differ
diff --git a/p3-disas/tests/inputs/iotrap.o b/p3-disas/tests/inputs/iotrap.o
new file mode 100644
index 0000000..d0afc04
Binary files /dev/null and b/p3-disas/tests/inputs/iotrap.o differ
diff --git a/p3-disas/tests/inputs/jmp.o b/p3-disas/tests/inputs/jmp.o
new file mode 100644
index 0000000..2aadfed
Binary files /dev/null and b/p3-disas/tests/inputs/jmp.o differ
diff --git a/p3-disas/tests/inputs/ninebyte.o b/p3-disas/tests/inputs/ninebyte.o
new file mode 100644
index 0000000..e6a1c0a
Binary files /dev/null and b/p3-disas/tests/inputs/ninebyte.o differ
diff --git a/p3-disas/tests/inputs/onebyte.o b/p3-disas/tests/inputs/onebyte.o
new file mode 100644
index 0000000..67bf3fc
Binary files /dev/null and b/p3-disas/tests/inputs/onebyte.o differ
diff --git a/p3-disas/tests/inputs/opq.o b/p3-disas/tests/inputs/opq.o
new file mode 100644
index 0000000..7893536
Binary files /dev/null and b/p3-disas/tests/inputs/opq.o differ
diff --git a/p3-disas/tests/inputs/rodata.o b/p3-disas/tests/inputs/rodata.o
new file mode 100644
index 0000000..8bbce56
Binary files /dev/null and b/p3-disas/tests/inputs/rodata.o differ
diff --git a/p3-disas/tests/inputs/rodata_long.o b/p3-disas/tests/inputs/rodata_long.o
new file mode 100644
index 0000000..49c9921
Binary files /dev/null and b/p3-disas/tests/inputs/rodata_long.o differ
diff --git a/p3-disas/tests/inputs/rodata_multi.o b/p3-disas/tests/inputs/rodata_multi.o
new file mode 100644
index 0000000..a506647
Binary files /dev/null and b/p3-disas/tests/inputs/rodata_multi.o differ
diff --git a/p3-disas/tests/inputs/rodata_shakespeare.o b/p3-disas/tests/inputs/rodata_shakespeare.o
new file mode 100644
index 0000000..689aaa4
Binary files /dev/null and b/p3-disas/tests/inputs/rodata_shakespeare.o differ
diff --git a/p3-disas/tests/inputs/simple.o b/p3-disas/tests/inputs/simple.o
new file mode 100644
index 0000000..0801eb1
Binary files /dev/null and b/p3-disas/tests/inputs/simple.o differ
diff --git a/p3-disas/tests/inputs/simple_multi.o b/p3-disas/tests/inputs/simple_multi.o
new file mode 100644
index 0000000..5634161
Binary files /dev/null and b/p3-disas/tests/inputs/simple_multi.o differ
diff --git a/p3-disas/tests/inputs/tenbyte.o b/p3-disas/tests/inputs/tenbyte.o
new file mode 100644
index 0000000..3be1315
Binary files /dev/null and b/p3-disas/tests/inputs/tenbyte.o differ
diff --git a/p3-disas/tests/inputs/twobyte.o b/p3-disas/tests/inputs/twobyte.o
new file mode 100644
index 0000000..97ca6f5
Binary files /dev/null and b/p3-disas/tests/inputs/twobyte.o differ
diff --git a/p3-disas/tests/inputs/unaligned.o b/p3-disas/tests/inputs/unaligned.o
new file mode 100644
index 0000000..079af97
Binary files /dev/null and b/p3-disas/tests/inputs/unaligned.o differ
diff --git a/p3-disas/tests/inputs/unaligned2.o b/p3-disas/tests/inputs/unaligned2.o
new file mode 100644
index 0000000..2d03189
Binary files /dev/null and b/p3-disas/tests/inputs/unaligned2.o differ
diff --git a/p3-disas/tests/integration.sh b/p3-disas/tests/integration.sh
new file mode 100644
index 0000000..ed5a430
--- /dev/null
+++ b/p3-disas/tests/integration.sh
@@ -0,0 +1,87 @@
+#!/bin/bash
+
+# extract executable name from Makefile
+EXE=$(grep "EXE=" Makefile | sed -e "s/EXE=//")
+
+# detect timeout utility (i.e., "timeout" on Linux and "gtimeout" on MacOS)
+# and set timeout interval
+TIMEOUT="timeout"
+TIMEOUT_INTERVAL="3s"
+$TIMEOUT --help &>/dev/null
+if [[ $? -ne 0 ]]; then
+    TIMEOUT="gtimeout"
+fi
+
+# Valgrind additional output flags
+VG_FLAGS="--leak-check=full --track-origins=yes"
+
+function run_test {
+
+    # parameters
+    TAG=$1
+    ARGS=$2
+    PTAG=$(printf '%-30s' "$TAG")
+
+    # file paths
+    OUTPUT=outputs/$TAG.txt
+    DIFF=outputs/$TAG.diff
+    EXPECT=expected/$TAG.txt
+    VALGRND=valgrind/$TAG.txt
+
+    # run test with timeout
+    $TIMEOUT $TIMEOUT_INTERVAL $EXE $ARGS 2>/dev/null >"$OUTPUT"
+    if [ "$?" -lt 124 ]; then
+
+        # no timeout; compare output to the expected version
+        diff -u "$OUTPUT" "$EXPECT" >"$DIFF"
+        if [ -s "$DIFF" ]; then
+
+            # try alternative solution (if it exists)
+            EXPECT=expected/$TAG-2.txt
+            if [ -e "$EXPECT" ]; then
+                diff -u "$OUTPUT" "$EXPECT" >"$DIFF"
+                if [ -s "$DIFF" ]; then
+                    echo "$PTAG FAIL (see ${TPREFIX}$DIFF for details)"
+                else
+                    echo "$PTAG pass"
+                fi
+            else
+                echo "$PTAG FAIL (see ${TPREFIX}$DIFF for details)"
+            fi
+        else
+            echo "$PTAG pass"
+        fi
+
+        # run valgrind
+        $TIMEOUT $TIMEOUT_INTERVAL valgrind $VG_FLAGS $EXE $ARGS &>$VALGRND
+    else
+        echo "$PTAG FAIL (crash or timeout)"
+    fi
+}
+
+# initialize output folders
+mkdir -p outputs
+mkdir -p valgrind
+rm -f outputs/* valgrind/*
+
+# run individual tests
+source itests.include
+
+# check for memory leaks
+LEAK=`cat valgrind/*.txt | grep 'definitely lost' | grep -v ' 0 bytes in 0 blocks'`
+if [ -z "$LEAK" ]; then
+    echo "No memory leak found."
+else
+    echo "Memory leak(s) found. See files listed below for details."
+    grep 'definitely lost' valgrind/*.txt | sed -e 's/:.*$//g' | awk "{print \"  - ${TPREFIX}\" \$0}"
+fi
+
+# check for uninitialized values
+LEAK=`cat valgrind/*.txt | grep 'uninitialised value'`
+if [ -z "$LEAK" ]; then
+    echo "No uninitialized value found."
+else
+    echo "Uninitialized value(s) found. See files listed below for details."
+    grep 'uninitialised value' valgrind/*.txt | sed -e 's/:.*$//g' | awk "{print \"  - ${TPREFIX}\" \$0}"
+fi
+
diff --git a/p3-disas/tests/itests.include b/p3-disas/tests/itests.include
new file mode 100644
index 0000000..12f5443
--- /dev/null
+++ b/p3-disas/tests/itests.include
@@ -0,0 +1,34 @@
+# list of integration tests
+#  format: run_test <TAG> <ARGS>
+#    <TAG>      used as the root for all filenames (i.e., "expected/$TAG.txt")
+#    <ARGS>     command-line arguments to test
+
+run_test    D_onebyte               "-d inputs/onebyte.o"
+run_test    C_help                  "-h"
+run_test    C_twobyte               "-d inputs/twobyte.o"
+run_test    C_cmov                  "-d inputs/cmov.o"
+run_test    C_opq                   "-d inputs/opq.o"
+run_test    B_ninebyte              "-d inputs/ninebyte.o"
+run_test    B_jmp                   "-d inputs/jmp.o"
+run_test    B_tenbyte               "-d inputs/tenbyte.o"
+run_test    B_simple                "-a -d inputs/simple.o"
+run_test    B_simple_multi          "-d inputs/simple_multi.o"
+run_test    B_iotrap                "-d inputs/iotrap.o"
+run_test    A_data_code             "-d inputs/data.o"
+run_test    A_rodata_code           "-d inputs/rodata.o"
+run_test    A_data                  "-D inputs/data.o"
+run_test    A_rodata                "-D inputs/rodata.o"
+run_test    A_rodata_multi          "-D inputs/rodata_multi.o"
+run_test    A_interleaved           "-d -D inputs/interleaved.o"
+run_test    A_invalid               "-d inputs/invalid.o"
+run_test    A_bad_no_elf            "-d inputs/bad-no_elf.o"
+run_test    A_bad_phdr              "-d inputs/bad-phdr.o"
+run_test    A_bad_short_header      "-d inputs/bad-short_header.o"
+run_test    A_bad_short_phdr        "-d inputs/bad-short_phdr.o"
+run_test    A_bad_filename          "-d inputs/bad-nonexist.o"
+run_test    A_missing_file          "-d"
+run_test    A_extra_params          "-d inputs/onebyte.o extra params"
+run_test    A_unaligned1            "-a -d inputs/unaligned.o"
+run_test    A_unaligned2            "-a -d inputs/unaligned2.o"
+run_test    A_rodata_long           "-D inputs/rodata_long.o"
+run_test    A_rodata_shakespeare    "-D inputs/rodata_shakespeare.o"
diff --git a/p3-disas/tests/itests.txt b/p3-disas/tests/itests.txt
new file mode 100644
index 0000000..7003399
--- /dev/null
+++ b/p3-disas/tests/itests.txt
@@ -0,0 +1,31 @@
+D_onebyte                      pass
+C_help                         pass
+C_twobyte                      pass
+C_cmov                         pass
+C_opq                          pass
+B_ninebyte                     pass
+B_jmp                          pass
+B_tenbyte                      pass
+B_simple                       pass
+B_simple_multi                 pass
+B_iotrap                       pass
+A_data_code                    pass
+A_rodata_code                  pass
+A_data                         pass
+A_rodata                       pass
+A_rodata_multi                 pass
+A_interleaved                  pass
+A_invalid                      pass
+A_bad_no_elf                   pass
+A_bad_phdr                     pass
+A_bad_short_header             pass
+A_bad_short_phdr               pass
+A_bad_filename                 pass
+A_missing_file                 pass
+A_extra_params                 pass
+A_unaligned1                   pass
+A_unaligned2                   pass
+A_rodata_long                  pass
+A_rodata_shakespeare           pass
+No memory leak found.
+No uninitialized value found.
diff --git a/p3-disas/tests/outputs/A_bad_filename.diff b/p3-disas/tests/outputs/A_bad_filename.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_bad_filename.txt b/p3-disas/tests/outputs/A_bad_filename.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p3-disas/tests/outputs/A_bad_filename.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p3-disas/tests/outputs/A_bad_no_elf.diff b/p3-disas/tests/outputs/A_bad_no_elf.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_bad_no_elf.txt b/p3-disas/tests/outputs/A_bad_no_elf.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p3-disas/tests/outputs/A_bad_no_elf.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p3-disas/tests/outputs/A_bad_phdr.diff b/p3-disas/tests/outputs/A_bad_phdr.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_bad_phdr.txt b/p3-disas/tests/outputs/A_bad_phdr.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p3-disas/tests/outputs/A_bad_phdr.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p3-disas/tests/outputs/A_bad_short_header.diff b/p3-disas/tests/outputs/A_bad_short_header.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_bad_short_header.txt b/p3-disas/tests/outputs/A_bad_short_header.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p3-disas/tests/outputs/A_bad_short_header.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p3-disas/tests/outputs/A_bad_short_phdr.diff b/p3-disas/tests/outputs/A_bad_short_phdr.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_bad_short_phdr.txt b/p3-disas/tests/outputs/A_bad_short_phdr.txt
new file mode 100644
index 0000000..127d3fc
--- /dev/null
+++ b/p3-disas/tests/outputs/A_bad_short_phdr.txt
@@ -0,0 +1 @@
+Failed to read file
diff --git a/p3-disas/tests/outputs/A_data.diff b/p3-disas/tests/outputs/A_data.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_data.txt b/p3-disas/tests/outputs/A_data.txt
new file mode 100644
index 0000000..f2f788c
--- /dev/null
+++ b/p3-disas/tests/outputs/A_data.txt
@@ -0,0 +1,6 @@
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 data
+  0x200: 88 77 66 55 44 33 22 11       |   .quad 0x1122334455667788
+  0x208: 78 56 34 12 00 00 00 00       |   .quad 0x12345678
+  0x210: 42 00 00 00 00 00 00 00       |   .quad 0x42
+
diff --git a/p3-disas/tests/outputs/A_data_code.diff b/p3-disas/tests/outputs/A_data_code.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_data_code.txt b/p3-disas/tests/outputs/A_data_code.txt
new file mode 100644
index 0000000..02ccbc6
--- /dev/null
+++ b/p3-disas/tests/outputs/A_data_code.txt
@@ -0,0 +1,5 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 00                            |   halt
+
diff --git a/p3-disas/tests/outputs/A_extra_params.diff b/p3-disas/tests/outputs/A_extra_params.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_extra_params.txt b/p3-disas/tests/outputs/A_extra_params.txt
new file mode 100644
index 0000000..d8cdcea
--- /dev/null
+++ b/p3-disas/tests/outputs/A_extra_params.txt
@@ -0,0 +1,11 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
diff --git a/p3-disas/tests/outputs/A_interleaved.diff b/p3-disas/tests/outputs/A_interleaved.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_interleaved.txt b/p3-disas/tests/outputs/A_interleaved.txt
new file mode 100644
index 0000000..2a36f13
--- /dev/null
+++ b/p3-disas/tests/outputs/A_interleaved.txt
@@ -0,0 +1,22 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 00                            |   halt
+
+  0x400:                               | .pos 0x400 code
+  0x400: 10                            |   nop
+  0x401: 00                            |   halt
+
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 data
+  0x200: 10 00 00 00 00 00 00 00       |   .quad 0x10
+
+  0x300:                               | .pos 0x300 rodata
+  0x300: 74 65 73 74 00                |   .string "test"
+
+  0x500:                               | .pos 0x500 data
+  0x500: 78 56 34 12 00 00 00 00       |   .quad 0x12345678
+
+  0x600:                               | .pos 0x600 rodata
+  0x600: 61 67 61 69 6e 00             |   .string "again"
+
diff --git a/p3-disas/tests/outputs/A_invalid.diff b/p3-disas/tests/outputs/A_invalid.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_invalid.txt b/p3-disas/tests/outputs/A_invalid.txt
new file mode 100644
index 0000000..1fc31b4
--- /dev/null
+++ b/p3-disas/tests/outputs/A_invalid.txt
@@ -0,0 +1,6 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 30 f3 0f 00 00 00 20 31 40 13 |   irmovq 0x134031200000000f, %rbx
+Invalid opcode: 0xfd
+
diff --git a/p3-disas/tests/outputs/A_missing_file.diff b/p3-disas/tests/outputs/A_missing_file.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_missing_file.txt b/p3-disas/tests/outputs/A_missing_file.txt
new file mode 100644
index 0000000..d8cdcea
--- /dev/null
+++ b/p3-disas/tests/outputs/A_missing_file.txt
@@ -0,0 +1,11 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
diff --git a/p3-disas/tests/outputs/A_rodata.diff b/p3-disas/tests/outputs/A_rodata.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_rodata.txt b/p3-disas/tests/outputs/A_rodata.txt
new file mode 100644
index 0000000..6918389
--- /dev/null
+++ b/p3-disas/tests/outputs/A_rodata.txt
@@ -0,0 +1,4 @@
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 rodata
+  0x200: 68 65 6c 6c 6f 00             |   .string "hello"
+
diff --git a/p3-disas/tests/outputs/A_rodata_code.diff b/p3-disas/tests/outputs/A_rodata_code.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_rodata_code.txt b/p3-disas/tests/outputs/A_rodata_code.txt
new file mode 100644
index 0000000..02ccbc6
--- /dev/null
+++ b/p3-disas/tests/outputs/A_rodata_code.txt
@@ -0,0 +1,5 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 00                            |   halt
+
diff --git a/p3-disas/tests/outputs/A_rodata_long.diff b/p3-disas/tests/outputs/A_rodata_long.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_rodata_long.txt b/p3-disas/tests/outputs/A_rodata_long.txt
new file mode 100644
index 0000000..029f49b
--- /dev/null
+++ b/p3-disas/tests/outputs/A_rodata_long.txt
@@ -0,0 +1,10 @@
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 rodata
+  0x200: 30 31 32 33 34 35 36 37 38 39 |   .string "0123456789"
+  0x20a: 00                            | 
+  0x20b: 68 65 6c 6c 6f 20 77 6f 72 6c |   .string "hello world"
+  0x215: 64 00                         | 
+  0x217: 61 62 63 64 65 66 67 68 69 6a |   .string "abcdefghijklmnopqrstuvwxyz"
+  0x221: 6b 6c 6d 6e 6f 70 71 72 73 74 | 
+  0x22b: 75 76 77 78 79 7a 00          | 
+
diff --git a/p3-disas/tests/outputs/A_rodata_multi.diff b/p3-disas/tests/outputs/A_rodata_multi.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_rodata_multi.txt b/p3-disas/tests/outputs/A_rodata_multi.txt
new file mode 100644
index 0000000..2ebe064
--- /dev/null
+++ b/p3-disas/tests/outputs/A_rodata_multi.txt
@@ -0,0 +1,6 @@
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 rodata
+  0x200: 66 6f 6f 00                   |   .string "foo"
+  0x204: 77 30 30 74 00                |   .string "w00t"
+  0x209: 75 70 20 64 6f 77 6e 00       |   .string "up down"
+
diff --git a/p3-disas/tests/outputs/A_rodata_shakespeare.diff b/p3-disas/tests/outputs/A_rodata_shakespeare.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_rodata_shakespeare.txt b/p3-disas/tests/outputs/A_rodata_shakespeare.txt
new file mode 100644
index 0000000..553a78f
--- /dev/null
+++ b/p3-disas/tests/outputs/A_rodata_shakespeare.txt
@@ -0,0 +1,20 @@
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 rodata
+  0x200: 54 6f 20 62 65 2c 20 6f 72 20 |   .string "To be, or not to be: that is the question"
+  0x20a: 6e 6f 74 20 74 6f 20 62 65 3a | 
+  0x214: 20 74 68 61 74 20 69 73 20 74 | 
+  0x21e: 68 65 20 71 75 65 73 74 69 6f | 
+  0x228: 6e 00                         | 
+  0x22a: 57 68 61 74 27 73 20 69 6e 20 |   .string "What's in a name? A rose by any other name would smell as sweet."
+  0x234: 61 20 6e 61 6d 65 3f 20 41 20 | 
+  0x23e: 72 6f 73 65 20 62 79 20 61 6e | 
+  0x248: 79 20 6f 74 68 65 72 20 6e 61 | 
+  0x252: 6d 65 20 77 6f 75 6c 64 20 73 | 
+  0x25c: 6d 65 6c 6c 20 61 73 20 73 77 | 
+  0x266: 65 65 74 2e 00                | 
+  0x26b: 42 75 74 2c 20 66 6f 72 20 6d |   .string "But, for my own part, it was Greek to me."
+  0x275: 79 20 6f 77 6e 20 70 61 72 74 | 
+  0x27f: 2c 20 69 74 20 77 61 73 20 47 | 
+  0x289: 72 65 65 6b 20 74 6f 20 6d 65 | 
+  0x293: 2e 00                         | 
+
diff --git a/p3-disas/tests/outputs/A_unaligned1.diff b/p3-disas/tests/outputs/A_unaligned1.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_unaligned1.txt b/p3-disas/tests/outputs/A_unaligned1.txt
new file mode 100644
index 0000000..4f16bfd
--- /dev/null
+++ b/p3-disas/tests/outputs/A_unaligned1.txt
@@ -0,0 +1,26 @@
+01 00 18 01 10 00 03 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x118
+There are 3 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x004c    0x0009    0x0000    CODE      R X
+  01       0x0055    0x0002    0x0118    CODE      R X
+  02       0x0057    0x0008    0x013a    DATA      RW 
+Contents of memory from 0000 to 0009:
+  0000  70 18 01 00 00 00 00 00  00
+Contents of memory from 0118 to 011a:
+  0110                           10 00
+Contents of memory from 013a to 0142:
+  0130                                 39 30 00 00 00 00
+  0140  00 00
+Disassembly of executable contents:
+  0x000:                               | .pos 0x000 code
+  0x000: 70 18 01 00 00 00 00 00 00    |   jmp 0x118
+
+  0x118:                               | .pos 0x118 code
+  0x118:                               | _start:
+  0x118: 10                            |   nop
+  0x119: 00                            |   halt
+
diff --git a/p3-disas/tests/outputs/A_unaligned2.diff b/p3-disas/tests/outputs/A_unaligned2.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/A_unaligned2.txt b/p3-disas/tests/outputs/A_unaligned2.txt
new file mode 100644
index 0000000..6857997
--- /dev/null
+++ b/p3-disas/tests/outputs/A_unaligned2.txt
@@ -0,0 +1,29 @@
+01 00 55 05 10 00 03 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x555
+There are 3 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x004c    0x0009    0x0000    CODE      R X
+  01       0x0055    0x001f    0x0555    CODE      R X
+  02       0x0074    0x0008    0x0987    DATA      RW 
+Contents of memory from 0000 to 0009:
+  0000  70 55 05 00 00 00 00 00  00
+Contents of memory from 0555 to 0574:
+  0550                 30 f0 4d  01 00 00 00 00 00 00 30
+  0560  f3 de 00 00 00 00 00 00  00 30 f1 6f 00 00 00 00
+  0570  00 00 00 00
+Contents of memory from 0987 to 098f:
+  0980                       dd  cc bb aa 00 00 00 00
+Disassembly of executable contents:
+  0x000:                               | .pos 0x000 code
+  0x000: 70 55 05 00 00 00 00 00 00    |   jmp 0x555
+
+  0x555:                               | .pos 0x555 code
+  0x555:                               | _start:
+  0x555: 30 f0 4d 01 00 00 00 00 00 00 |   irmovq 0x14d, %rax
+  0x55f: 30 f3 de 00 00 00 00 00 00 00 |   irmovq 0xde, %rbx
+  0x569: 30 f1 6f 00 00 00 00 00 00 00 |   irmovq 0x6f, %rcx
+  0x573: 00                            |   halt
+
diff --git a/p3-disas/tests/outputs/B_iotrap.diff b/p3-disas/tests/outputs/B_iotrap.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/B_iotrap.txt b/p3-disas/tests/outputs/B_iotrap.txt
new file mode 100644
index 0000000..f846789
--- /dev/null
+++ b/p3-disas/tests/outputs/B_iotrap.txt
@@ -0,0 +1,10 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: c0                            |   iotrap 0
+  0x101: c1                            |   iotrap 1
+  0x102: c2                            |   iotrap 2
+  0x103: c3                            |   iotrap 3
+  0x104: c4                            |   iotrap 4
+  0x105: c5                            |   iotrap 5
+
diff --git a/p3-disas/tests/outputs/B_jmp.diff b/p3-disas/tests/outputs/B_jmp.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/B_jmp.txt b/p3-disas/tests/outputs/B_jmp.txt
new file mode 100644
index 0000000..0a63de6
--- /dev/null
+++ b/p3-disas/tests/outputs/B_jmp.txt
@@ -0,0 +1,11 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 70 88 77 66 55 44 33 22 11    |   jmp 0x1122334455667788
+  0x109: 71 77 66 55 44 33 22 11 88    |   jle 0x8811223344556677
+  0x112: 72 66 55 44 33 22 11 88 77    |   jl 0x7788112233445566
+  0x11b: 73 55 44 33 22 11 88 77 66    |   je 0x6677881122334455
+  0x124: 74 44 33 22 11 88 77 66 55    |   jne 0x5566778811223344
+  0x12d: 75 33 22 11 88 77 66 55 44    |   jge 0x4455667788112233
+  0x136: 76 22 11 88 77 66 55 44 33    |   jg 0x3344556677881122
+
diff --git a/p3-disas/tests/outputs/B_ninebyte.diff b/p3-disas/tests/outputs/B_ninebyte.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/B_ninebyte.txt b/p3-disas/tests/outputs/B_ninebyte.txt
new file mode 100644
index 0000000..322463d
--- /dev/null
+++ b/p3-disas/tests/outputs/B_ninebyte.txt
@@ -0,0 +1,6 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 70 88 77 66 55 44 33 22 11    |   jmp 0x1122334455667788
+  0x109: 80 11 22 33 44 55 66 77 88    |   call 0x8877665544332211
+
diff --git a/p3-disas/tests/outputs/B_simple.diff b/p3-disas/tests/outputs/B_simple.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/B_simple.txt b/p3-disas/tests/outputs/B_simple.txt
new file mode 100644
index 0000000..243a57e
--- /dev/null
+++ b/p3-disas/tests/outputs/B_simple.txt
@@ -0,0 +1,19 @@
+01 00 00 01 10 00 01 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 1 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0024    0x0017    0x0100    CODE      R X
+Contents of memory from 0100 to 0117:
+  0100  30 f0 68 24 00 00 00 00  00 00 30 f3 34 12 00 00
+  0110  00 00 00 00 60 03 00
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 30 f0 68 24 00 00 00 00 00 00 |   irmovq 0x2468, %rax
+  0x10a: 30 f3 34 12 00 00 00 00 00 00 |   irmovq 0x1234, %rbx
+  0x114: 60 03                         |   addq %rax, %rbx
+  0x116: 00                            |   halt
+
diff --git a/p3-disas/tests/outputs/B_simple_multi.diff b/p3-disas/tests/outputs/B_simple_multi.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/B_simple_multi.txt b/p3-disas/tests/outputs/B_simple_multi.txt
new file mode 100644
index 0000000..6bd9226
--- /dev/null
+++ b/p3-disas/tests/outputs/B_simple_multi.txt
@@ -0,0 +1,17 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100: 10                            |   nop
+  0x101: 10                            |   nop
+  0x102: 10                            |   nop
+  0x103:                               | _start:
+  0x103: 30 f0 68 24 00 00 00 00 00 00 |   irmovq 0x2468, %rax
+  0x10d: 30 f3 34 12 00 00 00 00 00 00 |   irmovq 0x1234, %rbx
+  0x117: 60 03                         |   addq %rax, %rbx
+  0x119: 70 00 02 00 00 00 00 00 00    |   jmp 0x200
+
+  0x200:                               | .pos 0x200 code
+  0x200: 30 f1 78 56 00 00 00 00 00 00 |   irmovq 0x5678, %rcx
+  0x20a: 30 f2 14 15 00 00 00 00 00 00 |   irmovq 0x1514, %rdx
+  0x214: 61 21                         |   subq %rdx, %rcx
+  0x216: 00                            |   halt
+
diff --git a/p3-disas/tests/outputs/B_tenbyte.diff b/p3-disas/tests/outputs/B_tenbyte.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/B_tenbyte.txt b/p3-disas/tests/outputs/B_tenbyte.txt
new file mode 100644
index 0000000..72d4b75
--- /dev/null
+++ b/p3-disas/tests/outputs/B_tenbyte.txt
@@ -0,0 +1,9 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 30 f0 88 77 66 55 44 33 22 11 |   irmovq 0x1122334455667788, %rax
+  0x10a: 40 12 21 43 65 87 78 56 34 12 |   rmmovq %rcx, 0x1234567887654321(%rdx)
+  0x114: 50 12 78 56 34 12 21 43 65 87 |   mrmovq 0x8765432112345678(%rdx), %rcx
+  0x11e: 40 1f 21 43 65 87 78 56 34 12 |   rmmovq %rcx, 0x1234567887654321
+  0x128: 50 1f 78 56 34 12 21 43 65 87 |   mrmovq 0x8765432112345678, %rcx
+
diff --git a/p3-disas/tests/outputs/C_cmov.diff b/p3-disas/tests/outputs/C_cmov.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/C_cmov.txt b/p3-disas/tests/outputs/C_cmov.txt
new file mode 100644
index 0000000..abf4b94
--- /dev/null
+++ b/p3-disas/tests/outputs/C_cmov.txt
@@ -0,0 +1,11 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 20 01                         |   rrmovq %rax, %rcx
+  0x102: 21 23                         |   cmovle %rdx, %rbx
+  0x104: 22 45                         |   cmovl %rsp, %rbp
+  0x106: 23 67                         |   cmove %rsi, %rdi
+  0x108: 24 89                         |   cmovne %r8, %r9
+  0x10a: 25 ab                         |   cmovge %r10, %r11
+  0x10c: 26 ce                         |   cmovg %r12, %r14
+
diff --git a/p3-disas/tests/outputs/C_help.diff b/p3-disas/tests/outputs/C_help.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/C_help.txt b/p3-disas/tests/outputs/C_help.txt
new file mode 100644
index 0000000..d8cdcea
--- /dev/null
+++ b/p3-disas/tests/outputs/C_help.txt
@@ -0,0 +1,11 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
diff --git a/p3-disas/tests/outputs/C_opq.diff b/p3-disas/tests/outputs/C_opq.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/C_opq.txt b/p3-disas/tests/outputs/C_opq.txt
new file mode 100644
index 0000000..ee43e76
--- /dev/null
+++ b/p3-disas/tests/outputs/C_opq.txt
@@ -0,0 +1,8 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 60 23                         |   addq %rdx, %rbx
+  0x102: 61 01                         |   subq %rax, %rcx
+  0x104: 62 45                         |   andq %rsp, %rbp
+  0x106: 63 67                         |   xorq %rsi, %rdi
+
diff --git a/p3-disas/tests/outputs/C_twobyte.diff b/p3-disas/tests/outputs/C_twobyte.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/C_twobyte.txt b/p3-disas/tests/outputs/C_twobyte.txt
new file mode 100644
index 0000000..2960202
--- /dev/null
+++ b/p3-disas/tests/outputs/C_twobyte.txt
@@ -0,0 +1,8 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 20 01                         |   rrmovq %rax, %rcx
+  0x102: 60 23                         |   addq %rdx, %rbx
+  0x104: a0 6f                         |   pushq %rsi
+  0x106: b0 7f                         |   popq %rdi
+
diff --git a/p3-disas/tests/outputs/D_onebyte.diff b/p3-disas/tests/outputs/D_onebyte.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p3-disas/tests/outputs/D_onebyte.txt b/p3-disas/tests/outputs/D_onebyte.txt
new file mode 100644
index 0000000..f77ec94
--- /dev/null
+++ b/p3-disas/tests/outputs/D_onebyte.txt
@@ -0,0 +1,7 @@
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 00                            |   halt
+  0x101: 10                            |   nop
+  0x102: 90                            |   ret
+
diff --git a/p3-disas/tests/private.o b/p3-disas/tests/private.o
new file mode 100644
index 0000000..492d544
Binary files /dev/null and b/p3-disas/tests/private.o differ
diff --git a/p3-disas/tests/public.c b/p3-disas/tests/public.c
new file mode 100644
index 0000000..3d7620b
--- /dev/null
+++ b/p3-disas/tests/public.c
@@ -0,0 +1,148 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include <check.h>
+
+#include "../p3-disas.h"
+
+#define testsuite_memsize 24
+uint8_t array[testsuite_memsize];
+byte_t *testsuite_memory = array;
+
+/* check HALT handling */
+START_TEST (D_fetch_halt)
+{
+    y86_t cpu;
+    uint8_t opcode = HALT << 4;
+    uint8_t opsize = 1;
+    cpu.pc = (y86_reg_t) (rand () % (testsuite_memsize - opsize + 1));
+    memset (testsuite_memory, 0, testsuite_memsize);
+    memset (&cpu, 0, sizeof (cpu));
+    testsuite_memory[cpu.pc] = opcode;
+
+    y86_inst_t inst = fetch (&cpu, testsuite_memory);
+    ck_assert (inst.icode  == HALT);
+    ck_assert (inst.ifun.b == 0);
+    ck_assert (inst.valP   == cpu.pc + opsize);
+}
+END_TEST
+
+/* check NOP handling */
+START_TEST (D_fetch_nop)
+{
+    y86_t cpu;
+    uint8_t opcode = NOP << 4;
+    uint8_t opsize = 1;
+    memset (testsuite_memory, 0, testsuite_memsize);
+    memset (&cpu, 0, sizeof (cpu));
+    cpu.pc = (y86_reg_t) (rand () % (testsuite_memsize - opsize + 1));
+    testsuite_memory[cpu.pc] = opcode;
+
+    y86_inst_t inst = fetch (&cpu, testsuite_memory);
+    ck_assert (inst.icode  == NOP);
+    ck_assert (inst.ifun.b == 0);
+    ck_assert (inst.valP   == cpu.pc + opsize);
+}
+END_TEST
+
+/* check RET handling */
+START_TEST (D_fetch_ret)
+{
+    y86_t cpu;
+    uint8_t opcode = RET << 4;
+    uint8_t opsize = 1;
+    memset (testsuite_memory, 0, testsuite_memsize);
+    memset (&cpu, 0, sizeof (cpu));
+    cpu.pc = (y86_reg_t) (rand () % (testsuite_memsize - opsize + 1));
+    testsuite_memory[cpu.pc] = opcode;
+
+    y86_inst_t inst = fetch (&cpu, testsuite_memory);
+    ck_assert (inst.icode  == RET);
+    ck_assert (inst.ifun.b == 0);
+    ck_assert (inst.valP   == cpu.pc + opsize);
+}
+END_TEST
+
+/* check HALT handling w/ errors */
+START_TEST (D_errors_fetch_halt)
+{
+    y86_t cpu;
+    uint8_t opcode;
+    memset (&cpu, 0, sizeof (cpu));
+    uint8_t i;
+    size_t opsize = 1;
+
+    for (i = 1; i < 16; i++)
+    {
+        opcode = (HALT << 4) | i;   // set low-order bits to non-zero
+        memset (testsuite_memory, 0, testsuite_memsize);
+        cpu.pc = (y86_reg_t) (rand () % (testsuite_memsize - opsize + 1));
+        testsuite_memory[cpu.pc] = opcode;
+        cpu.stat = AOK;
+        y86_inst_t inst = fetch (&cpu, testsuite_memory);
+        ck_assert (inst.icode  == INVALID);
+        ck_assert (cpu.stat == INS);
+    }
+}
+END_TEST
+
+/* check NOP handling w/ errors */
+START_TEST (D_errors_fetch_nop)
+{
+    y86_t cpu;
+    uint8_t opcode;
+    memset (&cpu, 0, sizeof (cpu));
+    uint8_t i;
+    size_t opsize = 1;
+
+    for (i = 1; i < 16; i++)
+    {
+        opcode = (NOP << 4) | i;   // set low-order bits to non-zero
+        memset (testsuite_memory, 0, testsuite_memsize);
+        cpu.pc = (y86_reg_t) (rand () % (testsuite_memsize - opsize + 1));
+        testsuite_memory[cpu.pc] = opcode;
+        cpu.stat = AOK;
+        y86_inst_t inst = fetch (&cpu, testsuite_memory);
+        ck_assert (inst.icode  == INVALID);
+        ck_assert (cpu.stat == INS);
+    }
+}
+END_TEST
+
+/* check NOP handling w/ errors */
+START_TEST (D_errors_fetch_ret)
+{
+    y86_t cpu;
+    uint8_t opcode;
+    uint8_t opsize = 1;
+    uint8_t i;
+    y86_inst_t inst;
+    memset (testsuite_memory, 0, testsuite_memsize);
+    memset (&cpu, 0, sizeof (cpu));
+    cpu.pc = (y86_reg_t) (rand () % (testsuite_memsize - opsize + 1));
+
+    for (i = 1; i < 16; i++)
+    {
+        opcode = (RET << 4) | i;   // set low-order bits to non-zero
+        testsuite_memory[cpu.pc] = opcode;
+        cpu.stat = AOK;
+        inst = fetch (&cpu, testsuite_memory);
+        ck_assert (inst.icode  == INVALID);
+        ck_assert (cpu.stat == INS);
+    }
+}
+END_TEST
+
+void public_tests (Suite *s)
+{
+    TCase *tc_public = tcase_create ("Public");
+    tcase_add_test (tc_public, D_fetch_halt);
+    tcase_add_test (tc_public, D_fetch_nop);
+    tcase_add_test (tc_public, D_fetch_ret);
+    tcase_add_test (tc_public, D_errors_fetch_halt);
+    tcase_add_test (tc_public, D_errors_fetch_nop);
+    tcase_add_test (tc_public, D_errors_fetch_ret);
+    suite_add_tcase (s, tc_public);
+}
+
diff --git a/p3-disas/tests/public.o b/p3-disas/tests/public.o
new file mode 100644
index 0000000..23d5d9d
Binary files /dev/null and b/p3-disas/tests/public.o differ
diff --git a/p3-disas/tests/testsuite b/p3-disas/tests/testsuite
new file mode 100644
index 0000000..5bf7ac5
Binary files /dev/null and b/p3-disas/tests/testsuite differ
diff --git a/p3-disas/tests/testsuite.c b/p3-disas/tests/testsuite.c
new file mode 100644
index 0000000..717c193
--- /dev/null
+++ b/p3-disas/tests/testsuite.c
@@ -0,0 +1,34 @@
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <assert.h>
+#include <time.h>
+
+#include <check.h>
+
+extern void public_tests (Suite *s);
+extern void private_tests (Suite *s);
+
+Suite * test_suite (void)
+{
+    Suite *s = suite_create ("Default");
+    public_tests (s);
+    private_tests (s);
+    return s;
+}
+
+void run_testsuite (void)
+{
+    Suite *s = test_suite ();
+    SRunner *sr = srunner_create (s);
+    srunner_run_all (sr, CK_NORMAL);
+    srunner_free (sr);
+}
+
+int main (void)
+{
+    srand((unsigned)time(NULL));
+    run_testsuite ();
+    return EXIT_SUCCESS;
+}
diff --git a/p3-disas/tests/testsuite.o b/p3-disas/tests/testsuite.o
new file mode 100644
index 0000000..1e1c8c9
Binary files /dev/null and b/p3-disas/tests/testsuite.o differ
diff --git a/p3-disas/tests/utests.txt b/p3-disas/tests/utests.txt
new file mode 100644
index 0000000..fde36ad
--- /dev/null
+++ b/p3-disas/tests/utests.txt
@@ -0,0 +1,3 @@
+Running suite(s): Default
+20 ff = 13
+100%: Checks: 34, Failures: 0, Errors: 0
diff --git a/p3-disas/tests/valgrind/A_bad_filename.txt b/p3-disas/tests/valgrind/A_bad_filename.txt
new file mode 100644
index 0000000..595dc34
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_bad_filename.txt
@@ -0,0 +1,15 @@
+==2061914== Memcheck, a memory error detector
+==2061914== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061914== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061914== Command: ../y86 -d inputs/bad-nonexist.o
+==2061914== 
+Failed to read file
+==2061914== 
+==2061914== HEAP SUMMARY:
+==2061914==     in use at exit: 0 bytes in 0 blocks
+==2061914==   total heap usage: 2 allocs, 2 frees, 8,664 bytes allocated
+==2061914== 
+==2061914== All heap blocks were freed -- no leaks are possible
+==2061914== 
+==2061914== For lists of detected and suppressed errors, rerun with: -s
+==2061914== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_bad_no_elf.txt b/p3-disas/tests/valgrind/A_bad_no_elf.txt
new file mode 100644
index 0000000..d7a9623
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_bad_no_elf.txt
@@ -0,0 +1,15 @@
+==2061781== Memcheck, a memory error detector
+==2061781== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061781== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061781== Command: ../y86 -d inputs/bad-no_elf.o
+==2061781== 
+Failed to read file
+==2061781== 
+==2061781== HEAP SUMMARY:
+==2061781==     in use at exit: 0 bytes in 0 blocks
+==2061781==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2061781== 
+==2061781== All heap blocks were freed -- no leaks are possible
+==2061781== 
+==2061781== For lists of detected and suppressed errors, rerun with: -s
+==2061781== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_bad_phdr.txt b/p3-disas/tests/valgrind/A_bad_phdr.txt
new file mode 100644
index 0000000..36e5d25
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_bad_phdr.txt
@@ -0,0 +1,15 @@
+==2061802== Memcheck, a memory error detector
+==2061802== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061802== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061802== Command: ../y86 -d inputs/bad-phdr.o
+==2061802== 
+Failed to read file
+==2061802== 
+==2061802== HEAP SUMMARY:
+==2061802==     in use at exit: 0 bytes in 0 blocks
+==2061802==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2061802== 
+==2061802== All heap blocks were freed -- no leaks are possible
+==2061802== 
+==2061802== For lists of detected and suppressed errors, rerun with: -s
+==2061802== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_bad_short_header.txt b/p3-disas/tests/valgrind/A_bad_short_header.txt
new file mode 100644
index 0000000..fd80c36
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_bad_short_header.txt
@@ -0,0 +1,15 @@
+==2061820== Memcheck, a memory error detector
+==2061820== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061820== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061820== Command: ../y86 -d inputs/bad-short_header.o
+==2061820== 
+Failed to read file
+==2061820== 
+==2061820== HEAP SUMMARY:
+==2061820==     in use at exit: 0 bytes in 0 blocks
+==2061820==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2061820== 
+==2061820== All heap blocks were freed -- no leaks are possible
+==2061820== 
+==2061820== For lists of detected and suppressed errors, rerun with: -s
+==2061820== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_bad_short_phdr.txt b/p3-disas/tests/valgrind/A_bad_short_phdr.txt
new file mode 100644
index 0000000..588ec96
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_bad_short_phdr.txt
@@ -0,0 +1,15 @@
+==2061857== Memcheck, a memory error detector
+==2061857== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061857== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061857== Command: ../y86 -d inputs/bad-short_phdr.o
+==2061857== 
+Failed to read file
+==2061857== 
+==2061857== HEAP SUMMARY:
+==2061857==     in use at exit: 0 bytes in 0 blocks
+==2061857==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2061857== 
+==2061857== All heap blocks were freed -- no leaks are possible
+==2061857== 
+==2061857== For lists of detected and suppressed errors, rerun with: -s
+==2061857== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_data.txt b/p3-disas/tests/valgrind/A_data.txt
new file mode 100644
index 0000000..9ae5373
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_data.txt
@@ -0,0 +1,20 @@
+==2061441== Memcheck, a memory error detector
+==2061441== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061441== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061441== Command: ../y86 -D inputs/data.o
+==2061441== 
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 data
+  0x200: 88 77 66 55 44 33 22 11       |   .quad 0x1122334455667788
+  0x208: 78 56 34 12 00 00 00 00       |   .quad 0x12345678
+  0x210: 42 00 00 00 00 00 00 00       |   .quad 0x42
+
+==2061441== 
+==2061441== HEAP SUMMARY:
+==2061441==     in use at exit: 0 bytes in 0 blocks
+==2061441==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2061441== 
+==2061441== All heap blocks were freed -- no leaks are possible
+==2061441== 
+==2061441== For lists of detected and suppressed errors, rerun with: -s
+==2061441== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_data_code.txt b/p3-disas/tests/valgrind/A_data_code.txt
new file mode 100644
index 0000000..c2ecc31
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_data_code.txt
@@ -0,0 +1,19 @@
+==2061311== Memcheck, a memory error detector
+==2061311== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061311== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061311== Command: ../y86 -d inputs/data.o
+==2061311== 
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 00                            |   halt
+
+==2061311== 
+==2061311== HEAP SUMMARY:
+==2061311==     in use at exit: 0 bytes in 0 blocks
+==2061311==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2061311== 
+==2061311== All heap blocks were freed -- no leaks are possible
+==2061311== 
+==2061311== For lists of detected and suppressed errors, rerun with: -s
+==2061311== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_extra_params.txt b/p3-disas/tests/valgrind/A_extra_params.txt
new file mode 100644
index 0000000..7327399
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_extra_params.txt
@@ -0,0 +1,25 @@
+==2062039== Memcheck, a memory error detector
+==2062039== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2062039== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2062039== Command: ../y86 -d inputs/onebyte.o extra params
+==2062039== 
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+==2062039== 
+==2062039== HEAP SUMMARY:
+==2062039==     in use at exit: 0 bytes in 0 blocks
+==2062039==   total heap usage: 1 allocs, 1 frees, 8,192 bytes allocated
+==2062039== 
+==2062039== All heap blocks were freed -- no leaks are possible
+==2062039== 
+==2062039== For lists of detected and suppressed errors, rerun with: -s
+==2062039== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_interleaved.txt b/p3-disas/tests/valgrind/A_interleaved.txt
new file mode 100644
index 0000000..2187f88
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_interleaved.txt
@@ -0,0 +1,36 @@
+==2061697== Memcheck, a memory error detector
+==2061697== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061697== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061697== Command: ../y86 -d -D inputs/interleaved.o
+==2061697== 
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 00                            |   halt
+
+  0x400:                               | .pos 0x400 code
+  0x400: 10                            |   nop
+  0x401: 00                            |   halt
+
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 data
+  0x200: 10 00 00 00 00 00 00 00       |   .quad 0x10
+
+  0x300:                               | .pos 0x300 rodata
+  0x300: 74 65 73 74 00                |   .string "test"
+
+  0x500:                               | .pos 0x500 data
+  0x500: 78 56 34 12 00 00 00 00       |   .quad 0x12345678
+
+  0x600:                               | .pos 0x600 rodata
+  0x600: 61 67 61 69 6e 00             |   .string "again"
+
+==2061697== 
+==2061697== HEAP SUMMARY:
+==2061697==     in use at exit: 0 bytes in 0 blocks
+==2061697==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2061697== 
+==2061697== All heap blocks were freed -- no leaks are possible
+==2061697== 
+==2061697== For lists of detected and suppressed errors, rerun with: -s
+==2061697== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_invalid.txt b/p3-disas/tests/valgrind/A_invalid.txt
new file mode 100644
index 0000000..bc7af64
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_invalid.txt
@@ -0,0 +1,20 @@
+==2061744== Memcheck, a memory error detector
+==2061744== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061744== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061744== Command: ../y86 -d inputs/invalid.o
+==2061744== 
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 30 f3 0f 00 00 00 20 31 40 13 |   irmovq 0x134031200000000f, %rbx
+Invalid opcode: 0xfd
+
+==2061744== 
+==2061744== HEAP SUMMARY:
+==2061744==     in use at exit: 0 bytes in 0 blocks
+==2061744==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2061744== 
+==2061744== All heap blocks were freed -- no leaks are possible
+==2061744== 
+==2061744== For lists of detected and suppressed errors, rerun with: -s
+==2061744== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_missing_file.txt b/p3-disas/tests/valgrind/A_missing_file.txt
new file mode 100644
index 0000000..e12054b
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_missing_file.txt
@@ -0,0 +1,25 @@
+==2061946== Memcheck, a memory error detector
+==2061946== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061946== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061946== Command: ../y86 -d
+==2061946== 
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+==2061946== 
+==2061946== HEAP SUMMARY:
+==2061946==     in use at exit: 0 bytes in 0 blocks
+==2061946==   total heap usage: 1 allocs, 1 frees, 8,192 bytes allocated
+==2061946== 
+==2061946== All heap blocks were freed -- no leaks are possible
+==2061946== 
+==2061946== For lists of detected and suppressed errors, rerun with: -s
+==2061946== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_rodata.txt b/p3-disas/tests/valgrind/A_rodata.txt
new file mode 100644
index 0000000..ddd3a53
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_rodata.txt
@@ -0,0 +1,18 @@
+==2061510== Memcheck, a memory error detector
+==2061510== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061510== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061510== Command: ../y86 -D inputs/rodata.o
+==2061510== 
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 rodata
+  0x200: 68 65 6c 6c 6f 00             |   .string "hello"
+
+==2061510== 
+==2061510== HEAP SUMMARY:
+==2061510==     in use at exit: 0 bytes in 0 blocks
+==2061510==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2061510== 
+==2061510== All heap blocks were freed -- no leaks are possible
+==2061510== 
+==2061510== For lists of detected and suppressed errors, rerun with: -s
+==2061510== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_rodata_code.txt b/p3-disas/tests/valgrind/A_rodata_code.txt
new file mode 100644
index 0000000..8f01cae
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_rodata_code.txt
@@ -0,0 +1,19 @@
+==2061349== Memcheck, a memory error detector
+==2061349== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061349== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061349== Command: ../y86 -d inputs/rodata.o
+==2061349== 
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 00                            |   halt
+
+==2061349== 
+==2061349== HEAP SUMMARY:
+==2061349==     in use at exit: 0 bytes in 0 blocks
+==2061349==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2061349== 
+==2061349== All heap blocks were freed -- no leaks are possible
+==2061349== 
+==2061349== For lists of detected and suppressed errors, rerun with: -s
+==2061349== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_rodata_long.txt b/p3-disas/tests/valgrind/A_rodata_long.txt
new file mode 100644
index 0000000..99947e5
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_rodata_long.txt
@@ -0,0 +1,24 @@
+==2062146== Memcheck, a memory error detector
+==2062146== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2062146== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2062146== Command: ../y86 -D inputs/rodata_long.o
+==2062146== 
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 rodata
+  0x200: 30 31 32 33 34 35 36 37 38 39 |   .string "0123456789"
+  0x20a: 00                            | 
+  0x20b: 68 65 6c 6c 6f 20 77 6f 72 6c |   .string "hello world"
+  0x215: 64 00                         | 
+  0x217: 61 62 63 64 65 66 67 68 69 6a |   .string "abcdefghijklmnopqrstuvwxyz"
+  0x221: 6b 6c 6d 6e 6f 70 71 72 73 74 | 
+  0x22b: 75 76 77 78 79 7a 00          | 
+
+==2062146== 
+==2062146== HEAP SUMMARY:
+==2062146==     in use at exit: 0 bytes in 0 blocks
+==2062146==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2062146== 
+==2062146== All heap blocks were freed -- no leaks are possible
+==2062146== 
+==2062146== For lists of detected and suppressed errors, rerun with: -s
+==2062146== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_rodata_multi.txt b/p3-disas/tests/valgrind/A_rodata_multi.txt
new file mode 100644
index 0000000..50e347f
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_rodata_multi.txt
@@ -0,0 +1,20 @@
+==2061670== Memcheck, a memory error detector
+==2061670== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061670== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061670== Command: ../y86 -D inputs/rodata_multi.o
+==2061670== 
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 rodata
+  0x200: 66 6f 6f 00                   |   .string "foo"
+  0x204: 77 30 30 74 00                |   .string "w00t"
+  0x209: 75 70 20 64 6f 77 6e 00       |   .string "up down"
+
+==2061670== 
+==2061670== HEAP SUMMARY:
+==2061670==     in use at exit: 0 bytes in 0 blocks
+==2061670==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2061670== 
+==2061670== All heap blocks were freed -- no leaks are possible
+==2061670== 
+==2061670== For lists of detected and suppressed errors, rerun with: -s
+==2061670== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_rodata_shakespeare.txt b/p3-disas/tests/valgrind/A_rodata_shakespeare.txt
new file mode 100644
index 0000000..33aacc7
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_rodata_shakespeare.txt
@@ -0,0 +1,34 @@
+==2062177== Memcheck, a memory error detector
+==2062177== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2062177== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2062177== Command: ../y86 -D inputs/rodata_shakespeare.o
+==2062177== 
+Disassembly of data contents:
+  0x200:                               | .pos 0x200 rodata
+  0x200: 54 6f 20 62 65 2c 20 6f 72 20 |   .string "To be, or not to be: that is the question"
+  0x20a: 6e 6f 74 20 74 6f 20 62 65 3a | 
+  0x214: 20 74 68 61 74 20 69 73 20 74 | 
+  0x21e: 68 65 20 71 75 65 73 74 69 6f | 
+  0x228: 6e 00                         | 
+  0x22a: 57 68 61 74 27 73 20 69 6e 20 |   .string "What's in a name? A rose by any other name would smell as sweet."
+  0x234: 61 20 6e 61 6d 65 3f 20 41 20 | 
+  0x23e: 72 6f 73 65 20 62 79 20 61 6e | 
+  0x248: 79 20 6f 74 68 65 72 20 6e 61 | 
+  0x252: 6d 65 20 77 6f 75 6c 64 20 73 | 
+  0x25c: 6d 65 6c 6c 20 61 73 20 73 77 | 
+  0x266: 65 65 74 2e 00                | 
+  0x26b: 42 75 74 2c 20 66 6f 72 20 6d |   .string "But, for my own part, it was Greek to me."
+  0x275: 79 20 6f 77 6e 20 70 61 72 74 | 
+  0x27f: 2c 20 69 74 20 77 61 73 20 47 | 
+  0x289: 72 65 65 6b 20 74 6f 20 6d 65 | 
+  0x293: 2e 00                         | 
+
+==2062177== 
+==2062177== HEAP SUMMARY:
+==2062177==     in use at exit: 0 bytes in 0 blocks
+==2062177==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2062177== 
+==2062177== All heap blocks were freed -- no leaks are possible
+==2062177== 
+==2062177== For lists of detected and suppressed errors, rerun with: -s
+==2062177== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_unaligned1.txt b/p3-disas/tests/valgrind/A_unaligned1.txt
new file mode 100644
index 0000000..dc7d534
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_unaligned1.txt
@@ -0,0 +1,40 @@
+==2062084== Memcheck, a memory error detector
+==2062084== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2062084== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2062084== Command: ../y86 -a -d inputs/unaligned.o
+==2062084== 
+01 00 18 01 10 00 03 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x118
+There are 3 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x004c    0x0009    0x0000    CODE      R X
+  01       0x0055    0x0002    0x0118    CODE      R X
+  02       0x0057    0x0008    0x013a    DATA      RW 
+Contents of memory from 0000 to 0009:
+  0000  70 18 01 00 00 00 00 00  00
+Contents of memory from 0118 to 011a:
+  0110                           10 00
+Contents of memory from 013a to 0142:
+  0130                                 39 30 00 00 00 00
+  0140  00 00
+Disassembly of executable contents:
+  0x000:                               | .pos 0x000 code
+  0x000: 70 18 01 00 00 00 00 00 00    |   jmp 0x118
+
+  0x118:                               | .pos 0x118 code
+  0x118:                               | _start:
+  0x118: 10                            |   nop
+  0x119: 00                            |   halt
+
+==2062084== 
+==2062084== HEAP SUMMARY:
+==2062084==     in use at exit: 0 bytes in 0 blocks
+==2062084==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2062084== 
+==2062084== All heap blocks were freed -- no leaks are possible
+==2062084== 
+==2062084== For lists of detected and suppressed errors, rerun with: -s
+==2062084== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/A_unaligned2.txt b/p3-disas/tests/valgrind/A_unaligned2.txt
new file mode 100644
index 0000000..c5768ff
--- /dev/null
+++ b/p3-disas/tests/valgrind/A_unaligned2.txt
@@ -0,0 +1,43 @@
+==2062113== Memcheck, a memory error detector
+==2062113== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2062113== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2062113== Command: ../y86 -a -d inputs/unaligned2.o
+==2062113== 
+01 00 55 05 10 00 03 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x555
+There are 3 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x004c    0x0009    0x0000    CODE      R X
+  01       0x0055    0x001f    0x0555    CODE      R X
+  02       0x0074    0x0008    0x0987    DATA      RW 
+Contents of memory from 0000 to 0009:
+  0000  70 55 05 00 00 00 00 00  00
+Contents of memory from 0555 to 0574:
+  0550                 30 f0 4d  01 00 00 00 00 00 00 30
+  0560  f3 de 00 00 00 00 00 00  00 30 f1 6f 00 00 00 00
+  0570  00 00 00 00
+Contents of memory from 0987 to 098f:
+  0980                       dd  cc bb aa 00 00 00 00
+Disassembly of executable contents:
+  0x000:                               | .pos 0x000 code
+  0x000: 70 55 05 00 00 00 00 00 00    |   jmp 0x555
+
+  0x555:                               | .pos 0x555 code
+  0x555:                               | _start:
+  0x555: 30 f0 4d 01 00 00 00 00 00 00 |   irmovq 0x14d, %rax
+  0x55f: 30 f3 de 00 00 00 00 00 00 00 |   irmovq 0xde, %rbx
+  0x569: 30 f1 6f 00 00 00 00 00 00 00 |   irmovq 0x6f, %rcx
+  0x573: 00                            |   halt
+
+==2062113== 
+==2062113== HEAP SUMMARY:
+==2062113==     in use at exit: 0 bytes in 0 blocks
+==2062113==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2062113== 
+==2062113== All heap blocks were freed -- no leaks are possible
+==2062113== 
+==2062113== For lists of detected and suppressed errors, rerun with: -s
+==2062113== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/B_iotrap.txt b/p3-disas/tests/valgrind/B_iotrap.txt
new file mode 100644
index 0000000..3058acc
--- /dev/null
+++ b/p3-disas/tests/valgrind/B_iotrap.txt
@@ -0,0 +1,24 @@
+==2061103== Memcheck, a memory error detector
+==2061103== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061103== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061103== Command: ../y86 -d inputs/iotrap.o
+==2061103== 
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: c0                            |   iotrap 0
+  0x101: c1                            |   iotrap 1
+  0x102: c2                            |   iotrap 2
+  0x103: c3                            |   iotrap 3
+  0x104: c4                            |   iotrap 4
+  0x105: c5                            |   iotrap 5
+
+==2061103== 
+==2061103== HEAP SUMMARY:
+==2061103==     in use at exit: 0 bytes in 0 blocks
+==2061103==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2061103== 
+==2061103== All heap blocks were freed -- no leaks are possible
+==2061103== 
+==2061103== For lists of detected and suppressed errors, rerun with: -s
+==2061103== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/B_jmp.txt b/p3-disas/tests/valgrind/B_jmp.txt
new file mode 100644
index 0000000..8feba32
--- /dev/null
+++ b/p3-disas/tests/valgrind/B_jmp.txt
@@ -0,0 +1,25 @@
+==2060908== Memcheck, a memory error detector
+==2060908== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2060908== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2060908== Command: ../y86 -d inputs/jmp.o
+==2060908== 
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 70 88 77 66 55 44 33 22 11    |   jmp 0x1122334455667788
+  0x109: 71 77 66 55 44 33 22 11 88    |   jle 0x8811223344556677
+  0x112: 72 66 55 44 33 22 11 88 77    |   jl 0x7788112233445566
+  0x11b: 73 55 44 33 22 11 88 77 66    |   je 0x6677881122334455
+  0x124: 74 44 33 22 11 88 77 66 55    |   jne 0x5566778811223344
+  0x12d: 75 33 22 11 88 77 66 55 44    |   jge 0x4455667788112233
+  0x136: 76 22 11 88 77 66 55 44 33    |   jg 0x3344556677881122
+
+==2060908== 
+==2060908== HEAP SUMMARY:
+==2060908==     in use at exit: 0 bytes in 0 blocks
+==2060908==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2060908== 
+==2060908== All heap blocks were freed -- no leaks are possible
+==2060908== 
+==2060908== For lists of detected and suppressed errors, rerun with: -s
+==2060908== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/B_ninebyte.txt b/p3-disas/tests/valgrind/B_ninebyte.txt
new file mode 100644
index 0000000..dfa8a3e
--- /dev/null
+++ b/p3-disas/tests/valgrind/B_ninebyte.txt
@@ -0,0 +1,20 @@
+==2060882== Memcheck, a memory error detector
+==2060882== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2060882== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2060882== Command: ../y86 -d inputs/ninebyte.o
+==2060882== 
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 70 88 77 66 55 44 33 22 11    |   jmp 0x1122334455667788
+  0x109: 80 11 22 33 44 55 66 77 88    |   call 0x8877665544332211
+
+==2060882== 
+==2060882== HEAP SUMMARY:
+==2060882==     in use at exit: 0 bytes in 0 blocks
+==2060882==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2060882== 
+==2060882== All heap blocks were freed -- no leaks are possible
+==2060882== 
+==2060882== For lists of detected and suppressed errors, rerun with: -s
+==2060882== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/B_simple.txt b/p3-disas/tests/valgrind/B_simple.txt
new file mode 100644
index 0000000..e98d6e7
--- /dev/null
+++ b/p3-disas/tests/valgrind/B_simple.txt
@@ -0,0 +1,33 @@
+==2061005== Memcheck, a memory error detector
+==2061005== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061005== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061005== Command: ../y86 -a -d inputs/simple.o
+==2061005== 
+01 00 00 01 10 00 01 00  00 00 00 00 45 4c 46 00
+Mini-ELF version 1
+Entry point 0x100
+There are 1 program headers, starting at offset 16 (0x10)
+There is no symbol table present
+There is no string table present
+ Segment   Offset    Size      VirtAddr  Type      Flags
+  00       0x0024    0x0017    0x0100    CODE      R X
+Contents of memory from 0100 to 0117:
+  0100  30 f0 68 24 00 00 00 00  00 00 30 f3 34 12 00 00
+  0110  00 00 00 00 60 03 00
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 30 f0 68 24 00 00 00 00 00 00 |   irmovq 0x2468, %rax
+  0x10a: 30 f3 34 12 00 00 00 00 00 00 |   irmovq 0x1234, %rbx
+  0x114: 60 03                         |   addq %rax, %rbx
+  0x116: 00                            |   halt
+
+==2061005== 
+==2061005== HEAP SUMMARY:
+==2061005==     in use at exit: 0 bytes in 0 blocks
+==2061005==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2061005== 
+==2061005== All heap blocks were freed -- no leaks are possible
+==2061005== 
+==2061005== For lists of detected and suppressed errors, rerun with: -s
+==2061005== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/B_simple_multi.txt b/p3-disas/tests/valgrind/B_simple_multi.txt
new file mode 100644
index 0000000..310f461
--- /dev/null
+++ b/p3-disas/tests/valgrind/B_simple_multi.txt
@@ -0,0 +1,31 @@
+==2061025== Memcheck, a memory error detector
+==2061025== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2061025== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2061025== Command: ../y86 -d inputs/simple_multi.o
+==2061025== 
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100: 10                            |   nop
+  0x101: 10                            |   nop
+  0x102: 10                            |   nop
+  0x103:                               | _start:
+  0x103: 30 f0 68 24 00 00 00 00 00 00 |   irmovq 0x2468, %rax
+  0x10d: 30 f3 34 12 00 00 00 00 00 00 |   irmovq 0x1234, %rbx
+  0x117: 60 03                         |   addq %rax, %rbx
+  0x119: 70 00 02 00 00 00 00 00 00    |   jmp 0x200
+
+  0x200:                               | .pos 0x200 code
+  0x200: 30 f1 78 56 00 00 00 00 00 00 |   irmovq 0x5678, %rcx
+  0x20a: 30 f2 14 15 00 00 00 00 00 00 |   irmovq 0x1514, %rdx
+  0x214: 61 21                         |   subq %rdx, %rcx
+  0x216: 00                            |   halt
+
+==2061025== 
+==2061025== HEAP SUMMARY:
+==2061025==     in use at exit: 0 bytes in 0 blocks
+==2061025==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2061025== 
+==2061025== All heap blocks were freed -- no leaks are possible
+==2061025== 
+==2061025== For lists of detected and suppressed errors, rerun with: -s
+==2061025== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/B_tenbyte.txt b/p3-disas/tests/valgrind/B_tenbyte.txt
new file mode 100644
index 0000000..2f6b38b
--- /dev/null
+++ b/p3-disas/tests/valgrind/B_tenbyte.txt
@@ -0,0 +1,23 @@
+==2060938== Memcheck, a memory error detector
+==2060938== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2060938== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2060938== Command: ../y86 -d inputs/tenbyte.o
+==2060938== 
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 30 f0 88 77 66 55 44 33 22 11 |   irmovq 0x1122334455667788, %rax
+  0x10a: 40 12 21 43 65 87 78 56 34 12 |   rmmovq %rcx, 0x1234567887654321(%rdx)
+  0x114: 50 12 78 56 34 12 21 43 65 87 |   mrmovq 0x8765432112345678(%rdx), %rcx
+  0x11e: 40 1f 21 43 65 87 78 56 34 12 |   rmmovq %rcx, 0x1234567887654321
+  0x128: 50 1f 78 56 34 12 21 43 65 87 |   mrmovq 0x8765432112345678, %rcx
+
+==2060938== 
+==2060938== HEAP SUMMARY:
+==2060938==     in use at exit: 0 bytes in 0 blocks
+==2060938==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2060938== 
+==2060938== All heap blocks were freed -- no leaks are possible
+==2060938== 
+==2060938== For lists of detected and suppressed errors, rerun with: -s
+==2060938== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/C_cmov.txt b/p3-disas/tests/valgrind/C_cmov.txt
new file mode 100644
index 0000000..1fdca0b
--- /dev/null
+++ b/p3-disas/tests/valgrind/C_cmov.txt
@@ -0,0 +1,25 @@
+==2060830== Memcheck, a memory error detector
+==2060830== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2060830== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2060830== Command: ../y86 -d inputs/cmov.o
+==2060830== 
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 20 01                         |   rrmovq %rax, %rcx
+  0x102: 21 23                         |   cmovle %rdx, %rbx
+  0x104: 22 45                         |   cmovl %rsp, %rbp
+  0x106: 23 67                         |   cmove %rsi, %rdi
+  0x108: 24 89                         |   cmovne %r8, %r9
+  0x10a: 25 ab                         |   cmovge %r10, %r11
+  0x10c: 26 ce                         |   cmovg %r12, %r14
+
+==2060830== 
+==2060830== HEAP SUMMARY:
+==2060830==     in use at exit: 0 bytes in 0 blocks
+==2060830==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2060830== 
+==2060830== All heap blocks were freed -- no leaks are possible
+==2060830== 
+==2060830== For lists of detected and suppressed errors, rerun with: -s
+==2060830== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/C_help.txt b/p3-disas/tests/valgrind/C_help.txt
new file mode 100644
index 0000000..19a1f54
--- /dev/null
+++ b/p3-disas/tests/valgrind/C_help.txt
@@ -0,0 +1,25 @@
+==2060717== Memcheck, a memory error detector
+==2060717== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2060717== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2060717== Command: ../y86 -h
+==2060717== 
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+==2060717== 
+==2060717== HEAP SUMMARY:
+==2060717==     in use at exit: 0 bytes in 0 blocks
+==2060717==   total heap usage: 1 allocs, 1 frees, 8,192 bytes allocated
+==2060717== 
+==2060717== All heap blocks were freed -- no leaks are possible
+==2060717== 
+==2060717== For lists of detected and suppressed errors, rerun with: -s
+==2060717== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/C_opq.txt b/p3-disas/tests/valgrind/C_opq.txt
new file mode 100644
index 0000000..cbe538e
--- /dev/null
+++ b/p3-disas/tests/valgrind/C_opq.txt
@@ -0,0 +1,22 @@
+==2060854== Memcheck, a memory error detector
+==2060854== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2060854== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2060854== Command: ../y86 -d inputs/opq.o
+==2060854== 
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 60 23                         |   addq %rdx, %rbx
+  0x102: 61 01                         |   subq %rax, %rcx
+  0x104: 62 45                         |   andq %rsp, %rbp
+  0x106: 63 67                         |   xorq %rsi, %rdi
+
+==2060854== 
+==2060854== HEAP SUMMARY:
+==2060854==     in use at exit: 0 bytes in 0 blocks
+==2060854==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2060854== 
+==2060854== All heap blocks were freed -- no leaks are possible
+==2060854== 
+==2060854== For lists of detected and suppressed errors, rerun with: -s
+==2060854== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/C_twobyte.txt b/p3-disas/tests/valgrind/C_twobyte.txt
new file mode 100644
index 0000000..0a8e39b
--- /dev/null
+++ b/p3-disas/tests/valgrind/C_twobyte.txt
@@ -0,0 +1,22 @@
+==2060757== Memcheck, a memory error detector
+==2060757== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2060757== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2060757== Command: ../y86 -d inputs/twobyte.o
+==2060757== 
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 20 01                         |   rrmovq %rax, %rcx
+  0x102: 60 23                         |   addq %rdx, %rbx
+  0x104: a0 6f                         |   pushq %rsi
+  0x106: b0 7f                         |   popq %rdi
+
+==2060757== 
+==2060757== HEAP SUMMARY:
+==2060757==     in use at exit: 0 bytes in 0 blocks
+==2060757==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2060757== 
+==2060757== All heap blocks were freed -- no leaks are possible
+==2060757== 
+==2060757== For lists of detected and suppressed errors, rerun with: -s
+==2060757== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/tests/valgrind/D_onebyte.txt b/p3-disas/tests/valgrind/D_onebyte.txt
new file mode 100644
index 0000000..153f11c
--- /dev/null
+++ b/p3-disas/tests/valgrind/D_onebyte.txt
@@ -0,0 +1,21 @@
+==2060670== Memcheck, a memory error detector
+==2060670== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==2060670== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==2060670== Command: ../y86 -d inputs/onebyte.o
+==2060670== 
+Disassembly of executable contents:
+  0x100:                               | .pos 0x100 code
+  0x100:                               | _start:
+  0x100: 00                            |   halt
+  0x101: 10                            |   nop
+  0x102: 90                            |   ret
+
+==2060670== 
+==2060670== HEAP SUMMARY:
+==2060670==     in use at exit: 0 bytes in 0 blocks
+==2060670==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==2060670== 
+==2060670== All heap blocks were freed -- no leaks are possible
+==2060670== 
+==2060670== For lists of detected and suppressed errors, rerun with: -s
+==2060670== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p3-disas/y86 b/p3-disas/y86
new file mode 100644
index 0000000..909f9af
Binary files /dev/null and b/p3-disas/y86 differ
diff --git a/p3-disas/y86.h b/p3-disas/y86.h
new file mode 100644
index 0000000..32c2464
--- /dev/null
+++ b/p3-disas/y86.h
@@ -0,0 +1,97 @@
+#ifndef __CS261_Y86__
+#define __CS261_Y86__
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#define VADDRBITS 12
+#define MEMSIZE (1 << VADDRBITS)
+#define NUMREGS 15
+
+/* type declarations */
+typedef uint8_t  byte_t;        // byte
+typedef uint64_t y86_reg_t;     // register
+typedef uint64_t address_t;     // address
+typedef bool     flag_t;        // CPU flag
+
+/* possible CPU statuses */
+typedef enum { AOK = 1, HLT, ADR, INS } y86_stat_t;
+
+/* y86 CPU data storage structure */
+typedef struct y86 {
+
+    y86_reg_t reg[NUMREGS];     // 64-bit general-purpose registers
+
+    flag_t zf;                  // zero flag
+    flag_t sf;                  // negative flag
+    flag_t of;                  // overflow flag
+
+    y86_reg_t pc;               // program counter
+
+    y86_stat_t stat;            // program status
+
+} y86_t;
+
+/* These enums are specified to match the order of the numbers for all Y86
+   instructions and operands. As such, they can be used as constants throughout
+   the code. */
+typedef enum {
+    HALT = 0, NOP, CMOV, IRMOVQ, RMMOVQ, MRMOVQ, OPQ, JUMP, CALL, RET, PUSHQ,
+    POPQ, IOTRAP, INVALID
+} y86_icode_t;
+
+typedef enum {
+    RRMOVQ = 0, CMOVLE, CMOVL, CMOVE, CMOVNE, CMOVGE, CMOVG, BADCMOV
+} y86_cmov_t;
+
+typedef enum {
+    ADD = 0, SUB, AND, XOR, BADOP
+} y86_op_t;
+
+typedef enum {
+    JMP = 0, JLE, JL, JE, JNE, JGE, JG, BADJUMP
+} y86_jump_t;
+
+typedef enum {
+    CHAROUT = 0, CHARIN, DECOUT, DECIN, STROUT, FLUSH, BADTRAP
+} y86_iotrap_t;
+
+typedef enum {
+    RAX = 0, RCX, RDX, RBX, RSP, RBP, RSI, RDI,
+    R8, R9, R10, R11, R12, R13, R14, NOREG
+} y86_regnum_t;
+
+/* Instruction storage structure; use the constants defined in enums above.
+   Comments reflect correlated information from y86 ISA sheet. See the sheet
+   for more details. */
+typedef struct y86_inst {
+
+    // opcode (first byte)
+
+    y86_icode_t icode;     // high-order 4 bits of opcode (instruction code)
+    union {
+        int b;             // low-order 4 bits of opcode (instruction function)
+        y86_cmov_t cmov;        //   (cmovXX only)
+        y86_op_t op;            //   (OPq only)
+        y86_jump_t jump;        //   (jXX only)
+        y86_iotrap_t trap;      //   (iotrap only)
+    } ifun;
+
+    // registers (second byte, if present based on icode)
+
+    y86_regnum_t ra;            // rA           (high-order 4 bits)
+    y86_regnum_t rb;            // rB           (low-order 4 bits)
+
+    // valC (eight bytes, if present, starting at either second or third byte)
+
+    union {
+        address_t dest;         // Dest         (jXX and call only)
+        int64_t v;              // V            (irmovq only)
+        int64_t d;              // D            (rmmovq and mrmovq only)
+    } valC;
+
+    address_t valP;             // valP         (address of next instruction)
+
+} y86_inst_t;
+
+#endif
diff --git a/p4-interp/.clang-format b/p4-interp/.clang-format
new file mode 100644
index 0000000..62fb300
--- /dev/null
+++ b/p4-interp/.clang-format
@@ -0,0 +1,7 @@
+BasedOnStyle: LLVM
+BreakBeforeBraces: Attach
+IndentCaseLabels: true
+IndentWidth: 4
+TabWidth: 4
+UseTab: Never
+ColumnLimit: 80
\ No newline at end of file
diff --git a/p4-interp/Makefile b/p4-interp/Makefile
new file mode 100644
index 0000000..3061743
--- /dev/null
+++ b/p4-interp/Makefile
@@ -0,0 +1,51 @@
+#
+# Simple Makefile
+# Mike Lam, James Madison University, August 2016
+#
+# This makefile builds a simple application that contains a main module
+# (specified by the EXE variable) and a predefined list of additional modules
+# (specified by the MODS variable). If there are any external library
+# dependencies (e.g., the math library, "-lm"), list them in the LIBS variable.
+# If there are any precompiled object files, list them in the OBJS variable.
+#
+# By default, this makefile will build the project with debugging symbols and
+# without optimization. To change this, edit or remove the "-g" and "-O0"
+# options in CFLAGS and LDFLAGS accordingly.
+#
+# By default, this makefile build the application using the GNU C compiler,
+# adhering to the C99 standard with all warnings enabled.
+
+
+# application-specific settings and run target
+
+EXE=y86
+MODS=p4-interp.o
+OBJS=p1-check.o p2-load.o p3-disas.o
+LIBS=
+
+default: $(EXE)
+
+test: $(EXE)
+	TPREFIX=tests/ make -C tests test
+
+# compiler/linker settings
+
+CC=gcc
+CFLAGS=-g -O0 -Wall --std=c99 -pedantic
+LDFLAGS=-g -O0
+
+
+# build targets
+
+$(EXE): main.o $(MODS) $(OBJS)
+	$(CC) $(LDFLAGS) -o $(EXE) $^ $(LIBS)
+
+%.o: %.c
+	$(CC) -c $(CFLAGS) $<
+
+clean:
+	rm -f $(EXE) main.o $(MODS)
+	make -C tests clean
+
+.PHONY: default clean
+
diff --git a/p4-interp/elf.h b/p4-interp/elf.h
new file mode 100644
index 0000000..92d56bf
--- /dev/null
+++ b/p4-interp/elf.h
@@ -0,0 +1,98 @@
+#ifndef __CS261_ELF__
+#define __CS261_ELF__
+
+#include <stdio.h>
+#include <stdint.h>
+
+#include "y86.h"
+
+/*
+   Mini-ELF file format (byte 0 = first byte of the file)
+   +----------------------------------------------+
+   | header (elf_hdr_t) - 16 bytes                |
+   +----------------------------------------------+
+   | program headers (elf_phdr_t) - 20 bytes each |
+   +----------------------------------------------+
+   | program segments - variable length of bytes  |
+   +----------------------------------------------+
+   | symbol table - each entry is 4 bytes each    |
+   +----------------------------------------------+
+   | string table - variable length of strings    |
+   +----------------------------------------------+
+
+   ELF header structure:
+   +----------------------------------------------------------------------------+
+   |  0   1  |  2   3  |  4   5  |  6   7  |  8   9  | 10  11  | 12  13  14  15 |
+   | version | entry   | phdr    | numphdr | symtab  | strtab  | magic number   |
+   +----------------------------------------------------------------------------+
+
+   Sample ELF header (all entries in hex, format is little endian):
+   +----------------------------------------------------------------------------+
+   |  01  00 |  00  01 |  10  00 |  05  00 |  ac  00 |  c2  00 | 45  4c  46  00 |
+   | version | entry   | phdr    | numphdr | symtab  | strtab  | magic number   |
+   +----------------------------------------------------------------------------+
+
+   version = 0x0001     entry = 0x0100      phdr = 0x0010     numphdr = 0x0005
+   symtab = 0x00ac      strtab = 0x00c2     magic = "ELF\0"
+
+   Interpretation:
+   This file was created under version 1 of this format. When the program is
+   loaded into memory, the instruct at address 0x100 (256) will be executed
+   first. The first program header (which indicates segments in this file)
+   starts at offset 0x10 (16) into the file, and there are 5 program headers
+   total. The symbol table starts at offset 0xac (172) into this file, and the
+   string table starts at offset 0xc2 (194). The magic number is the string
+   "ELF\0" and is for error checking.
+*/
+typedef struct __attribute__((__packed__)) elf {
+    uint16_t e_version;     /* version should be 1 */
+    uint16_t e_entry;       /* entry point of program */
+    uint16_t e_phdr_start;  /* start of program headers */
+    uint16_t e_num_phdr;    /* number of program headers */
+    uint16_t e_symtab;      /* start of symbol table */
+    uint16_t e_strtab;      /* start of string table */
+    uint32_t magic;         /* ELF */
+} elf_hdr_t;
+
+typedef enum {
+    DATA, CODE, STACK, HEAP, UNKNOWN
+} elf_segtype_t;
+
+/*
+   ELF program header structure (describing segments):
+   +-----------------------------------------------------------------------+
+   |  0  1  2  3 |  4  5  6  7 |  8  9 10 11 | 12 13 | 14 15 | 16 17 18 19 |
+   | offset      | size        | virt addr   | type  | flags | magic number|
+   +-----------------------------------------------------------------------+
+
+   Flags store segment permissions as RWX (read/write/execute) in binary.
+     Examples:      100 (binary) = 4 (decimal/hex) = read-only    (R  )
+                    101 (binary) = 5 (decimal/hex) = read-execute (R X)
+                    110 (binary) = 6 (decimal/hex) = read-write   (RW )
+
+   Sample ELF program header (all entries in hex, format is little endian):
+   +-----------------------------------------------------------------------+
+   | 74 00 00 00 | 12 00 00 00 | 00 01 00 00 | 01 00 | 05 00 | ef be ad de |
+   | offset      | size        | virt addr   | type  | flags | magic number|
+   +-----------------------------------------------------------------------+
+
+   offset = 0x00000074    size = 0x00000012           virt addr = 0x00000100
+   type = 0x0001 (CODE)   flags = 0x0005 (RX)         magic = 0xDEADBEEF
+
+   Interpretation:
+   The segment starts at offset 0x74 (116) in the file, and it is 0x12 (18)
+   bytes in size. It will be loaded into memory address 0x100 (256). Since it
+   is a CODE segment, it needs to have read-execute (RX) permissions attached.
+   The magic number is the value 0xDEADBEEF and is for error checking.
+*/
+typedef struct __attribute__((__packed__)) elf_phdr {
+    uint32_t p_offset;      /* beginning of the segment in the file (in bytes) */
+    uint32_t p_size;        /* number of bytes in the segment */
+    uint32_t p_vaddr;       /* intended virtual address of the beginning of
+                               the segment in a running program's memory */
+    uint16_t p_type;        /* segment type (e.g., code, data, etc.) */
+    uint16_t p_flags;       /* permissions flags */
+    uint32_t magic;         /* DEADBEEF */
+} elf_phdr_t;
+
+#endif
diff --git a/p4-interp/main.c b/p4-interp/main.c
new file mode 100644
index 0000000..45f4cc3
--- /dev/null
+++ b/p4-interp/main.c
@@ -0,0 +1,246 @@
+/*
+ * CS 261: Main driver
+ *
+ * Name: Nicholas Tamassia
+ *
+ * This code was developed in compliance with the JMU honor code
+ */
+
+#include "p1-check.h"
+#include "p2-load.h"
+#include "p3-disas.h"
+#include "p4-interp.h"
+
+/*
+ * helper function for printing help text
+ */
+void usage(char **argv) {
+    printf("Usage: %s <option(s)> mini-elf-file\n", argv[0]);
+    printf(" Options are:\n");
+    printf("  -h      Display usage\n");
+    printf("  -H      Show the Mini-ELF header\n");
+    printf("  -a      Show all with brief memory\n");
+    printf("  -f      Show all with full memory\n");
+    printf("  -s      Show the program headers\n");
+    printf("  -m      Show the memory contents (brief)\n");
+    printf("  -M      Show the memory contents (full)\n");
+    printf("  -d      Disassemble code contents\n");
+    printf("  -D      Disassemble data contents\n");
+    printf("  -e      Execute program\n");
+    printf("  -E      Execute program (trace mode)\n");
+}
+
+void exit_file_error(FILE *file) {
+    if (file) {
+        fclose(file);
+    }
+
+    printf("Failed to read file\n");
+    exit(EXIT_FAILURE);
+}
+
+void execute_y86(y86_t *cpu, byte_t *memory, bool trace) {
+    bool cnd = false;
+    y86_reg_t valA = 0;
+    y86_reg_t valE = 0;
+
+    printf("Beginning execution at 0x%04lx\n", cpu->pc);
+
+    /* Dump initial state of cpu */
+    if (trace) {
+        dump_cpu_state(cpu);
+    }
+
+    int execution_count = 0;
+
+    while (cpu->stat == AOK) {
+        y86_inst_t inst = fetch(cpu, memory);
+
+        if (cpu->stat == ADR || cpu->stat == INS) {
+            if (trace) {
+                printf("\nInvalid instruction at 0x%04lx\n", cpu->pc);
+            }
+            break;
+        }
+
+        if (trace) {
+            printf("\nExecuting: ");
+            disassemble(&inst);
+            printf("\n");
+        }
+
+        valE = decode_execute(cpu, &inst, &cnd, &valA);
+        memory_wb_pc(cpu, &inst, memory, cnd, valA, valE);
+
+        if (inst.icode == IOTRAP && cpu->stat == HLT) {
+            printf("I/O Error\n");
+        }
+
+        if (trace && cpu->stat == AOK) {
+            dump_cpu_state(cpu);
+        }
+
+        execution_count++;
+    }
+
+    /* Final state of the cpu */
+    dump_cpu_state(cpu);
+
+    printf("Total execution count: %d\n", execution_count);
+
+    if (trace) {
+        printf("\n");
+        dump_memory(memory, 0, MEMSIZE);
+    }
+}
+
+int main(int argc, char **argv) {
+    int c;
+    bool show_elf_header = false;
+    bool show_program_header = false;
+    bool show_memory_brief = false;
+    bool show_memory_full = false;
+    bool show_code = false;
+    bool show_data = false;
+    bool execute_default = false;
+    bool execute_trace = false;
+
+    while ((c = getopt(argc, argv, "hHafsmMdDeE")) != -1) {
+        switch (c) {
+            case 'h':
+                usage(argv);
+                return EXIT_SUCCESS;
+            case 'H':
+                show_elf_header = true;
+                break;
+            case 'a':
+                show_elf_header = true;
+                show_program_header = true;
+                show_memory_brief = true;
+                break;
+            case 'f':
+                show_elf_header = true;
+                show_program_header = true;
+                show_memory_full = true;
+                break;
+            case 's':
+                show_program_header = true;
+                break;
+            case 'm':
+                show_memory_brief = true;
+                break;
+            case 'M':
+                show_memory_full = true;
+                break;
+            case 'd':
+                show_code = true;
+                break;
+            case 'D':
+                show_data = true;
+                break;
+            case 'e':
+                execute_default = true;
+                break;
+            case 'E':
+                execute_trace = true;
+                break;
+            default:
+                usage(argv);
+                return EXIT_FAILURE;
+        }
+    }
+
+    /* File path was not the last argument */
+    bool invalid_arguments = optind != argc - 1;
+    /* Attempted to ask for brief and full memory at same time */
+    bool memory_flag_conflict = show_memory_brief && show_memory_full;
+    /* Attempted to execute program in both default and trace mode */
+    bool execute_flag_conflict = execute_default && execute_trace;
+
+    if (invalid_arguments || memory_flag_conflict || execute_flag_conflict) {
+        usage(argv);
+        return EXIT_FAILURE;
+    }
+
+    elf_hdr_t header = {0};
+    FILE *header_file = fopen(argv[optind], "r");
+
+    /* Read contents of header_file into header */
+    if (!read_header(header_file, &header)) {
+        exit_file_error(header_file);
+    }
+
+    if (show_elf_header) {
+        dump_header(&header);
+    }
+
+    elf_phdr_t phdrs[header.e_num_phdr];
+    memset(phdrs, 0, sizeof(phdrs));
+
+    /* Read program headers into phdrs array */
+    for (int i = 0; i < header.e_num_phdr; i++) {
+        uint16_t offset = header.e_phdr_start + i * sizeof(elf_phdr_t);
+        if (!read_phdr(header_file, offset, &phdrs[i])) {
+            exit_file_error(header_file);
+        }
+    }
+
+    if (show_program_header) {
+        dump_phdrs(header.e_num_phdr, phdrs);
+    }
+
+    byte_t memory[MEMSIZE];
+    memset(memory, 0, MEMSIZE);
+
+    /* Read memory segments into memory array */
+    for (int i = 0; i < header.e_num_phdr; i++) {
+        if (!load_segment(header_file, memory, &phdrs[i])) {
+            exit_file_error(header_file);
+        }
+    }
+
+    fclose(header_file);
+
+    if (show_memory_brief) {
+        for (int i = 0; i < header.e_num_phdr; i++) {
+            uint32_t start = phdrs[i].p_vaddr;
+            uint32_t end = start + phdrs[i].p_size;
+
+            dump_memory(memory, start, end);
+        }
+    } else if (show_memory_full) {
+        dump_memory(memory, 0, MEMSIZE);
+    }
+
+    if (show_code) {
+        printf("Disassembly of executable contents:\n");
+
+        for (int i = 0; i < header.e_num_phdr; i++) {
+            if (phdrs[i].p_type == CODE) {
+                disassemble_code(memory, &phdrs[i], &header);
+            }
+        }
+    }
+
+    if (show_data) {
+        printf("Disassembly of data contents:\n");
+
+        for (int i = 0; i < header.e_num_phdr; i++) {
+            if (phdrs[i].p_type == DATA && phdrs[i].p_flags == 4) {
+                disassemble_rodata(memory, &phdrs[i]);
+            } else if (phdrs[i].p_type == DATA) {
+                disassemble_data(memory, &phdrs[i]);
+            }
+        }
+    }
+
+    if (execute_default || execute_trace) {
+        y86_t cpu = {0};
+        cpu.stat = AOK;
+        cpu.pc = header.e_entry;
+
+        execute_y86(&cpu, memory, execute_trace);
+    }
+
+    return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/p4-interp/main.o b/p4-interp/main.o
new file mode 100644
index 0000000..5812569
Binary files /dev/null and b/p4-interp/main.o differ
diff --git a/p4-interp/p1-check.h b/p4-interp/p1-check.h
new file mode 100644
index 0000000..5ce84e9
--- /dev/null
+++ b/p4-interp/p1-check.h
@@ -0,0 +1,29 @@
+#ifndef __CS261_P1__
+#define __CS261_P1__
+
+#include <getopt.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "elf.h"
+
+/**
+ * @brief Load a Mini-ELF header from an open file stream
+ *
+ * @param file File stream to use for input
+ * @param hdr Pointer to region where the Mini-ELF header should be loaded
+ * @returns True if the header was successfully loaded and verified, false otherwise
+ */
+bool read_header (FILE *file, elf_hdr_t *hdr);
+
+/**
+ * @brief Print Mini-ELF header information to standard out
+ *
+ * @param hdr Header with info to print
+ */
+void dump_header (elf_hdr_t *hdr);
+
+#endif
diff --git a/p4-interp/p1-check.o b/p4-interp/p1-check.o
new file mode 100644
index 0000000..a943a48
Binary files /dev/null and b/p4-interp/p1-check.o differ
diff --git a/p4-interp/p2-load.h b/p4-interp/p2-load.h
new file mode 100644
index 0000000..e15cfa7
--- /dev/null
+++ b/p4-interp/p2-load.h
@@ -0,0 +1,52 @@
+#ifndef __CS261_P2__
+#define __CS261_P2__
+
+#include <getopt.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "elf.h"
+#include "y86.h"
+
+/**
+ * @brief Load a Mini-ELF program header from an open file stream
+ *
+ * @param file File stream to use for input
+ * @param offset Byte offset in file where the program header is located
+ * @param phdr Pointer to memory where the Mini-ELF program header should be loaded
+ * @returns True if the header was successfully loaded and verified, false otherwise
+ */
+bool read_phdr (FILE *file, uint16_t offset, elf_phdr_t *phdr);
+
+/**
+ * @brief Load a Mini-ELF program segment from an open file stream
+ *
+ * @param file File stream to use for input
+ * @param memory Pointer to the beginning of the Y86 address space into which
+ * the segment should be loaded
+ * @param phdr Pointer to the program header for the segment that should be loaded
+ * @returns True if the segment was successfully loaded, false otherwise
+ */
+bool load_segment (FILE *file, byte_t *memory, elf_phdr_t *phdr);
+
+/**
+ * @brief Print Mini-ELF program header information to standard out
+ *
+ * @param numphdrs Number of program headers to print
+ * @param phdrs Pointer to array of program headers with info to print
+ */
+void dump_phdrs (uint16_t numphdrs, elf_phdr_t *phdrs);
+
+/**
+ * @brief Print a portion of a Y86 address space
+ *
+ * @param memory Pointer to the beginning of the Y86 address space
+ * @param start Byte offset where printing should begin
+ * @param end Byte offset where printing should end
+ */
+void dump_memory (byte_t *memory, uint16_t start, uint16_t end);
+
+#endif
diff --git a/p4-interp/p2-load.o b/p4-interp/p2-load.o
new file mode 100644
index 0000000..657b810
Binary files /dev/null and b/p4-interp/p2-load.o differ
diff --git a/p4-interp/p3-disas.h b/p4-interp/p3-disas.h
new file mode 100644
index 0000000..116ac49
--- /dev/null
+++ b/p4-interp/p3-disas.h
@@ -0,0 +1,55 @@
+#ifndef __CS261_P3__
+#define __CS261_P3__
+
+#include <getopt.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "elf.h"
+#include "y86.h"
+
+/**
+ * @brief Load a Y86 instruction from memory
+ *
+ * @param cpu Pointer to Y86 CPU structure with the PC address to be loaded
+ * @param memory Pointer to the beginning of the Y86 address space
+ * @returns Populated Y86 instruction structure
+ */
+y86_inst_t fetch (y86_t *cpu, byte_t *memory);
+
+/**
+ * @brief Print the disassembly of a Y86 instruction to standard out
+ *
+ * @param inst Pointer to Y86 instruction structure to be printed
+ */
+void disassemble (y86_inst_t *inst);
+
+/**
+ * @brief Print the disassembly of a Y86 code segment
+ *
+ * @param memory Pointer to the beginning of the Y86 address space
+ * @param phdr Program header of segment to be printed
+ * @param hdr File header (needed to detect the entry point)
+ */
+void disassemble_code   (byte_t *memory, elf_phdr_t *phdr, elf_hdr_t *hdr);
+
+/**
+ * @brief Print the disassembly of a Y86 read/write data segment
+ *
+ * @param memory Pointer to the beginning of the Y86 address space
+ * @param phdr Program header of segment to be printed
+ */
+void disassemble_data   (byte_t *memory, elf_phdr_t *phdr);
+
+/**
+ * @brief Print the disassembly of a Y86 read-only data segment
+ *
+ * @param memory Pointer to the beginning of the Y86 address space
+ * @param phdr Program header of segment to be printed
+ */
+void disassemble_rodata (byte_t *memory, elf_phdr_t *phdr);
+
+#endif
diff --git a/p4-interp/p3-disas.o b/p4-interp/p3-disas.o
new file mode 100644
index 0000000..b890251
Binary files /dev/null and b/p4-interp/p3-disas.o differ
diff --git a/p4-interp/p4-interp.c b/p4-interp/p4-interp.c
new file mode 100644
index 0000000..6fa69ea
--- /dev/null
+++ b/p4-interp/p4-interp.c
@@ -0,0 +1,355 @@
+/*
+ * CS 261 PA4: Mini-ELF interpreter
+ *
+ * Name: Nicholas Tamassia
+ *
+ * This code was developed in compliance with the JMU honor code
+ */
+
+#include "p4-interp.h"
+
+/**********************************************************************
+ *                         REQUIRED FUNCTIONS
+ *********************************************************************/
+
+bool cmov_cond(y86_t *cpu, y86_cmov_t ifun);
+
+bool cmov_cond(y86_t *cpu, y86_cmov_t ifun) {
+    bool equals = cpu->zf;
+    bool less_than = cpu->sf != cpu->of;
+
+    switch (ifun) {
+        case RRMOVQ:
+            return true;
+        case CMOVLE:
+            return less_than || equals;
+        case CMOVL:
+            return less_than && !equals;
+        case CMOVE:
+            return equals;
+        case CMOVNE:
+            return !equals;
+        case CMOVGE:
+            return !less_than || equals;
+        case CMOVG:
+            return !less_than && !equals;
+        case BADCMOV:
+        default:
+            cpu->stat = INS;
+            return false;
+    }
+}
+
+int64_t OP(y86_t *cpu, y86_op_t ifun, int64_t valA, int64_t valB);
+
+int64_t OP(y86_t *cpu, y86_op_t ifun, int64_t valA, int64_t valB) {
+    int64_t result = 0;
+
+    switch (ifun) {
+        case ADD:
+            result = valA + valB;
+            cpu->of = ((valA > 0 && valB > 0 && result < 0) ||
+                       (valA < 0 && valB < 0 && result > 0));
+            break;
+        case SUB:
+            result = valB - valA;
+            cpu->of = ((valA < 0 && valB > 0 && result < 0) ||
+                       (valA > 0 && valB < 0 && result > 0));
+            break;
+        case AND:
+            result = valA & valB;
+            cpu->of = false;
+            break;
+        case XOR:
+            result = valA ^ valB;
+            cpu->of = false;
+            break;
+        case BADOP:
+        default:
+            cpu->stat = INS;
+            return 0;
+    }
+
+    cpu->sf = result < 0;
+    cpu->zf = result == 0;
+    return result;
+}
+
+bool jmp_cond(y86_t *cpu, y86_jump_t ifun);
+
+bool jmp_cond(y86_t *cpu, y86_jump_t ifun) {
+    bool equals = cpu->zf;
+    bool less_than = cpu->sf != cpu->of;
+
+    switch (ifun) {
+        case JMP:
+            return true;
+        case JLE:
+            return less_than || equals;
+        case JL:
+            return less_than && !equals;
+        case JE:
+            return equals;
+        case JNE:
+            return !equals;
+        case JGE:
+            return !less_than || equals;
+        case JG:
+            return !less_than && !equals;
+        case BADJUMP:
+        default:
+            cpu->stat = INS;
+            return false;
+    }
+}
+
+y86_reg_t decode_execute(y86_t *cpu, y86_inst_t *inst, bool *cnd,
+                         y86_reg_t *valA) {
+
+    y86_reg_t valE = 0;
+
+    if (cpu == NULL) {
+        return valE;
+    }
+
+    if (inst == NULL || cnd == NULL || valA == NULL) {
+        cpu->stat = INS;
+        return valE;
+    }
+
+    switch (inst->icode) {
+        case HALT:
+            cpu->stat = HLT;
+            break;
+        case NOP:
+            break;
+        case CMOV:
+            *valA = cpu->reg[inst->ra];
+            valE = *valA;
+            *cnd = cmov_cond(cpu, inst->ifun.cmov);
+            break;
+        case IRMOVQ:
+            valE = inst->valC.v;
+            break;
+        case RMMOVQ:
+            *valA = cpu->reg[inst->ra];
+            valE = cpu->reg[inst->rb] + inst->valC.d;
+            break;
+        case MRMOVQ:
+            valE = cpu->reg[inst->rb] + inst->valC.d;
+            break;
+        case OPQ:
+            *valA = cpu->reg[inst->ra];
+            valE = OP(cpu, inst->ifun.op, *valA, cpu->reg[inst->rb]);
+            break;
+        case JUMP:
+            *cnd = jmp_cond(cpu, inst->ifun.jump);
+            break;
+        case CALL:
+            valE = cpu->reg[RSP] - 8;
+            break;
+        case PUSHQ:
+            *valA = cpu->reg[inst->ra];
+            valE = cpu->reg[RSP] - 8;
+            break;
+        case POPQ:
+        case RET:
+            *valA = cpu->reg[RSP];
+            valE = cpu->reg[RSP] + 8;
+            break;
+        case IOTRAP:
+            break;
+        case INVALID:
+        default:
+            cpu->stat = INS;
+            break;
+    }
+
+    return valE;
+}
+
+bool validate_address(y86_reg_t dest_address, size_t size, y86_t *cpu);
+
+bool validate_address(y86_reg_t dest_address, size_t size, y86_t *cpu) {
+    bool valid = dest_address <= MEMSIZE - size;
+    if (!valid) {
+        cpu->stat = ADR;
+    }
+    return valid;
+}
+
+char buffer[100];
+int buffer_offset = 0;
+
+void iotrap(y86_t *cpu, y86_iotrap_t ifun, byte_t *memory);
+
+void iotrap(y86_t *cpu, y86_iotrap_t ifun, byte_t *memory) {
+    int64_t dec = 0;
+    y86_reg_t rdi = cpu->reg[RDI];
+    y86_reg_t rsi = cpu->reg[RSI];
+
+    char *start = buffer + buffer_offset;
+    size_t space = sizeof(buffer) - buffer_offset;
+
+    switch (ifun) {
+        case CHAROUT:
+            if (validate_address(rsi, 1, cpu)) {
+                buffer[buffer_offset++] = memory[rsi];
+            }
+            break;
+        case CHARIN:
+            if (validate_address(rdi, 1, cpu) &&
+                scanf("%c", memory + rdi) <= 0) {
+                cpu->stat = HLT;
+            }
+            break;
+        case DECOUT:
+            if (validate_address(rsi, sizeof(dec), cpu)) {
+                memcpy(&dec, memory + rsi, sizeof(dec));
+                buffer_offset += snprintf(start, space, "%ld", dec);
+            }
+            break;
+        case DECIN:
+            if (!validate_address(rdi, sizeof(dec), cpu)) {
+                break;
+            }
+
+            if (scanf("%ld", &dec) <= 0) {
+                cpu->stat = HLT;
+            } else {
+                memcpy(memory + rdi, &dec, sizeof(dec));
+            }
+            break;
+        case STROUT:
+            if (validate_address(rsi, 1, cpu)) {
+                buffer_offset += snprintf(start, space, "%s", memory + rsi);
+            }
+            break;
+        case FLUSH:
+            printf("%s", buffer);
+            memset(buffer, 0, sizeof(buffer));
+            buffer_offset = 0;
+            break;
+        case BADTRAP:
+        default:
+            cpu->stat = INS;
+            break;
+    }
+}
+
+void memory_wb_pc(y86_t *cpu, y86_inst_t *inst, byte_t *memory, bool cnd,
+                  y86_reg_t valA, y86_reg_t valE) {
+
+    if (cpu == NULL) {
+        return;
+    }
+
+    if (inst == NULL || memory == NULL) {
+        cpu->stat = INS;
+        return;
+    }
+
+    y86_reg_t *RA = &cpu->reg[inst->ra];
+    y86_reg_t *RB = &cpu->reg[inst->rb];
+
+    switch (inst->icode) {
+        case HALT:
+        case NOP:
+            cpu->pc = inst->valP;
+            break;
+        case CMOV:
+            if (cnd) {
+                *RB = valE;
+            }
+            cpu->pc = inst->valP;
+            break;
+        case IRMOVQ:
+        case OPQ:
+            *RB = valE;
+            cpu->pc = inst->valP;
+            break;
+        case RMMOVQ:
+            if (validate_address(valE, sizeof(valA), cpu)) {
+                memcpy(memory + valE, &valA, sizeof(valA));
+            }
+            cpu->pc = inst->valP;
+            break;
+        case MRMOVQ:
+            if (validate_address(valE, sizeof(*RA), cpu)) {
+                memcpy(RA, memory + valE, sizeof(*RA));
+            }
+            cpu->pc = inst->valP;
+            break;
+        case JUMP:
+            cpu->pc = cnd ? inst->valC.dest : inst->valP;
+            break;
+        case CALL:
+            if (validate_address(valE, sizeof(inst->valP), cpu)) {
+                memcpy(memory + valE, &inst->valP, sizeof(inst->valP));
+                cpu->reg[RSP] = valE;
+            }
+            cpu->pc = inst->valC.dest;
+            break;
+        case RET:
+            if (validate_address(valA, sizeof(cpu->pc), cpu)) {
+                memcpy(&cpu->pc, memory + valA, sizeof(cpu->pc));
+                cpu->reg[RSP] = valE;
+            }
+            break;
+        case PUSHQ:
+            if (validate_address(valE, sizeof(valA), cpu)) {
+                memcpy(memory + valE, &valA, sizeof(valA));
+                cpu->reg[RSP] = valE;
+            }
+            cpu->pc = inst->valP;
+            break;
+        case POPQ:
+            if (validate_address(valA, sizeof(*RA), cpu)) {
+                memcpy(RA, memory + valA, sizeof(*RA));
+                cpu->reg[RSP] = valE;
+            }
+            cpu->pc = inst->valP;
+            break;
+        case IOTRAP:
+            iotrap(cpu, inst->ifun.trap, memory);
+            cpu->pc = inst->valP;
+            break;
+        case INVALID:
+        default:
+            break;
+    }
+}
+
+/**********************************************************************
+ *                         OPTIONAL FUNCTIONS
+ *********************************************************************/
+
+const char *registers[] = {"rax", "rcx", "rdx", "rbx", "rsp",
+                           "rbp", "rsi", "rdi", "r8",  "r9",
+                           "r10", "r11", "r12", "r13", "r14"};
+
+const char *status_codes[] = {"INVALID", "AOK", "HLT", "ADR", "INS"};
+
+void dump_cpu_state(y86_t *cpu) {
+    printf("Y86 CPU state:\n");
+
+    char buffer[50];
+
+    snprintf(buffer, sizeof(buffer), "PC: %016lx", cpu->pc);
+
+    printf("%24s", buffer);
+
+    snprintf(buffer, sizeof(buffer), "flags: Z%d S%d O%d     %3s", cpu->zf,
+             cpu->sf, cpu->of, status_codes[cpu->stat]);
+
+    printf("  %24s\n", buffer);
+
+    for (int i = 0; i < NUMREGS; i++) {
+        snprintf(buffer, sizeof(buffer), "%%%s: %016lx", registers[i],
+                 cpu->reg[i]);
+
+        printf("%24s", buffer);
+
+        printf((i % 2 == 0 && i < NUMREGS - 1) ? "  " : "\n");
+    }
+}
diff --git a/p4-interp/p4-interp.h b/p4-interp/p4-interp.h
new file mode 100644
index 0000000..de136f9
--- /dev/null
+++ b/p4-interp/p4-interp.h
@@ -0,0 +1,47 @@
+#ifndef __CS261_P4__
+#define __CS261_P4__
+
+#include <getopt.h>
+#include <stdbool.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "elf.h"
+#include "y86.h"
+
+/**
+ * @brief Read register values and execute ALU operation
+ *
+ * @param cpu Y86 CPU structure
+ * @param inst Y86 instruction structure for currently-executing instruction
+ * @param cnd Pointer to boolean flag to be set for conditional jumps and moves
+ * @param valA Pointer to Y86 register for passing valA to later stages
+ * @returns Result of execute phase (valE)
+ */
+y86_reg_t decode_execute (y86_t *cpu, y86_inst_t *inst, bool *cnd, y86_reg_t *valA);
+
+/**
+ * @brief Perform any memory read/write, write register values, and update the PC
+ *
+ * @param cpu Y86 CPU structure
+ * @param inst Y86 instruction structure for currently-executing instruction
+ * @param memory Pointer to beginning of the Y86 address space
+ * @param cnd Flag that indicates whether a conditional jumps or move should happen
+ * @param valA Register with valA from earlier stages
+ * @param valE Register with valE from earlier stages
+ */
+
+void memory_wb_pc (y86_t *cpu, y86_inst_t *inst, byte_t *memory,
+        bool cnd, y86_reg_t valA, y86_reg_t valE);
+
+/**
+ * @brief Print info about a Y86 CPU to standard out
+ *
+ * @param cpu Pointer to Y86 CPU structure to print
+ */
+void dump_cpu_state (y86_t *cpu);
+
+#endif
diff --git a/p4-interp/p4-interp.o b/p4-interp/p4-interp.o
new file mode 100644
index 0000000..3aab9c7
Binary files /dev/null and b/p4-interp/p4-interp.o differ
diff --git a/p4-interp/tests/Makefile b/p4-interp/tests/Makefile
new file mode 100644
index 0000000..4ccd4e1
--- /dev/null
+++ b/p4-interp/tests/Makefile
@@ -0,0 +1,81 @@
+#
+# Simple Test Makefile
+# Mike Lam, James Madison University, August 2016
+#
+# This version of the Makefile includes support for building a test suite. The
+# recommended framework is Check (http://check.sourceforge.net/). To build and
+# run the test suite, execute the "test" target. The test suite must be located
+# in a module called "testsuite". The MODS, LIBS, and OBJS variables work as
+# they do in the main Makefile.
+#
+# To change the default build target (which executes when you just type
+# "make"), change the right-hand side of the definition of the "default"
+# target.
+#
+# By default, this makefile will build the project with debugging symbols and
+# without optimization. To change this, edit or remove the "-g" and "-O0"
+# options in CFLAGS and LDFLAGS accordingly.
+#
+# By default, this makefile build the application using the GNU C compiler,
+# adhering to the C99 standard with all warnings enabled.
+
+
+# application-specific settings and run target
+
+EXE=../y86
+TEST=testsuite
+MODS=public.o
+OBJS=../p1-check.o ../p2-load.o ../p3-disas.o ../p4-interp.o private.o
+LIBS=
+
+UTESTOUT=utests.txt
+ITESTOUT=itests.txt
+
+default: $(TEST)
+
+$(EXE):
+	make -C ../
+
+test: utest itest
+	@echo "========================================"
+
+utest: $(EXE) $(TEST)
+	@echo "========================================"
+	@echo "             UNIT TESTS"
+	@./$(TEST) 2>/dev/null >$(UTESTOUT)
+	@cat $(UTESTOUT) | sed -n -e '/Checks/,$$p' | sed -e 's/^private.*:[EF]://g'
+
+itest: $(EXE)
+	@echo "========================================"
+	@echo "          INTEGRATION TESTS"
+	@./integration.sh | tee $(ITESTOUT)
+
+
+# compiler/linker settings
+
+CC=gcc
+CFLAGS=-g -O0 -Wall --std=c99 -pedantic
+LDFLAGS=-g -O0
+
+CFLAGS+=-I/opt/homebrew/include -Wno-gnu-zero-variadic-macro-arguments
+LDFLAGS+=-L/opt/homebrew/lib
+LIBS+=-lcheck -lm -lpthread
+
+ifeq ($(shell uname -s),Linux)
+	LIBS+=-lrt -lsubunit
+endif
+
+
+# build targets
+
+$(TEST): $(TEST).o $(MODS) $(OBJS)
+	$(CC) $(LDFLAGS) -o $(TEST) $^ $(LIBS)
+
+%.o: %.c
+	$(CC) -c $(CFLAGS) $<
+
+clean:
+	rm -rf $(TEST) $(TEST).o $(MODS) $(UTESTOUT) $(ITESTOUT) outputs valgrind
+
+.PHONY: default clean test unittest inttest
+
diff --git a/p4-interp/tests/expected/A_bad_addr.txt b/p4-interp/tests/expected/A_bad_addr.txt
new file mode 100644
index 0000000..411787d
--- /dev/null
+++ b/p4-interp/tests/expected/A_bad_addr.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     ADR
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 000000000001e240
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
diff --git a/p4-interp/tests/expected/A_bad_addr_debug.txt b/p4-interp/tests/expected/A_bad_addr_debug.txt
new file mode 100644
index 0000000..b7fcdc2
--- /dev/null
+++ b/p4-interp/tests/expected/A_bad_addr_debug.txt
@@ -0,0 +1,294 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1e240, %rbx
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 000000000001e240
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x0(%rbx), %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     ADR
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 000000000001e240
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 40 e2 01 00 00 00  00 00 50 03 00 00 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/A_bad_insn.txt b/p4-interp/tests/expected/A_bad_insn.txt
new file mode 100644
index 0000000..079b685
--- /dev/null
+++ b/p4-interp/tests/expected/A_bad_insn.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     INS
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 134031200000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 1
diff --git a/p4-interp/tests/expected/A_bad_insn_debug.txt b/p4-interp/tests/expected/A_bad_insn_debug.txt
new file mode 100644
index 0000000..fec2c75
--- /dev/null
+++ b/p4-interp/tests/expected/A_bad_insn_debug.txt
@@ -0,0 +1,294 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x134031200000000f, %rbx
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 134031200000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Invalid instruction at 0x010a
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     INS
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 134031200000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 1
+
+Contents of memory from 0000 to 1000:
+  0000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  aa bb cc dd 00 00 00 dd  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/A_bad_nostack.txt b/p4-interp/tests/expected/A_bad_nostack.txt
new file mode 100644
index 0000000..4006202
--- /dev/null
+++ b/p4-interp/tests/expected/A_bad_nostack.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     ADR
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 1
diff --git a/p4-interp/tests/expected/A_both_flags.txt b/p4-interp/tests/expected/A_both_flags.txt
new file mode 100644
index 0000000..a976979
--- /dev/null
+++ b/p4-interp/tests/expected/A_both_flags.txt
@@ -0,0 +1,13 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+  -e      Execute program
+  -E      Execute program (trace mode)
diff --git a/p4-interp/tests/expected/A_cjmp_debug.txt b/p4-interp/tests/expected/A_cjmp_debug.txt
new file mode 100644
index 0000000..d5f23a8
--- /dev/null
+++ b/p4-interp/tests/expected/A_cjmp_debug.txt
@@ -0,0 +1,798 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 0000000000000116   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jmp 0x154
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jle 0x15e
+Y86 CPU state:
+    PC: 000000000000015d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jl 0x168
+Y86 CPU state:
+    PC: 0000000000000167   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000168   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: je 0x172
+Y86 CPU state:
+    PC: 0000000000000171   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000172   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jne 0x17c
+Y86 CPU state:
+    PC: 000000000000017c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jge 0x186
+Y86 CPU state:
+    PC: 0000000000000186   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jg 0x190
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 000000000000011f   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000129   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 000000000000012b   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jmp 0x154
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jle 0x15e
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jl 0x168
+Y86 CPU state:
+    PC: 0000000000000168   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: je 0x172
+Y86 CPU state:
+    PC: 0000000000000171   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000172   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jne 0x17c
+Y86 CPU state:
+    PC: 000000000000017c   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jge 0x186
+Y86 CPU state:
+    PC: 0000000000000185   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000186   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jg 0x190
+Y86 CPU state:
+    PC: 000000000000018f   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000134   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rax
+Y86 CPU state:
+    PC: 000000000000013e   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 0000000000000140   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jmp 0x154
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jle 0x15e
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jl 0x168
+Y86 CPU state:
+    PC: 0000000000000167   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000168   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: je 0x172
+Y86 CPU state:
+    PC: 0000000000000172   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jne 0x17c
+Y86 CPU state:
+    PC: 000000000000017b   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 000000000000017c   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jge 0x186
+Y86 CPU state:
+    PC: 0000000000000186   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jg 0x190
+Y86 CPU state:
+    PC: 000000000000018f   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000149   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z1 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 44
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f0 01 00 00 00
+  0110  00 00 00 00 62 00 80 4a  01 00 00 00 00 00 00 30
+  0120  f0 ff ff ff ff ff ff ff  ff 62 00 80 4a 01 00 00
+  0130  00 00 00 00 30 f0 00 00  00 00 00 00 00 00 62 00
+  0140  80 4a 01 00 00 00 00 00  00 00 70 54 01 00 00 00
+  0150  00 00 00 10 71 5e 01 00  00 00 00 00 00 10 72 68
+  0160  01 00 00 00 00 00 00 10  73 72 01 00 00 00 00 00
+  0170  00 10 74 7c 01 00 00 00  00 00 00 10 75 86 01 00
+  0180  00 00 00 00 00 10 76 90  01 00 00 00 00 00 00 10
+  0190  90 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  49 01 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/A_cmov_debug.txt b/p4-interp/tests/expected/A_cmov_debug.txt
new file mode 100644
index 0000000..b5fba8d
--- /dev/null
+++ b/p4-interp/tests/expected/A_cmov_debug.txt
@@ -0,0 +1,906 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 0000000000000116   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovle %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000160   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000016a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovl %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000016c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000176   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmove %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000178   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000182   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovne %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000184   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000018e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovge %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000019a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovg %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000019c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 000000000000011f   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000129   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 000000000000012b   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovle %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000160   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000016a   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovl %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000016c   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000176   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmove %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000178   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000182   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovne %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000184   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000018e   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovge %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000019a   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovg %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000019c   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000134   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rax
+Y86 CPU state:
+    PC: 000000000000013e   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 0000000000000140   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovle %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000160   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000016a   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovl %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000016c   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000176   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmove %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000178   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000182   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovne %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000184   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000018e   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovge %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000019a   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovg %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000019c   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000149   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z1 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 53
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f0 01 00 00 00
+  0110  00 00 00 00 62 00 80 4a  01 00 00 00 00 00 00 30
+  0120  f0 ff ff ff ff ff ff ff  ff 62 00 80 4a 01 00 00
+  0130  00 00 00 00 30 f0 00 00  00 00 00 00 00 00 62 00
+  0140  80 4a 01 00 00 00 00 00  00 00 30 f0 01 00 00 00
+  0150  00 00 00 00 30 f2 00 00  00 00 00 00 00 00 21 02
+  0160  30 f2 00 00 00 00 00 00  00 00 22 02 30 f2 00 00
+  0170  00 00 00 00 00 00 23 02  30 f2 00 00 00 00 00 00
+  0180  00 00 24 02 30 f2 00 00  00 00 00 00 00 00 25 02
+  0190  30 f2 00 00 00 00 00 00  00 00 26 02 90 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  49 01 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/A_extra_params.txt b/p4-interp/tests/expected/A_extra_params.txt
new file mode 100644
index 0000000..a976979
--- /dev/null
+++ b/p4-interp/tests/expected/A_extra_params.txt
@@ -0,0 +1,13 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+  -e      Execute program
+  -E      Execute program (trace mode)
diff --git a/p4-interp/tests/expected/A_iotrap_buf2_debug.txt b/p4-interp/tests/expected/A_iotrap_buf2_debug.txt
new file mode 100644
index 0000000..258a56d
--- /dev/null
+++ b/p4-interp/tests/expected/A_iotrap_buf2_debug.txt
@@ -0,0 +1,402 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x200, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000200    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000200    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000200    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 0000000000000116   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 0
+Y86 CPU state:
+    PC: 0000000000000117   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 0
+Y86 CPU state:
+    PC: 0000000000000118   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 0000000000000119   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+1234512345aaabcdefghY86 CPU state:
+    PC: 000000000000011a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000011b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000011c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000011d   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 11
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 02 00 00 00 00  00 00 c2 c2 30 f6 00 03
+  0110  00 00 00 00 00 00 c0 c0  c4 c5 c2 c4 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  39 30 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  61 62 63 64 65 66 67 68  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/A_iotrap_buf_debug.txt b/p4-interp/tests/expected/A_iotrap_buf_debug.txt
new file mode 100644
index 0000000..24aa32f
--- /dev/null
+++ b/p4-interp/tests/expected/A_iotrap_buf_debug.txt
@@ -0,0 +1,330 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+abcdefghY86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000010e   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 5
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 03 00 00 00 00  00 00 c4 c5 c4 00 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  61 62 63 64 65 66 67 68  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/A_iotrap_char_debug.txt b/p4-interp/tests/expected/A_iotrap_char_debug.txt
new file mode 100644
index 0000000..c780e01
--- /dev/null
+++ b/p4-interp/tests/expected/A_iotrap_char_debug.txt
@@ -0,0 +1,354 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 0
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 0
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+YYY86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x308, %rdi
+Y86 CPU state:
+    PC: 0000000000000117   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 1
+Y86 CPU state:
+    PC: 0000000000000118   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000119   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 7
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 03 00 00 00 00  00 00 c0 c0 c5 30 f7 08
+  0110  03 00 00 00 00 00 00 c1  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  59 00 00 00 00 00 00 00  79 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/A_iotrap_dec_bad.txt b/p4-interp/tests/expected/A_iotrap_dec_bad.txt
new file mode 100644
index 0000000..8369d5c
--- /dev/null
+++ b/p4-interp/tests/expected/A_iotrap_dec_bad.txt
@@ -0,0 +1,13 @@
+Beginning execution at 0x0100
+256256I/O Error
+Y86 CPU state:
+    PC: 0000000000000118   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 6
diff --git a/p4-interp/tests/expected/A_iotrap_dec_debug.txt b/p4-interp/tests/expected/A_iotrap_dec_debug.txt
new file mode 100644
index 0000000..395583e
--- /dev/null
+++ b/p4-interp/tests/expected/A_iotrap_dec_debug.txt
@@ -0,0 +1,354 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+256256Y86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x308, %rdi
+Y86 CPU state:
+    PC: 0000000000000117   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 3
+Y86 CPU state:
+    PC: 0000000000000118   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000119   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 7
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 03 00 00 00 00  00 00 c2 c2 c5 30 f7 08
+  0110  03 00 00 00 00 00 00 c3  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 01 00 00 00 00 00 00  2a 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/A_iotrap_escaped_string.txt b/p4-interp/tests/expected/A_iotrap_escaped_string.txt
new file mode 100644
index 0000000..855776a
--- /dev/null
+++ b/p4-interp/tests/expected/A_iotrap_escaped_string.txt
@@ -0,0 +1,15 @@
+Beginning execution at 0x0100
+hello!
+ab	c
+'str\ing'
+Y86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 4
diff --git a/p4-interp/tests/expected/A_iotrap_str_debug.txt b/p4-interp/tests/expected/A_iotrap_str_debug.txt
new file mode 100644
index 0000000..d8c6608
--- /dev/null
+++ b/p4-interp/tests/expected/A_iotrap_str_debug.txt
@@ -0,0 +1,330 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+abcdefghabcdefghY86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000010e   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 5
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 03 00 00 00 00  00 00 c4 c4 c5 00 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  61 62 63 64 65 66 67 68  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/A_missing_file.txt b/p4-interp/tests/expected/A_missing_file.txt
new file mode 100644
index 0000000..a976979
--- /dev/null
+++ b/p4-interp/tests/expected/A_missing_file.txt
@@ -0,0 +1,13 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+  -e      Execute program
+  -E      Execute program (trace mode)
diff --git a/p4-interp/tests/expected/A_movflags_debug.txt b/p4-interp/tests/expected/A_movflags_debug.txt
new file mode 100644
index 0000000..cb82d6d
--- /dev/null
+++ b/p4-interp/tests/expected/A_movflags_debug.txt
@@ -0,0 +1,438 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x200, %rbx
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: rmmovq %rax, 0x0(%rbx)
+Y86 CPU state:
+    PC: 0000000000000128   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x0(%rbx), %rcx
+Y86 CPU state:
+    PC: 0000000000000132   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rax
+Y86 CPU state:
+    PC: 0000000000000134   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rdx
+Y86 CPU state:
+    PC: 0000000000000136   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000140   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x200, %rbx
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: rmmovq %rax, 0x0(%rbx)
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x0(%rbx), %rcx
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: ffffffffffffffff
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rax
+Y86 CPU state:
+    PC: 0000000000000160   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: ffffffffffffffff
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rdx
+Y86 CPU state:
+    PC: 0000000000000162   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: ffffffffffffffff
+  %rdx: ffffffffffffffff    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000163   flags: Z0 S0 O0     HLT
+  %rax: ffffffffffffffff    %rcx: ffffffffffffffff
+  %rdx: ffffffffffffffff    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 14
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f0 00 00 00 00
+  0110  00 00 00 00 30 f3 00 02  00 00 00 00 00 00 40 03
+  0120  00 00 00 00 00 00 00 00  50 13 00 00 00 00 00 00
+  0130  00 00 a0 0f b0 2f 30 f0  ff ff ff ff ff ff ff ff
+  0140  30 f3 00 02 00 00 00 00  00 00 40 03 00 00 00 00
+  0150  00 00 00 00 50 13 00 00  00 00 00 00 00 00 a0 0f
+  0160  b0 2f 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  ff ff ff ff ff ff ff ff  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  ff ff ff ff ff ff ff ff
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/A_opq_of_debug.txt b/p4-interp/tests/expected/A_opq_of_debug.txt
new file mode 100644
index 0000000..a61a9dc
--- /dev/null
+++ b/p4-interp/tests/expected/A_opq_of_debug.txt
@@ -0,0 +1,402 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rbx
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x7fffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: addq %rbx, %rax
+Y86 CPU state:
+    PC: 0000000000000116   flags: Z0 S1 O1     AOK
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x8000000000000000, %rax
+Y86 CPU state:
+    PC: 0000000000000120   flags: Z0 S1 O1     AOK
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: subq %rbx, %rax
+Y86 CPU state:
+    PC: 0000000000000122   flags: Z0 S0 O1     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rbx
+Y86 CPU state:
+    PC: 000000000000012c   flags: Z0 S0 O1     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x8000000000000000, %rax
+Y86 CPU state:
+    PC: 0000000000000136   flags: Z0 S0 O1     AOK
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: addq %rbx, %rax
+Y86 CPU state:
+    PC: 0000000000000138   flags: Z0 S0 O1     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x7fffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000142   flags: Z0 S0 O1     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: subq %rbx, %rax
+Y86 CPU state:
+    PC: 0000000000000144   flags: Z0 S1 O1     AOK
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000145   flags: Z0 S1 O1     HLT
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 11
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 01 00 00 00 00 00  00 00 30 f0 ff ff ff ff
+  0110  ff ff ff 7f 60 30 30 f0  00 00 00 00 00 00 00 80
+  0120  61 30 30 f3 ff ff ff ff  ff ff ff ff 30 f0 00 00
+  0130  00 00 00 00 00 80 60 30  30 f0 ff ff ff ff ff ff
+  0140  ff 7f 61 30 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/A_pushpop_rsp_debug.txt b/p4-interp/tests/expected/A_pushpop_rsp_debug.txt
new file mode 100644
index 0000000..09827c1
--- /dev/null
+++ b/p4-interp/tests/expected/A_pushpop_rsp_debug.txt
@@ -0,0 +1,318 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rsp
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rax
+Y86 CPU state:
+    PC: 000000000000010e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000f00    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000010f   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000f00    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 4
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 a0 4f b0 0f 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 0f 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/A_unaligned1.txt b/p4-interp/tests/expected/A_unaligned1.txt
new file mode 100644
index 0000000..9cb3e52
--- /dev/null
+++ b/p4-interp/tests/expected/A_unaligned1.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0118
+Y86 CPU state:
+    PC: 000000000000011a   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
diff --git a/p4-interp/tests/expected/A_unaligned2.txt b/p4-interp/tests/expected/A_unaligned2.txt
new file mode 100644
index 0000000..776899c
--- /dev/null
+++ b/p4-interp/tests/expected/A_unaligned2.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0555
+Y86 CPU state:
+    PC: 0000000000000574   flags: Z0 S0 O0     HLT
+  %rax: 000000000000014d    %rcx: 000000000000006f
+  %rdx: 0000000000000000    %rbx: 00000000000000de
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 4
diff --git a/p4-interp/tests/expected/B_func_debug.txt b/p4-interp/tests/expected/B_func_debug.txt
new file mode 100644
index 0000000..e190928
--- /dev/null
+++ b/p4-interp/tests/expected/B_func_debug.txt
@@ -0,0 +1,342 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x114
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x11e
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef0    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 000000000000011d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000113   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 6
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 80 14 01 00 00 00
+  0110  00 00 00 00 80 1e 01 00  00 00 00 00 00 90 90 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  1d 01 00 00 00 00 00 00  13 01 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/B_memreg.txt b/p4-interp/tests/expected/B_memreg.txt
new file mode 100644
index 0000000..d3ed785
--- /dev/null
+++ b/p4-interp/tests/expected/B_memreg.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000147   flags: Z0 S0 O0     HLT
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0123456789abcdef
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 8
diff --git a/p4-interp/tests/expected/B_memreg_debug.txt b/p4-interp/tests/expected/B_memreg_debug.txt
new file mode 100644
index 0000000..366e104
--- /dev/null
+++ b/p4-interp/tests/expected/B_memreg_debug.txt
@@ -0,0 +1,366 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xfedcba9876543210, %rax
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x200, %rbx
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: rmmovq %rax, 0x0(%rbx)
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x0(%rbx), %rcx
+Y86 CPU state:
+    PC: 0000000000000128   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x8(%rbx), %rdx
+Y86 CPU state:
+    PC: 0000000000000132   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: rmmovq %rdx, 0x210
+Y86 CPU state:
+    PC: 000000000000013c   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x210, %rdi
+Y86 CPU state:
+    PC: 0000000000000146   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0123456789abcdef
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000147   flags: Z0 S0 O0     HLT
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0123456789abcdef
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 8
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f0 10 32 54 76 98 ba  dc fe 30 f3 00 02 00 00
+  0110  00 00 00 00 40 03 00 00  00 00 00 00 00 00 50 13
+  0120  00 00 00 00 00 00 00 00  50 23 08 00 00 00 00 00
+  0130  00 00 40 2f 10 02 00 00  00 00 00 00 50 7f 10 02
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  10 32 54 76 98 ba dc fe  ef cd ab 89 67 45 23 01
+  0210  ef cd ab 89 67 45 23 01  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/B_pushpop.txt b/p4-interp/tests/expected/B_pushpop.txt
new file mode 100644
index 0000000..d6724c3
--- /dev/null
+++ b/p4-interp/tests/expected/B_pushpop.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000127   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0123456789abcdef
+  %rdx: 0000000000000001    %rbx: 0123456789abcdef
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 8
diff --git a/p4-interp/tests/expected/B_pushpop_debug.txt b/p4-interp/tests/expected/B_pushpop_debug.txt
new file mode 100644
index 0000000..9e8fcfd
--- /dev/null
+++ b/p4-interp/tests/expected/B_pushpop_debug.txt
@@ -0,0 +1,366 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x123456789abcdef, %rbx
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0123456789abcdef
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rax
+Y86 CPU state:
+    PC: 0000000000000120   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0123456789abcdef
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rbx
+Y86 CPU state:
+    PC: 0000000000000122   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0123456789abcdef
+  %rsp: 0000000000000ef0    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rcx
+Y86 CPU state:
+    PC: 0000000000000124   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0123456789abcdef
+  %rdx: 0000000000000000    %rbx: 0123456789abcdef
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rdx
+Y86 CPU state:
+    PC: 0000000000000126   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0123456789abcdef
+  %rdx: 0000000000000001    %rbx: 0123456789abcdef
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000127   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0123456789abcdef
+  %rdx: 0000000000000001    %rbx: 0123456789abcdef
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 8
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f0 01 00 00 00
+  0110  00 00 00 00 30 f3 ef cd  ab 89 67 45 23 01 a0 0f
+  0120  a0 3f b0 1f b0 2f 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  ef cd ab 89 67 45 23 01  01 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/B_simple.txt b/p4-interp/tests/expected/B_simple.txt
new file mode 100644
index 0000000..db77842
--- /dev/null
+++ b/p4-interp/tests/expected/B_simple.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000005    %rcx: 0000000000000003
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 7
diff --git a/p4-interp/tests/expected/B_simple_entry.txt b/p4-interp/tests/expected/B_simple_entry.txt
new file mode 100644
index 0000000..46910e2
--- /dev/null
+++ b/p4-interp/tests/expected/B_simple_entry.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0250
+Y86 CPU state:
+    PC: 0000000000000264   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000005    %rcx: 0000000000000003
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 7
diff --git a/p4-interp/tests/expected/C_irmovq.txt b/p4-interp/tests/expected/C_irmovq.txt
new file mode 100644
index 0000000..7681b9f
--- /dev/null
+++ b/p4-interp/tests/expected/C_irmovq.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000151   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 00000000deadbeef    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 9
diff --git a/p4-interp/tests/expected/C_irmovq_debug.txt b/p4-interp/tests/expected/C_irmovq_debug.txt
new file mode 100644
index 0000000..49e4d1d
--- /dev/null
+++ b/p4-interp/tests/expected/C_irmovq_debug.txt
@@ -0,0 +1,378 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf, %rbx
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1234, %rcx
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 0000000000000000    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1122334455667788, %rdx
+Y86 CPU state:
+    PC: 0000000000000128   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x8877665544332211, %rsi
+Y86 CPU state:
+    PC: 0000000000000132   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rdi
+Y86 CPU state:
+    PC: 000000000000013c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rbp
+Y86 CPU state:
+    PC: 0000000000000146   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xdeadbeef, %rsp
+Y86 CPU state:
+    PC: 0000000000000150   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 00000000deadbeef    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000151   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 00000000deadbeef    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 9
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f0 01 00 00 00 00 00  00 00 30 f3 0f 00 00 00
+  0110  00 00 00 00 30 f1 34 12  00 00 00 00 00 00 30 f2
+  0120  88 77 66 55 44 33 22 11  30 f6 11 22 33 44 55 66
+  0130  77 88 30 f7 ff ff ff ff  ff ff ff ff 30 f5 00 00
+  0140  00 00 00 00 00 00 30 f4  ef be ad de 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/C_opq.txt b/p4-interp/tests/expected/C_opq.txt
new file mode 100644
index 0000000..8d2da4f
--- /dev/null
+++ b/p4-interp/tests/expected/C_opq.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 000000000000013b   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000008    %rcx: 0000000000000001
+  %rdx: 0000000000000006    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 10
diff --git a/p4-interp/tests/expected/C_opq_debug.txt b/p4-interp/tests/expected/C_opq_debug.txt
new file mode 100644
index 0000000..e5a122f
--- /dev/null
+++ b/p4-interp/tests/expected/C_opq_debug.txt
@@ -0,0 +1,390 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x5, %rax
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x5, %rbx
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x5, %rcx
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000005
+  %rdx: 0000000000000000    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x5, %rdx
+Y86 CPU state:
+    PC: 0000000000000128   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000005
+  %rdx: 0000000000000005    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x3, %rdi
+Y86 CPU state:
+    PC: 0000000000000132   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000005
+  %rdx: 0000000000000005    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: addq %rdi, %rax
+Y86 CPU state:
+    PC: 0000000000000134   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000008    %rcx: 0000000000000005
+  %rdx: 0000000000000005    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: subq %rdi, %rbx
+Y86 CPU state:
+    PC: 0000000000000136   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000008    %rcx: 0000000000000005
+  %rdx: 0000000000000005    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rdi, %rcx
+Y86 CPU state:
+    PC: 0000000000000138   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000008    %rcx: 0000000000000001
+  %rdx: 0000000000000005    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: xorq %rdi, %rdx
+Y86 CPU state:
+    PC: 000000000000013a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000008    %rcx: 0000000000000001
+  %rdx: 0000000000000006    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000013b   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000008    %rcx: 0000000000000001
+  %rdx: 0000000000000006    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 10
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f0 05 00 00 00 00 00  00 00 30 f3 05 00 00 00
+  0110  00 00 00 00 30 f1 05 00  00 00 00 00 00 00 30 f2
+  0120  05 00 00 00 00 00 00 00  30 f7 03 00 00 00 00 00
+  0130  00 00 60 70 61 73 62 71  63 72 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/expected/D_help.txt b/p4-interp/tests/expected/D_help.txt
new file mode 100644
index 0000000..a976979
--- /dev/null
+++ b/p4-interp/tests/expected/D_help.txt
@@ -0,0 +1,13 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+  -e      Execute program
+  -E      Execute program (trace mode)
diff --git a/p4-interp/tests/expected/D_nop_hlt.txt b/p4-interp/tests/expected/D_nop_hlt.txt
new file mode 100644
index 0000000..16f14a7
--- /dev/null
+++ b/p4-interp/tests/expected/D_nop_hlt.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000102   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
diff --git a/p4-interp/tests/expected/D_nop_hlt_debug.txt b/p4-interp/tests/expected/D_nop_hlt_debug.txt
new file mode 100644
index 0000000..3012b2f
--- /dev/null
+++ b/p4-interp/tests/expected/D_nop_hlt_debug.txt
@@ -0,0 +1,294 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000101   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000102   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  10 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/inputs/bad_addr.o b/p4-interp/tests/inputs/bad_addr.o
new file mode 100644
index 0000000..c3b59e6
Binary files /dev/null and b/p4-interp/tests/inputs/bad_addr.o differ
diff --git a/p4-interp/tests/inputs/bad_insn.o b/p4-interp/tests/inputs/bad_insn.o
new file mode 100644
index 0000000..6f00342
Binary files /dev/null and b/p4-interp/tests/inputs/bad_insn.o differ
diff --git a/p4-interp/tests/inputs/bad_nostack.o b/p4-interp/tests/inputs/bad_nostack.o
new file mode 100644
index 0000000..26e441a
Binary files /dev/null and b/p4-interp/tests/inputs/bad_nostack.o differ
diff --git a/p4-interp/tests/inputs/cjmp.o b/p4-interp/tests/inputs/cjmp.o
new file mode 100644
index 0000000..f89a59a
Binary files /dev/null and b/p4-interp/tests/inputs/cjmp.o differ
diff --git a/p4-interp/tests/inputs/cmov.o b/p4-interp/tests/inputs/cmov.o
new file mode 100644
index 0000000..7c6fba2
Binary files /dev/null and b/p4-interp/tests/inputs/cmov.o differ
diff --git a/p4-interp/tests/inputs/func.o b/p4-interp/tests/inputs/func.o
new file mode 100644
index 0000000..3974530
Binary files /dev/null and b/p4-interp/tests/inputs/func.o differ
diff --git a/p4-interp/tests/inputs/iotrap_buf.o b/p4-interp/tests/inputs/iotrap_buf.o
new file mode 100644
index 0000000..5de659a
Binary files /dev/null and b/p4-interp/tests/inputs/iotrap_buf.o differ
diff --git a/p4-interp/tests/inputs/iotrap_buf2.o b/p4-interp/tests/inputs/iotrap_buf2.o
new file mode 100644
index 0000000..f9904e9
Binary files /dev/null and b/p4-interp/tests/inputs/iotrap_buf2.o differ
diff --git a/p4-interp/tests/inputs/iotrap_char.o b/p4-interp/tests/inputs/iotrap_char.o
new file mode 100644
index 0000000..161b36b
Binary files /dev/null and b/p4-interp/tests/inputs/iotrap_char.o differ
diff --git a/p4-interp/tests/inputs/iotrap_char.txt b/p4-interp/tests/inputs/iotrap_char.txt
new file mode 100644
index 0000000..975fbec
--- /dev/null
+++ b/p4-interp/tests/inputs/iotrap_char.txt
@@ -0,0 +1 @@
+y
diff --git a/p4-interp/tests/inputs/iotrap_dec.o b/p4-interp/tests/inputs/iotrap_dec.o
new file mode 100644
index 0000000..8c81a80
Binary files /dev/null and b/p4-interp/tests/inputs/iotrap_dec.o differ
diff --git a/p4-interp/tests/inputs/iotrap_dec.txt b/p4-interp/tests/inputs/iotrap_dec.txt
new file mode 100644
index 0000000..d81cc07
--- /dev/null
+++ b/p4-interp/tests/inputs/iotrap_dec.txt
@@ -0,0 +1 @@
+42
diff --git a/p4-interp/tests/inputs/iotrap_str.o b/p4-interp/tests/inputs/iotrap_str.o
new file mode 100644
index 0000000..7cdc6fa
Binary files /dev/null and b/p4-interp/tests/inputs/iotrap_str.o differ
diff --git a/p4-interp/tests/inputs/iotrap_str_esc.o b/p4-interp/tests/inputs/iotrap_str_esc.o
new file mode 100644
index 0000000..d94c49b
Binary files /dev/null and b/p4-interp/tests/inputs/iotrap_str_esc.o differ
diff --git a/p4-interp/tests/inputs/irmovq.o b/p4-interp/tests/inputs/irmovq.o
new file mode 100644
index 0000000..2b1592a
Binary files /dev/null and b/p4-interp/tests/inputs/irmovq.o differ
diff --git a/p4-interp/tests/inputs/memreg.o b/p4-interp/tests/inputs/memreg.o
new file mode 100644
index 0000000..a1dd30c
Binary files /dev/null and b/p4-interp/tests/inputs/memreg.o differ
diff --git a/p4-interp/tests/inputs/movflags.o b/p4-interp/tests/inputs/movflags.o
new file mode 100644
index 0000000..280ef52
Binary files /dev/null and b/p4-interp/tests/inputs/movflags.o differ
diff --git a/p4-interp/tests/inputs/nop_hlt.o b/p4-interp/tests/inputs/nop_hlt.o
new file mode 100644
index 0000000..c67fdad
Binary files /dev/null and b/p4-interp/tests/inputs/nop_hlt.o differ
diff --git a/p4-interp/tests/inputs/opq.o b/p4-interp/tests/inputs/opq.o
new file mode 100644
index 0000000..7a35e23
Binary files /dev/null and b/p4-interp/tests/inputs/opq.o differ
diff --git a/p4-interp/tests/inputs/opq_of.o b/p4-interp/tests/inputs/opq_of.o
new file mode 100644
index 0000000..377059e
Binary files /dev/null and b/p4-interp/tests/inputs/opq_of.o differ
diff --git a/p4-interp/tests/inputs/pushpop.o b/p4-interp/tests/inputs/pushpop.o
new file mode 100644
index 0000000..74854a1
Binary files /dev/null and b/p4-interp/tests/inputs/pushpop.o differ
diff --git a/p4-interp/tests/inputs/pushpop_rsp.o b/p4-interp/tests/inputs/pushpop_rsp.o
new file mode 100644
index 0000000..ed3555e
Binary files /dev/null and b/p4-interp/tests/inputs/pushpop_rsp.o differ
diff --git a/p4-interp/tests/inputs/simple.o b/p4-interp/tests/inputs/simple.o
new file mode 100644
index 0000000..ada13d5
Binary files /dev/null and b/p4-interp/tests/inputs/simple.o differ
diff --git a/p4-interp/tests/inputs/simple_entry.o b/p4-interp/tests/inputs/simple_entry.o
new file mode 100644
index 0000000..615c43e
Binary files /dev/null and b/p4-interp/tests/inputs/simple_entry.o differ
diff --git a/p4-interp/tests/inputs/unaligned.o b/p4-interp/tests/inputs/unaligned.o
new file mode 100644
index 0000000..079af97
Binary files /dev/null and b/p4-interp/tests/inputs/unaligned.o differ
diff --git a/p4-interp/tests/inputs/unaligned2.o b/p4-interp/tests/inputs/unaligned2.o
new file mode 100644
index 0000000..2d03189
Binary files /dev/null and b/p4-interp/tests/inputs/unaligned2.o differ
diff --git a/p4-interp/tests/integration.sh b/p4-interp/tests/integration.sh
new file mode 100644
index 0000000..ed5a430
--- /dev/null
+++ b/p4-interp/tests/integration.sh
@@ -0,0 +1,87 @@
+#!/bin/bash
+
+# extract executable name from Makefile
+EXE=$(grep "EXE=" Makefile | sed -e "s/EXE=//")
+
+# detect timeout utility (i.e., "timeout" on Linux and "gtimeout" on MacOS)
+# and set timeout interval
+TIMEOUT="timeout"
+TIMEOUT_INTERVAL="3s"
+$TIMEOUT --help &>/dev/null
+if [[ $? -ne 0 ]]; then
+    TIMEOUT="gtimeout"
+fi
+
+# Valgrind additional output flags
+VG_FLAGS="--leak-check=full --track-origins=yes"
+
+function run_test {
+
+    # parameters
+    TAG=$1
+    ARGS=$2
+    PTAG=$(printf '%-30s' "$TAG")
+
+    # file paths
+    OUTPUT=outputs/$TAG.txt
+    DIFF=outputs/$TAG.diff
+    EXPECT=expected/$TAG.txt
+    VALGRND=valgrind/$TAG.txt
+
+    # run test with timeout
+    $TIMEOUT $TIMEOUT_INTERVAL $EXE $ARGS 2>/dev/null >"$OUTPUT"
+    if [ "$?" -lt 124 ]; then
+
+        # no timeout; compare output to the expected version
+        diff -u "$OUTPUT" "$EXPECT" >"$DIFF"
+        if [ -s "$DIFF" ]; then
+
+            # try alternative solution (if it exists)
+            EXPECT=expected/$TAG-2.txt
+            if [ -e "$EXPECT" ]; then
+                diff -u "$OUTPUT" "$EXPECT" >"$DIFF"
+                if [ -s "$DIFF" ]; then
+                    echo "$PTAG FAIL (see ${TPREFIX}$DIFF for details)"
+                else
+                    echo "$PTAG pass"
+                fi
+            else
+                echo "$PTAG FAIL (see ${TPREFIX}$DIFF for details)"
+            fi
+        else
+            echo "$PTAG pass"
+        fi
+
+        # run valgrind
+        $TIMEOUT $TIMEOUT_INTERVAL valgrind $VG_FLAGS $EXE $ARGS &>$VALGRND
+    else
+        echo "$PTAG FAIL (crash or timeout)"
+    fi
+}
+
+# initialize output folders
+mkdir -p outputs
+mkdir -p valgrind
+rm -f outputs/* valgrind/*
+
+# run individual tests
+source itests.include
+
+# check for memory leaks
+LEAK=`cat valgrind/*.txt | grep 'definitely lost' | grep -v ' 0 bytes in 0 blocks'`
+if [ -z "$LEAK" ]; then
+    echo "No memory leak found."
+else
+    echo "Memory leak(s) found. See files listed below for details."
+    grep 'definitely lost' valgrind/*.txt | sed -e 's/:.*$//g' | awk "{print \"  - ${TPREFIX}\" \$0}"
+fi
+
+# check for uninitialized values
+LEAK=`cat valgrind/*.txt | grep 'uninitialised value'`
+if [ -z "$LEAK" ]; then
+    echo "No uninitialized value found."
+else
+    echo "Uninitialized value(s) found. See files listed below for details."
+    grep 'uninitialised value' valgrind/*.txt | sed -e 's/:.*$//g' | awk "{print \"  - ${TPREFIX}\" \$0}"
+fi
+
diff --git a/p4-interp/tests/itests.include b/p4-interp/tests/itests.include
new file mode 100644
index 0000000..67ce48b
--- /dev/null
+++ b/p4-interp/tests/itests.include
@@ -0,0 +1,41 @@
+# list of integration tests
+#  format: run_test <TAG> <ARGS>
+#    <TAG>      used as the root for all filenames (i.e., "expected/$TAG.txt")
+#    <ARGS>     command-line arguments to test
+
+run_test    D_help                  "-h"
+run_test    D_nop_hlt               "-e inputs/nop_hlt.o"
+run_test    D_nop_hlt_debug         "-E inputs/nop_hlt.o"
+run_test    C_irmovq                "-e inputs/irmovq.o"
+run_test    C_irmovq_debug          "-E inputs/irmovq.o"
+run_test    C_opq                   "-e inputs/opq.o"
+run_test    C_opq_debug             "-E inputs/opq.o"
+run_test    B_pushpop               "-e inputs/pushpop.o"
+run_test    B_pushpop_debug         "-E inputs/pushpop.o"
+run_test    B_memreg                "-e inputs/memreg.o"
+run_test    B_memreg_debug          "-E inputs/memreg.o"
+run_test    B_simple                "-e inputs/simple.o"
+run_test    B_simple_entry          "-e inputs/simple_entry.o"
+run_test    B_func_debug            "-E inputs/func.o"
+run_test    A_cmov_debug            "-E inputs/cmov.o"
+run_test    A_cjmp_debug            "-E inputs/cjmp.o"
+run_test    A_opq_of_debug          "-E inputs/opq_of.o"
+run_test    A_movflags_debug        "-E inputs/movflags.o"
+run_test    A_pushpop_rsp_debug     "-E inputs/pushpop_rsp.o"
+run_test    A_bad_addr              "-e inputs/bad_addr.o"
+run_test    A_bad_addr_debug        "-E inputs/bad_addr.o"
+run_test    A_bad_insn              "-e inputs/bad_insn.o"
+run_test    A_bad_insn_debug        "-E inputs/bad_insn.o"
+run_test    A_bad_nostack           "-e inputs/bad_nostack.o"
+run_test    A_missing_file          "-e"
+run_test    A_both_flags            "-e -E inputs/simple.o"
+run_test    A_extra_params          "-e inputs/nop_hlt.o extra params"
+run_test    A_unaligned1            "-e inputs/unaligned.o"
+run_test    A_unaligned2            "-e inputs/unaligned2.o"
+run_test    A_iotrap_char_debug     "-E inputs/iotrap_char.o" <inputs/iotrap_char.txt
+run_test    A_iotrap_dec_debug      "-E inputs/iotrap_dec.o"  <inputs/iotrap_dec.txt
+run_test    A_iotrap_dec_bad        "-e inputs/iotrap_dec.o"  <inputs/iotrap_char.txt
+run_test    A_iotrap_str_debug      "-E inputs/iotrap_str.o"
+run_test    A_iotrap_escaped_string "-e inputs/iotrap_str_esc.o"
+run_test    A_iotrap_buf_debug      "-E inputs/iotrap_buf.o"
+run_test    A_iotrap_buf2_debug     "-E inputs/iotrap_buf2.o"
diff --git a/p4-interp/tests/itests.txt b/p4-interp/tests/itests.txt
new file mode 100644
index 0000000..656f19e
--- /dev/null
+++ b/p4-interp/tests/itests.txt
@@ -0,0 +1,38 @@
+D_help                         pass
+D_nop_hlt                      pass
+D_nop_hlt_debug                pass
+C_irmovq                       pass
+C_irmovq_debug                 pass
+C_opq                          pass
+C_opq_debug                    pass
+B_pushpop                      pass
+B_pushpop_debug                pass
+B_memreg                       pass
+B_memreg_debug                 pass
+B_simple                       pass
+B_simple_entry                 pass
+B_func_debug                   pass
+A_cmov_debug                   pass
+A_cjmp_debug                   pass
+A_opq_of_debug                 pass
+A_movflags_debug               pass
+A_pushpop_rsp_debug            pass
+A_bad_addr                     pass
+A_bad_addr_debug               pass
+A_bad_insn                     pass
+A_bad_insn_debug               pass
+A_bad_nostack                  pass
+A_missing_file                 pass
+A_both_flags                   pass
+A_extra_params                 pass
+A_unaligned1                   pass
+A_unaligned2                   pass
+A_iotrap_char_debug            pass
+A_iotrap_dec_debug             pass
+A_iotrap_dec_bad               pass
+A_iotrap_str_debug             pass
+A_iotrap_escaped_string        pass
+A_iotrap_buf_debug             pass
+A_iotrap_buf2_debug            pass
+No memory leak found.
+No uninitialized value found.
diff --git a/p4-interp/tests/outputs/A_bad_addr.diff b/p4-interp/tests/outputs/A_bad_addr.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_bad_addr.txt b/p4-interp/tests/outputs/A_bad_addr.txt
new file mode 100644
index 0000000..411787d
--- /dev/null
+++ b/p4-interp/tests/outputs/A_bad_addr.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     ADR
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 000000000001e240
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
diff --git a/p4-interp/tests/outputs/A_bad_addr_debug.diff b/p4-interp/tests/outputs/A_bad_addr_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_bad_addr_debug.txt b/p4-interp/tests/outputs/A_bad_addr_debug.txt
new file mode 100644
index 0000000..b7fcdc2
--- /dev/null
+++ b/p4-interp/tests/outputs/A_bad_addr_debug.txt
@@ -0,0 +1,294 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1e240, %rbx
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 000000000001e240
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x0(%rbx), %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     ADR
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 000000000001e240
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 40 e2 01 00 00 00  00 00 50 03 00 00 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/A_bad_insn.diff b/p4-interp/tests/outputs/A_bad_insn.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_bad_insn.txt b/p4-interp/tests/outputs/A_bad_insn.txt
new file mode 100644
index 0000000..079b685
--- /dev/null
+++ b/p4-interp/tests/outputs/A_bad_insn.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     INS
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 134031200000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 1
diff --git a/p4-interp/tests/outputs/A_bad_insn_debug.diff b/p4-interp/tests/outputs/A_bad_insn_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_bad_insn_debug.txt b/p4-interp/tests/outputs/A_bad_insn_debug.txt
new file mode 100644
index 0000000..fec2c75
--- /dev/null
+++ b/p4-interp/tests/outputs/A_bad_insn_debug.txt
@@ -0,0 +1,294 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x134031200000000f, %rbx
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 134031200000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Invalid instruction at 0x010a
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     INS
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 134031200000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 1
+
+Contents of memory from 0000 to 1000:
+  0000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  aa bb cc dd 00 00 00 dd  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/A_bad_nostack.diff b/p4-interp/tests/outputs/A_bad_nostack.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_bad_nostack.txt b/p4-interp/tests/outputs/A_bad_nostack.txt
new file mode 100644
index 0000000..4006202
--- /dev/null
+++ b/p4-interp/tests/outputs/A_bad_nostack.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     ADR
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 1
diff --git a/p4-interp/tests/outputs/A_both_flags.diff b/p4-interp/tests/outputs/A_both_flags.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_both_flags.txt b/p4-interp/tests/outputs/A_both_flags.txt
new file mode 100644
index 0000000..a976979
--- /dev/null
+++ b/p4-interp/tests/outputs/A_both_flags.txt
@@ -0,0 +1,13 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+  -e      Execute program
+  -E      Execute program (trace mode)
diff --git a/p4-interp/tests/outputs/A_cjmp_debug.diff b/p4-interp/tests/outputs/A_cjmp_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_cjmp_debug.txt b/p4-interp/tests/outputs/A_cjmp_debug.txt
new file mode 100644
index 0000000..d5f23a8
--- /dev/null
+++ b/p4-interp/tests/outputs/A_cjmp_debug.txt
@@ -0,0 +1,798 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 0000000000000116   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jmp 0x154
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jle 0x15e
+Y86 CPU state:
+    PC: 000000000000015d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jl 0x168
+Y86 CPU state:
+    PC: 0000000000000167   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000168   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: je 0x172
+Y86 CPU state:
+    PC: 0000000000000171   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000172   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jne 0x17c
+Y86 CPU state:
+    PC: 000000000000017c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jge 0x186
+Y86 CPU state:
+    PC: 0000000000000186   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jg 0x190
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 000000000000011f   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000129   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 000000000000012b   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jmp 0x154
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jle 0x15e
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jl 0x168
+Y86 CPU state:
+    PC: 0000000000000168   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: je 0x172
+Y86 CPU state:
+    PC: 0000000000000171   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000172   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jne 0x17c
+Y86 CPU state:
+    PC: 000000000000017c   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jge 0x186
+Y86 CPU state:
+    PC: 0000000000000185   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000186   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jg 0x190
+Y86 CPU state:
+    PC: 000000000000018f   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000134   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rax
+Y86 CPU state:
+    PC: 000000000000013e   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 0000000000000140   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jmp 0x154
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jle 0x15e
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jl 0x168
+Y86 CPU state:
+    PC: 0000000000000167   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000168   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: je 0x172
+Y86 CPU state:
+    PC: 0000000000000172   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jne 0x17c
+Y86 CPU state:
+    PC: 000000000000017b   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 000000000000017c   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jge 0x186
+Y86 CPU state:
+    PC: 0000000000000186   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jg 0x190
+Y86 CPU state:
+    PC: 000000000000018f   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000149   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z1 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 44
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f0 01 00 00 00
+  0110  00 00 00 00 62 00 80 4a  01 00 00 00 00 00 00 30
+  0120  f0 ff ff ff ff ff ff ff  ff 62 00 80 4a 01 00 00
+  0130  00 00 00 00 30 f0 00 00  00 00 00 00 00 00 62 00
+  0140  80 4a 01 00 00 00 00 00  00 00 70 54 01 00 00 00
+  0150  00 00 00 10 71 5e 01 00  00 00 00 00 00 10 72 68
+  0160  01 00 00 00 00 00 00 10  73 72 01 00 00 00 00 00
+  0170  00 10 74 7c 01 00 00 00  00 00 00 10 75 86 01 00
+  0180  00 00 00 00 00 10 76 90  01 00 00 00 00 00 00 10
+  0190  90 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  49 01 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/A_cmov_debug.diff b/p4-interp/tests/outputs/A_cmov_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_cmov_debug.txt b/p4-interp/tests/outputs/A_cmov_debug.txt
new file mode 100644
index 0000000..b5fba8d
--- /dev/null
+++ b/p4-interp/tests/outputs/A_cmov_debug.txt
@@ -0,0 +1,906 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 0000000000000116   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovle %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000160   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000016a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovl %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000016c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000176   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmove %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000178   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000182   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovne %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000184   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000018e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovge %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000019a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovg %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000019c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 000000000000011f   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000129   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 000000000000012b   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovle %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000160   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000016a   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovl %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000016c   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000176   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmove %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000178   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000182   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovne %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000184   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000018e   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovge %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000019a   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovg %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000019c   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000134   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rax
+Y86 CPU state:
+    PC: 000000000000013e   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 0000000000000140   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovle %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000160   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000016a   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovl %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000016c   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000176   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmove %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000178   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000182   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovne %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000184   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000018e   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovge %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000019a   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovg %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000019c   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000149   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z1 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 53
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f0 01 00 00 00
+  0110  00 00 00 00 62 00 80 4a  01 00 00 00 00 00 00 30
+  0120  f0 ff ff ff ff ff ff ff  ff 62 00 80 4a 01 00 00
+  0130  00 00 00 00 30 f0 00 00  00 00 00 00 00 00 62 00
+  0140  80 4a 01 00 00 00 00 00  00 00 30 f0 01 00 00 00
+  0150  00 00 00 00 30 f2 00 00  00 00 00 00 00 00 21 02
+  0160  30 f2 00 00 00 00 00 00  00 00 22 02 30 f2 00 00
+  0170  00 00 00 00 00 00 23 02  30 f2 00 00 00 00 00 00
+  0180  00 00 24 02 30 f2 00 00  00 00 00 00 00 00 25 02
+  0190  30 f2 00 00 00 00 00 00  00 00 26 02 90 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  49 01 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/A_extra_params.diff b/p4-interp/tests/outputs/A_extra_params.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_extra_params.txt b/p4-interp/tests/outputs/A_extra_params.txt
new file mode 100644
index 0000000..a976979
--- /dev/null
+++ b/p4-interp/tests/outputs/A_extra_params.txt
@@ -0,0 +1,13 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+  -e      Execute program
+  -E      Execute program (trace mode)
diff --git a/p4-interp/tests/outputs/A_iotrap_buf2_debug.diff b/p4-interp/tests/outputs/A_iotrap_buf2_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_iotrap_buf2_debug.txt b/p4-interp/tests/outputs/A_iotrap_buf2_debug.txt
new file mode 100644
index 0000000..258a56d
--- /dev/null
+++ b/p4-interp/tests/outputs/A_iotrap_buf2_debug.txt
@@ -0,0 +1,402 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x200, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000200    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000200    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000200    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 0000000000000116   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 0
+Y86 CPU state:
+    PC: 0000000000000117   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 0
+Y86 CPU state:
+    PC: 0000000000000118   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 0000000000000119   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+1234512345aaabcdefghY86 CPU state:
+    PC: 000000000000011a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000011b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000011c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000011d   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 11
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 02 00 00 00 00  00 00 c2 c2 30 f6 00 03
+  0110  00 00 00 00 00 00 c0 c0  c4 c5 c2 c4 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  39 30 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  61 62 63 64 65 66 67 68  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/A_iotrap_buf_debug.diff b/p4-interp/tests/outputs/A_iotrap_buf_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_iotrap_buf_debug.txt b/p4-interp/tests/outputs/A_iotrap_buf_debug.txt
new file mode 100644
index 0000000..24aa32f
--- /dev/null
+++ b/p4-interp/tests/outputs/A_iotrap_buf_debug.txt
@@ -0,0 +1,330 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+abcdefghY86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000010e   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 5
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 03 00 00 00 00  00 00 c4 c5 c4 00 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  61 62 63 64 65 66 67 68  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/A_iotrap_char_debug.diff b/p4-interp/tests/outputs/A_iotrap_char_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_iotrap_char_debug.txt b/p4-interp/tests/outputs/A_iotrap_char_debug.txt
new file mode 100644
index 0000000..c780e01
--- /dev/null
+++ b/p4-interp/tests/outputs/A_iotrap_char_debug.txt
@@ -0,0 +1,354 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 0
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 0
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+YYY86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x308, %rdi
+Y86 CPU state:
+    PC: 0000000000000117   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 1
+Y86 CPU state:
+    PC: 0000000000000118   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000119   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 7
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 03 00 00 00 00  00 00 c0 c0 c5 30 f7 08
+  0110  03 00 00 00 00 00 00 c1  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  59 00 00 00 00 00 00 00  79 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/A_iotrap_dec_bad.diff b/p4-interp/tests/outputs/A_iotrap_dec_bad.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_iotrap_dec_bad.txt b/p4-interp/tests/outputs/A_iotrap_dec_bad.txt
new file mode 100644
index 0000000..8369d5c
--- /dev/null
+++ b/p4-interp/tests/outputs/A_iotrap_dec_bad.txt
@@ -0,0 +1,13 @@
+Beginning execution at 0x0100
+256256I/O Error
+Y86 CPU state:
+    PC: 0000000000000118   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 6
diff --git a/p4-interp/tests/outputs/A_iotrap_dec_debug.diff b/p4-interp/tests/outputs/A_iotrap_dec_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_iotrap_dec_debug.txt b/p4-interp/tests/outputs/A_iotrap_dec_debug.txt
new file mode 100644
index 0000000..395583e
--- /dev/null
+++ b/p4-interp/tests/outputs/A_iotrap_dec_debug.txt
@@ -0,0 +1,354 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+256256Y86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x308, %rdi
+Y86 CPU state:
+    PC: 0000000000000117   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 3
+Y86 CPU state:
+    PC: 0000000000000118   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000119   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 7
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 03 00 00 00 00  00 00 c2 c2 c5 30 f7 08
+  0110  03 00 00 00 00 00 00 c3  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 01 00 00 00 00 00 00  2a 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/A_iotrap_escaped_string.diff b/p4-interp/tests/outputs/A_iotrap_escaped_string.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_iotrap_escaped_string.txt b/p4-interp/tests/outputs/A_iotrap_escaped_string.txt
new file mode 100644
index 0000000..855776a
--- /dev/null
+++ b/p4-interp/tests/outputs/A_iotrap_escaped_string.txt
@@ -0,0 +1,15 @@
+Beginning execution at 0x0100
+hello!
+ab	c
+'str\ing'
+Y86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 4
diff --git a/p4-interp/tests/outputs/A_iotrap_str_debug.diff b/p4-interp/tests/outputs/A_iotrap_str_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_iotrap_str_debug.txt b/p4-interp/tests/outputs/A_iotrap_str_debug.txt
new file mode 100644
index 0000000..d8c6608
--- /dev/null
+++ b/p4-interp/tests/outputs/A_iotrap_str_debug.txt
@@ -0,0 +1,330 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+abcdefghabcdefghY86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000010e   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 5
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 03 00 00 00 00  00 00 c4 c4 c5 00 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  61 62 63 64 65 66 67 68  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/A_missing_file.diff b/p4-interp/tests/outputs/A_missing_file.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_missing_file.txt b/p4-interp/tests/outputs/A_missing_file.txt
new file mode 100644
index 0000000..a976979
--- /dev/null
+++ b/p4-interp/tests/outputs/A_missing_file.txt
@@ -0,0 +1,13 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+  -e      Execute program
+  -E      Execute program (trace mode)
diff --git a/p4-interp/tests/outputs/A_movflags_debug.diff b/p4-interp/tests/outputs/A_movflags_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_movflags_debug.txt b/p4-interp/tests/outputs/A_movflags_debug.txt
new file mode 100644
index 0000000..cb82d6d
--- /dev/null
+++ b/p4-interp/tests/outputs/A_movflags_debug.txt
@@ -0,0 +1,438 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x200, %rbx
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: rmmovq %rax, 0x0(%rbx)
+Y86 CPU state:
+    PC: 0000000000000128   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x0(%rbx), %rcx
+Y86 CPU state:
+    PC: 0000000000000132   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rax
+Y86 CPU state:
+    PC: 0000000000000134   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rdx
+Y86 CPU state:
+    PC: 0000000000000136   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000140   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x200, %rbx
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: rmmovq %rax, 0x0(%rbx)
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x0(%rbx), %rcx
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: ffffffffffffffff
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rax
+Y86 CPU state:
+    PC: 0000000000000160   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: ffffffffffffffff
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rdx
+Y86 CPU state:
+    PC: 0000000000000162   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: ffffffffffffffff
+  %rdx: ffffffffffffffff    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000163   flags: Z0 S0 O0     HLT
+  %rax: ffffffffffffffff    %rcx: ffffffffffffffff
+  %rdx: ffffffffffffffff    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 14
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f0 00 00 00 00
+  0110  00 00 00 00 30 f3 00 02  00 00 00 00 00 00 40 03
+  0120  00 00 00 00 00 00 00 00  50 13 00 00 00 00 00 00
+  0130  00 00 a0 0f b0 2f 30 f0  ff ff ff ff ff ff ff ff
+  0140  30 f3 00 02 00 00 00 00  00 00 40 03 00 00 00 00
+  0150  00 00 00 00 50 13 00 00  00 00 00 00 00 00 a0 0f
+  0160  b0 2f 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  ff ff ff ff ff ff ff ff  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  ff ff ff ff ff ff ff ff
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/A_opq_of_debug.diff b/p4-interp/tests/outputs/A_opq_of_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_opq_of_debug.txt b/p4-interp/tests/outputs/A_opq_of_debug.txt
new file mode 100644
index 0000000..a61a9dc
--- /dev/null
+++ b/p4-interp/tests/outputs/A_opq_of_debug.txt
@@ -0,0 +1,402 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rbx
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x7fffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: addq %rbx, %rax
+Y86 CPU state:
+    PC: 0000000000000116   flags: Z0 S1 O1     AOK
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x8000000000000000, %rax
+Y86 CPU state:
+    PC: 0000000000000120   flags: Z0 S1 O1     AOK
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: subq %rbx, %rax
+Y86 CPU state:
+    PC: 0000000000000122   flags: Z0 S0 O1     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rbx
+Y86 CPU state:
+    PC: 000000000000012c   flags: Z0 S0 O1     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x8000000000000000, %rax
+Y86 CPU state:
+    PC: 0000000000000136   flags: Z0 S0 O1     AOK
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: addq %rbx, %rax
+Y86 CPU state:
+    PC: 0000000000000138   flags: Z0 S0 O1     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x7fffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000142   flags: Z0 S0 O1     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: subq %rbx, %rax
+Y86 CPU state:
+    PC: 0000000000000144   flags: Z0 S1 O1     AOK
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000145   flags: Z0 S1 O1     HLT
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 11
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 01 00 00 00 00 00  00 00 30 f0 ff ff ff ff
+  0110  ff ff ff 7f 60 30 30 f0  00 00 00 00 00 00 00 80
+  0120  61 30 30 f3 ff ff ff ff  ff ff ff ff 30 f0 00 00
+  0130  00 00 00 00 00 80 60 30  30 f0 ff ff ff ff ff ff
+  0140  ff 7f 61 30 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/A_pushpop_rsp_debug.diff b/p4-interp/tests/outputs/A_pushpop_rsp_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_pushpop_rsp_debug.txt b/p4-interp/tests/outputs/A_pushpop_rsp_debug.txt
new file mode 100644
index 0000000..09827c1
--- /dev/null
+++ b/p4-interp/tests/outputs/A_pushpop_rsp_debug.txt
@@ -0,0 +1,318 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rsp
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rax
+Y86 CPU state:
+    PC: 000000000000010e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000f00    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000010f   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000f00    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 4
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 a0 4f b0 0f 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 0f 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/A_unaligned1.diff b/p4-interp/tests/outputs/A_unaligned1.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_unaligned1.txt b/p4-interp/tests/outputs/A_unaligned1.txt
new file mode 100644
index 0000000..9cb3e52
--- /dev/null
+++ b/p4-interp/tests/outputs/A_unaligned1.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0118
+Y86 CPU state:
+    PC: 000000000000011a   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
diff --git a/p4-interp/tests/outputs/A_unaligned2.diff b/p4-interp/tests/outputs/A_unaligned2.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/A_unaligned2.txt b/p4-interp/tests/outputs/A_unaligned2.txt
new file mode 100644
index 0000000..776899c
--- /dev/null
+++ b/p4-interp/tests/outputs/A_unaligned2.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0555
+Y86 CPU state:
+    PC: 0000000000000574   flags: Z0 S0 O0     HLT
+  %rax: 000000000000014d    %rcx: 000000000000006f
+  %rdx: 0000000000000000    %rbx: 00000000000000de
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 4
diff --git a/p4-interp/tests/outputs/B_func_debug.diff b/p4-interp/tests/outputs/B_func_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/B_func_debug.txt b/p4-interp/tests/outputs/B_func_debug.txt
new file mode 100644
index 0000000..e190928
--- /dev/null
+++ b/p4-interp/tests/outputs/B_func_debug.txt
@@ -0,0 +1,342 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x114
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x11e
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef0    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 000000000000011d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000113   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 6
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 80 14 01 00 00 00
+  0110  00 00 00 00 80 1e 01 00  00 00 00 00 00 90 90 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  1d 01 00 00 00 00 00 00  13 01 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/B_memreg.diff b/p4-interp/tests/outputs/B_memreg.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/B_memreg.txt b/p4-interp/tests/outputs/B_memreg.txt
new file mode 100644
index 0000000..d3ed785
--- /dev/null
+++ b/p4-interp/tests/outputs/B_memreg.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000147   flags: Z0 S0 O0     HLT
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0123456789abcdef
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 8
diff --git a/p4-interp/tests/outputs/B_memreg_debug.diff b/p4-interp/tests/outputs/B_memreg_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/B_memreg_debug.txt b/p4-interp/tests/outputs/B_memreg_debug.txt
new file mode 100644
index 0000000..366e104
--- /dev/null
+++ b/p4-interp/tests/outputs/B_memreg_debug.txt
@@ -0,0 +1,366 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xfedcba9876543210, %rax
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x200, %rbx
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: rmmovq %rax, 0x0(%rbx)
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x0(%rbx), %rcx
+Y86 CPU state:
+    PC: 0000000000000128   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x8(%rbx), %rdx
+Y86 CPU state:
+    PC: 0000000000000132   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: rmmovq %rdx, 0x210
+Y86 CPU state:
+    PC: 000000000000013c   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x210, %rdi
+Y86 CPU state:
+    PC: 0000000000000146   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0123456789abcdef
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000147   flags: Z0 S0 O0     HLT
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0123456789abcdef
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 8
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f0 10 32 54 76 98 ba  dc fe 30 f3 00 02 00 00
+  0110  00 00 00 00 40 03 00 00  00 00 00 00 00 00 50 13
+  0120  00 00 00 00 00 00 00 00  50 23 08 00 00 00 00 00
+  0130  00 00 40 2f 10 02 00 00  00 00 00 00 50 7f 10 02
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  10 32 54 76 98 ba dc fe  ef cd ab 89 67 45 23 01
+  0210  ef cd ab 89 67 45 23 01  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/B_pushpop.diff b/p4-interp/tests/outputs/B_pushpop.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/B_pushpop.txt b/p4-interp/tests/outputs/B_pushpop.txt
new file mode 100644
index 0000000..d6724c3
--- /dev/null
+++ b/p4-interp/tests/outputs/B_pushpop.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000127   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0123456789abcdef
+  %rdx: 0000000000000001    %rbx: 0123456789abcdef
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 8
diff --git a/p4-interp/tests/outputs/B_pushpop_debug.diff b/p4-interp/tests/outputs/B_pushpop_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/B_pushpop_debug.txt b/p4-interp/tests/outputs/B_pushpop_debug.txt
new file mode 100644
index 0000000..9e8fcfd
--- /dev/null
+++ b/p4-interp/tests/outputs/B_pushpop_debug.txt
@@ -0,0 +1,366 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x123456789abcdef, %rbx
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0123456789abcdef
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rax
+Y86 CPU state:
+    PC: 0000000000000120   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0123456789abcdef
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rbx
+Y86 CPU state:
+    PC: 0000000000000122   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0123456789abcdef
+  %rsp: 0000000000000ef0    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rcx
+Y86 CPU state:
+    PC: 0000000000000124   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0123456789abcdef
+  %rdx: 0000000000000000    %rbx: 0123456789abcdef
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rdx
+Y86 CPU state:
+    PC: 0000000000000126   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0123456789abcdef
+  %rdx: 0000000000000001    %rbx: 0123456789abcdef
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000127   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0123456789abcdef
+  %rdx: 0000000000000001    %rbx: 0123456789abcdef
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 8
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f0 01 00 00 00
+  0110  00 00 00 00 30 f3 ef cd  ab 89 67 45 23 01 a0 0f
+  0120  a0 3f b0 1f b0 2f 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  ef cd ab 89 67 45 23 01  01 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/B_simple.diff b/p4-interp/tests/outputs/B_simple.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/B_simple.txt b/p4-interp/tests/outputs/B_simple.txt
new file mode 100644
index 0000000..db77842
--- /dev/null
+++ b/p4-interp/tests/outputs/B_simple.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000005    %rcx: 0000000000000003
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 7
diff --git a/p4-interp/tests/outputs/B_simple_entry.diff b/p4-interp/tests/outputs/B_simple_entry.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/B_simple_entry.txt b/p4-interp/tests/outputs/B_simple_entry.txt
new file mode 100644
index 0000000..46910e2
--- /dev/null
+++ b/p4-interp/tests/outputs/B_simple_entry.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0250
+Y86 CPU state:
+    PC: 0000000000000264   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000005    %rcx: 0000000000000003
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 7
diff --git a/p4-interp/tests/outputs/C_irmovq.diff b/p4-interp/tests/outputs/C_irmovq.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/C_irmovq.txt b/p4-interp/tests/outputs/C_irmovq.txt
new file mode 100644
index 0000000..7681b9f
--- /dev/null
+++ b/p4-interp/tests/outputs/C_irmovq.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000151   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 00000000deadbeef    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 9
diff --git a/p4-interp/tests/outputs/C_irmovq_debug.diff b/p4-interp/tests/outputs/C_irmovq_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/C_irmovq_debug.txt b/p4-interp/tests/outputs/C_irmovq_debug.txt
new file mode 100644
index 0000000..49e4d1d
--- /dev/null
+++ b/p4-interp/tests/outputs/C_irmovq_debug.txt
@@ -0,0 +1,378 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf, %rbx
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1234, %rcx
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 0000000000000000    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1122334455667788, %rdx
+Y86 CPU state:
+    PC: 0000000000000128   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x8877665544332211, %rsi
+Y86 CPU state:
+    PC: 0000000000000132   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rdi
+Y86 CPU state:
+    PC: 000000000000013c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rbp
+Y86 CPU state:
+    PC: 0000000000000146   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xdeadbeef, %rsp
+Y86 CPU state:
+    PC: 0000000000000150   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 00000000deadbeef    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000151   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 00000000deadbeef    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 9
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f0 01 00 00 00 00 00  00 00 30 f3 0f 00 00 00
+  0110  00 00 00 00 30 f1 34 12  00 00 00 00 00 00 30 f2
+  0120  88 77 66 55 44 33 22 11  30 f6 11 22 33 44 55 66
+  0130  77 88 30 f7 ff ff ff ff  ff ff ff ff 30 f5 00 00
+  0140  00 00 00 00 00 00 30 f4  ef be ad de 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/C_opq.diff b/p4-interp/tests/outputs/C_opq.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/C_opq.txt b/p4-interp/tests/outputs/C_opq.txt
new file mode 100644
index 0000000..8d2da4f
--- /dev/null
+++ b/p4-interp/tests/outputs/C_opq.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 000000000000013b   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000008    %rcx: 0000000000000001
+  %rdx: 0000000000000006    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 10
diff --git a/p4-interp/tests/outputs/C_opq_debug.diff b/p4-interp/tests/outputs/C_opq_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/C_opq_debug.txt b/p4-interp/tests/outputs/C_opq_debug.txt
new file mode 100644
index 0000000..e5a122f
--- /dev/null
+++ b/p4-interp/tests/outputs/C_opq_debug.txt
@@ -0,0 +1,390 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x5, %rax
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x5, %rbx
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x5, %rcx
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000005
+  %rdx: 0000000000000000    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x5, %rdx
+Y86 CPU state:
+    PC: 0000000000000128   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000005
+  %rdx: 0000000000000005    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x3, %rdi
+Y86 CPU state:
+    PC: 0000000000000132   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000005
+  %rdx: 0000000000000005    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: addq %rdi, %rax
+Y86 CPU state:
+    PC: 0000000000000134   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000008    %rcx: 0000000000000005
+  %rdx: 0000000000000005    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: subq %rdi, %rbx
+Y86 CPU state:
+    PC: 0000000000000136   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000008    %rcx: 0000000000000005
+  %rdx: 0000000000000005    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rdi, %rcx
+Y86 CPU state:
+    PC: 0000000000000138   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000008    %rcx: 0000000000000001
+  %rdx: 0000000000000005    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: xorq %rdi, %rdx
+Y86 CPU state:
+    PC: 000000000000013a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000008    %rcx: 0000000000000001
+  %rdx: 0000000000000006    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000013b   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000008    %rcx: 0000000000000001
+  %rdx: 0000000000000006    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 10
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f0 05 00 00 00 00 00  00 00 30 f3 05 00 00 00
+  0110  00 00 00 00 30 f1 05 00  00 00 00 00 00 00 30 f2
+  0120  05 00 00 00 00 00 00 00  30 f7 03 00 00 00 00 00
+  0130  00 00 60 70 61 73 62 71  63 72 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/outputs/D_help.diff b/p4-interp/tests/outputs/D_help.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/D_help.txt b/p4-interp/tests/outputs/D_help.txt
new file mode 100644
index 0000000..a976979
--- /dev/null
+++ b/p4-interp/tests/outputs/D_help.txt
@@ -0,0 +1,13 @@
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+  -e      Execute program
+  -E      Execute program (trace mode)
diff --git a/p4-interp/tests/outputs/D_nop_hlt.diff b/p4-interp/tests/outputs/D_nop_hlt.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/D_nop_hlt.txt b/p4-interp/tests/outputs/D_nop_hlt.txt
new file mode 100644
index 0000000..16f14a7
--- /dev/null
+++ b/p4-interp/tests/outputs/D_nop_hlt.txt
@@ -0,0 +1,12 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000102   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
diff --git a/p4-interp/tests/outputs/D_nop_hlt_debug.diff b/p4-interp/tests/outputs/D_nop_hlt_debug.diff
new file mode 100644
index 0000000..e69de29
diff --git a/p4-interp/tests/outputs/D_nop_hlt_debug.txt b/p4-interp/tests/outputs/D_nop_hlt_debug.txt
new file mode 100644
index 0000000..3012b2f
--- /dev/null
+++ b/p4-interp/tests/outputs/D_nop_hlt_debug.txt
@@ -0,0 +1,294 @@
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000101   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000102   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  10 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
diff --git a/p4-interp/tests/private.o b/p4-interp/tests/private.o
new file mode 100644
index 0000000..69e18e9
Binary files /dev/null and b/p4-interp/tests/private.o differ
diff --git a/p4-interp/tests/public.c b/p4-interp/tests/public.c
new file mode 100644
index 0000000..253a694
--- /dev/null
+++ b/p4-interp/tests/public.c
@@ -0,0 +1,329 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include <check.h>
+
+#include "../p4-interp.h"
+
+/* check decoding and execution of the HALT instruction */
+START_TEST (D_func_decode_halt)
+{
+    y86_t cpu;
+    y86_inst_t inst;
+    bool cnd = false;
+    y86_reg_t valA = 0;
+    y86_reg_t valE = 0;
+
+    memset (&inst, 0, sizeof (inst));
+    inst.icode = HALT;
+
+    memset (&cpu, 0, sizeof (cpu));
+    cpu.stat = AOK;
+
+    valE = decode_execute (&cpu, &inst, &cnd, &valA);
+    ck_assert (valE == 0 || valE != 0);
+    ck_assert (cpu.stat == HLT);
+}
+END_TEST
+
+/* check decoding and execution of the NOP instruction */
+START_TEST (D_func_decode_nop)
+{
+    y86_t cpu;
+    y86_inst_t inst;
+    bool cnd = false;
+    y86_reg_t valA = 0;
+    y86_reg_t valE = 0;
+
+    memset (&inst, 0, sizeof (inst));
+    inst.icode = NOP;
+
+    memset (&cpu, 0, sizeof (cpu));
+    cpu.stat = AOK;
+
+    valE = decode_execute (&cpu, &inst, &cnd, &valA);
+    ck_assert (valE == 0 || valE != 0);
+    ck_assert (cpu.stat == AOK);
+}
+END_TEST
+
+/* check memory, writeback, and PC update of the HALT instruction */
+START_TEST (D_func_memory_halt)
+{
+    y86_t cpu;
+    byte_t *memory = malloc (MEMSIZE);
+    y86_inst_t inst;
+    bool cnd = false;
+    y86_reg_t valA;
+    y86_reg_t valE;
+
+    memset (&cpu, 0, sizeof (cpu));
+    memset (memory, 0, MEMSIZE);
+    memset (&inst, 0, sizeof (inst));
+    cpu.stat = AOK;
+    valA = valE = 0;
+
+    inst.icode = HALT;
+    inst.valP = rand() % MEMSIZE;
+    memory_wb_pc (&cpu, &inst, memory, cnd, valA, valE);
+    ck_assert (cpu.pc == inst.valP);
+}
+END_TEST
+
+/* check memory, writeback, and PC update of the NOP instruction */
+START_TEST (D_func_memory_nop)
+{
+    y86_t cpu;
+    byte_t *memory = malloc (MEMSIZE);
+    y86_inst_t inst;
+    bool cnd = false;
+    y86_reg_t valA;
+    y86_reg_t valE;
+
+    memset (&cpu, 0, sizeof (cpu));
+    memset (memory, 0, MEMSIZE);
+    memset (&inst, 0, sizeof (inst));
+    cpu.stat = AOK;
+    valA = valE = 0;
+
+    inst.icode = NOP;
+    inst.valP = rand() % MEMSIZE;
+    memory_wb_pc (&cpu, &inst, memory, cnd, valA, valE);
+    ck_assert (cpu.pc == inst.valP);
+}
+END_TEST
+
+/* check for null-pointer handling */
+START_TEST (D_error_decode_NULL_cnd_valA)
+{
+    y86_t cpu;
+    y86_inst_t inst;
+    y86_reg_t valE = 0;
+
+    memset (&inst, 0, sizeof (inst));
+    memset (&cpu, 0, sizeof (cpu));
+    cpu.stat = AOK;
+
+    inst.icode = NOP;
+    valE = decode_execute (&cpu, &inst, NULL, NULL);
+    ck_assert (valE == 0 || valE != 0);
+    ck_assert (cpu.stat == INS);
+}
+END_TEST
+
+/* helper function: extract the given register value from a CPU state */
+static y86_reg_t _check_get_reg (y86_t *cpu, y86_regnum_t num)
+{
+    return cpu->reg[num];
+}
+
+/* check decoding and execution of the IRMOVQ instruction */
+START_TEST (C_func_decode_irmovq)
+{
+    y86_t cpu;
+    y86_inst_t inst;
+    bool cnd = false;
+    y86_reg_t valA = 0;
+    y86_reg_t valE = 0;
+
+    /* assemble test instruction and initial CPU state */
+    memset (&inst, 0, sizeof (inst));
+    inst.icode = IRMOVQ;
+    memset (&cpu, 0, sizeof (cpu));
+    cpu.stat = AOK;
+    inst.valC.v = 0 + rand();
+    inst.rb = (y86_regnum_t)(rand() % NOREG);		/* random register */
+
+    /* test: load a positive value */
+    valE = decode_execute (&cpu, &inst, &cnd, &valA);
+    ck_assert (valE == (y86_reg_t)inst.valC.v);
+    ck_assert (cpu.sf == 0);
+    ck_assert (cpu.zf == 0);
+    ck_assert (_check_get_reg (&cpu, inst.rb) == 0);
+
+    /* test: load a negative value */
+    inst.valC.v = -inst.valC.v;
+    valE = decode_execute (&cpu, &inst, &cnd, &valA);
+    ck_assert (valE == (y86_reg_t)inst.valC.v);
+    ck_assert (cpu.sf == 0);
+    ck_assert (cpu.zf == 0);
+    ck_assert (_check_get_reg (&cpu, inst.rb) == 0);
+
+    /* test: load a zero value */
+    inst.valC.v = 0;
+    valE = decode_execute (&cpu, &inst, &cnd, &valA);
+    ck_assert (valE == (y86_reg_t)inst.valC.v);
+    ck_assert (cpu.sf == 0);
+    ck_assert (cpu.zf == 0);
+    ck_assert (_check_get_reg (&cpu, inst.rb) == 0);
+}
+END_TEST
+
+/* helper function: set the given register value in a CPU state */
+static void _check_set_reg (y86_t *cpu, y86_regnum_t num, y86_reg_t val)
+{
+    cpu->reg[num] = val;
+}
+
+/* check decoding and execution of the OPq instructions (no CC testing) */
+START_TEST (C_func_decode_opq)
+{
+    y86_t cpu;
+    y86_inst_t inst;
+    bool cnd = false;
+    y86_reg_t valA = 0;
+    y86_reg_t valE = 0;
+    y86_reg_t expected_valE = 0;
+    y86_reg_t regs[NOREG];
+    uint8_t i = 0;
+
+    memset (&inst, 0, sizeof (inst));
+    inst.icode = OPQ;
+
+    memset (&cpu, 0, sizeof (cpu));
+    cpu.stat = AOK;
+    for (i = RAX; i < NOREG; i++)
+    {
+        /* set registers to random values */
+        regs[i] = (((int64_t)rand()) << 32) | rand();
+        _check_set_reg (&cpu, i, regs[i]);
+    }
+
+    /* addition */
+    inst.ra = (y86_regnum_t)(rand() % NOREG);
+    inst.rb = (y86_regnum_t)(rand() % NOREG);
+    inst.ifun.op = ADD;
+    expected_valE = _check_get_reg (&cpu, inst.ra) + _check_get_reg (&cpu, inst.rb);
+    valE = decode_execute (&cpu, &inst, &cnd, &valA);
+    ck_assert (valE == expected_valE);
+    ck_assert (regs[inst.ra] == _check_get_reg (&cpu, inst.ra));
+    ck_assert (regs[inst.rb] == _check_get_reg (&cpu, inst.rb));
+
+    /* subtraction */
+    inst.ra = (y86_regnum_t)(rand() % NOREG);
+    inst.rb = (y86_regnum_t)(rand() % NOREG);
+    inst.ifun.op = SUB;
+    expected_valE = _check_get_reg (&cpu, inst.rb) - _check_get_reg (&cpu, inst.ra);
+    valE = decode_execute (&cpu, &inst, &cnd, &valA);
+    ck_assert (valE == expected_valE);
+    ck_assert (regs[inst.ra] == _check_get_reg (&cpu, inst.ra));
+    ck_assert (regs[inst.rb] == _check_get_reg (&cpu, inst.rb));
+
+    /* bitwise AND */
+    inst.ra = (y86_regnum_t)(rand() % NOREG);
+    inst.rb = (y86_regnum_t)(rand() % NOREG);
+    inst.ifun.op = AND;
+    expected_valE = _check_get_reg (&cpu, inst.ra) & _check_get_reg (&cpu, inst.rb);
+    valE = decode_execute (&cpu, &inst, &cnd, &valA);
+    ck_assert (valE == expected_valE);
+    ck_assert (regs[inst.ra] == _check_get_reg (&cpu, inst.ra));
+    ck_assert (regs[inst.rb] == _check_get_reg (&cpu, inst.rb));
+
+    /* bitwise XOR */
+    inst.ra = (y86_regnum_t)(rand() % NOREG);
+    inst.rb = (y86_regnum_t)(rand() % NOREG);
+    inst.ifun.op = XOR;
+    expected_valE = _check_get_reg (&cpu, inst.ra) ^ _check_get_reg (&cpu, inst.rb);
+    valE = decode_execute (&cpu, &inst, &cnd, &valA);
+    ck_assert (valE == expected_valE);
+    ck_assert (regs[inst.ra] == _check_get_reg (&cpu, inst.ra));
+    ck_assert (regs[inst.rb] == _check_get_reg (&cpu, inst.rb));
+}
+END_TEST
+
+/* check handling of invalid OPq instruction */
+START_TEST (C_error_decode_invalid_opq)
+{
+    y86_t cpu;
+    y86_inst_t inst;
+    bool cnd = false;
+    y86_reg_t valA = 0;
+    y86_reg_t valE = 0;
+
+    memset (&inst, 0, sizeof (inst));
+    memset (&cpu, 0, sizeof (cpu));
+    cpu.stat = AOK;
+
+    inst.icode = OPQ;
+    inst.ifun.op = BADOP;
+    valE = decode_execute (&cpu, &inst, &cnd, &valA);
+    ck_assert (valE == 0 || valE != 0);
+    ck_assert (cpu.stat == INS);
+}
+END_TEST
+
+/* check memory, writeback, and PC update of the IRMOVQ instruction */
+START_TEST (C_func_memory_irmovq)
+{
+    y86_t cpu;
+    byte_t *memory = malloc (MEMSIZE);
+    y86_inst_t inst;
+    bool cnd = false;
+    y86_reg_t valA;
+    y86_reg_t valE;
+
+    for (y86_regnum_t reg = RAX; reg < NOREG; reg++) {
+        valA = 0;
+        memset (&cpu, 0, sizeof (cpu));
+        memset (memory, 0, MEMSIZE);
+        memset (&inst, 0, sizeof (inst));
+        cpu.stat = AOK;
+
+        inst.icode = IRMOVQ;
+        inst.rb = reg;
+        inst.valP = rand() % MEMSIZE;
+        valE = rand();
+        memory_wb_pc (&cpu, &inst, memory, cnd, valA, valE);
+        ck_assert (cpu.stat == AOK);
+        ck_assert (cpu.reg[reg] == valE);
+        ck_assert (cpu.pc == inst.valP);
+    }
+}
+END_TEST
+
+/* check memory, writeback, and PC update of the OPQ instruction */
+START_TEST (C_func_memory_opq)
+{
+    y86_t cpu;
+    byte_t *memory = malloc (MEMSIZE);
+    y86_inst_t inst;
+    bool cnd = false;
+    y86_reg_t valA;
+    y86_reg_t valE;
+
+    for (y86_regnum_t reg = RAX; reg < NOREG; reg++) {
+        valA = 0;
+        memset (&cpu, 0, sizeof (cpu));
+        memset (memory, 0, MEMSIZE);
+        memset (&inst, 0, sizeof (inst));
+        cpu.stat = AOK;
+
+        inst.icode = OPQ;
+        inst.rb = reg;
+        inst.valP = rand() % MEMSIZE;
+        valE = rand();
+        memory_wb_pc (&cpu, &inst, memory, cnd, valA, valE);
+        ck_assert (cpu.stat == AOK);
+        ck_assert (cpu.reg[reg] == valE);
+        ck_assert (cpu.pc == inst.valP);
+    }
+}
+END_TEST
+
+void public_tests (Suite *s)
+{
+    TCase *tc_public = tcase_create ("Public");
+    tcase_add_test (tc_public, D_func_decode_halt);
+    tcase_add_test (tc_public, D_func_decode_nop);
+    tcase_add_test (tc_public, D_func_memory_halt);
+    tcase_add_test (tc_public, D_func_memory_nop);
+    tcase_add_test (tc_public, D_error_decode_NULL_cnd_valA);
+    tcase_add_test (tc_public, C_func_decode_irmovq);
+    tcase_add_test (tc_public, C_func_decode_opq);
+    tcase_add_test (tc_public, C_func_memory_irmovq);
+    tcase_add_test (tc_public, C_func_memory_opq);
+    tcase_add_test (tc_public, C_error_decode_invalid_opq);
+    suite_add_tcase (s, tc_public);
+}
+
diff --git a/p4-interp/tests/public.o b/p4-interp/tests/public.o
new file mode 100644
index 0000000..82daa8e
Binary files /dev/null and b/p4-interp/tests/public.o differ
diff --git a/p4-interp/tests/src/bad_addr.ys b/p4-interp/tests/src/bad_addr.ys
new file mode 100644
index 0000000..63dc044
--- /dev/null
+++ b/p4-interp/tests/src/bad_addr.ys
@@ -0,0 +1,9 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x100 code
+_start:
+    irmovq $123456, %rbx
+    mrmovq (%rbx), %rax
+    halt
+
diff --git a/p4-interp/tests/src/bad_nostack.ys b/p4-interp/tests/src/bad_nostack.ys
new file mode 100644
index 0000000..06ec136
--- /dev/null
+++ b/p4-interp/tests/src/bad_nostack.ys
@@ -0,0 +1,13 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x100 code
+_start:
+    call foo
+    halt
+
+foo:
+    ret
+
+.pos 0xf00 stack
+_stack:
diff --git a/p4-interp/tests/src/cjmp.ys b/p4-interp/tests/src/cjmp.ys
new file mode 100644
index 0000000..ff6ea96
--- /dev/null
+++ b/p4-interp/tests/src/cjmp.ys
@@ -0,0 +1,48 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x100 code
+_start:
+    irmovq _stack, %rsp
+
+    irmovq $1, %rax         # positive number
+    andq %rax, %rax         # set CC
+    call dotest
+
+    irmovq $-1, %rax        # negative number
+    andq %rax, %rax         # set CC
+    call dotest
+
+    irmovq $0, %rax         # zero
+    andq %rax, %rax         # set CC
+    call dotest
+
+    halt
+
+dotest:
+    jmp posjmp
+    nop
+posjmp:
+    jle posle
+    nop
+posle:
+    jl posl
+    nop
+posl:
+    je pose
+    nop
+pose:
+    jne posne
+    nop
+posne:
+    jge posge
+    nop
+posge:
+    jg posg
+    nop
+posg:
+    ret
+
+.pos 0xf00 stack
+_stack:
+
diff --git a/p4-interp/tests/src/cmov.ys b/p4-interp/tests/src/cmov.ys
new file mode 100644
index 0000000..1691592
--- /dev/null
+++ b/p4-interp/tests/src/cmov.ys
@@ -0,0 +1,40 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x100 code
+_start:
+    irmovq _stack, %rsp
+
+    irmovq $1, %rax         # positive number
+    andq %rax, %rax         # set CC
+    call dotest
+
+    irmovq $-1, %rax        # negative number
+    andq %rax, %rax         # set CC
+    call dotest
+
+    irmovq $0, %rax         # zero
+    andq %rax, %rax         # set CC
+    call dotest
+
+    halt
+
+dotest:
+    irmovq $1, %rax
+    irmovq $0, %rdx
+    cmovle %rax, %rdx
+    irmovq $0, %rdx
+    cmovl %rax, %rdx
+    irmovq $0, %rdx
+    cmove %rax, %rdx
+    irmovq $0, %rdx
+    cmovne %rax, %rdx
+    irmovq $0, %rdx
+    cmovge %rax, %rdx
+    irmovq $0, %rdx
+    cmovg %rax, %rdx
+    ret
+
+.pos 0xf00 stack
+_stack:
+
diff --git a/p4-interp/tests/src/func.ys b/p4-interp/tests/src/func.ys
new file mode 100644
index 0000000..8ee3434
--- /dev/null
+++ b/p4-interp/tests/src/func.ys
@@ -0,0 +1,18 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x100 code
+_start:
+    irmovq _stack, %rsp
+    call foo
+    halt
+
+foo:
+    call bar
+    ret
+
+bar:
+    ret
+
+.pos 0xf00 stack
+_stack:
diff --git a/p4-interp/tests/src/iotrap_buf.ys b/p4-interp/tests/src/iotrap_buf.ys
new file mode 100644
index 0000000..b157259
--- /dev/null
+++ b/p4-interp/tests/src/iotrap_buf.ys
@@ -0,0 +1,14 @@
+.pos 0x000 code
+  jmp 0x100
+
+.pos 0x100 code
+_start:
+  irmovq outval, %rsi
+  iotrap 4
+  iotrap 5
+  iotrap 4
+  halt
+
+.pos 0x300 rodata
+outval:
+  .string "abcdefgh"
diff --git a/p4-interp/tests/src/iotrap_buf2.ys b/p4-interp/tests/src/iotrap_buf2.ys
new file mode 100644
index 0000000..528a12f
--- /dev/null
+++ b/p4-interp/tests/src/iotrap_buf2.ys
@@ -0,0 +1,24 @@
+.pos 0x000 code
+  jmp 0x100
+
+.pos 0x100 code
+_start:
+  irmovq outint, %rsi
+  iotrap 2
+  iotrap 2
+  irmovq outstr, %rsi
+  iotrap 0
+  iotrap 0
+  iotrap 4
+  iotrap 5
+  iotrap 2
+  iotrap 4
+  halt
+
+.pos 0x200 data
+outint:
+  .quad 12345
+
+.pos 0x300 rodata
+outstr:
+  .string "abcdefgh"
diff --git a/p4-interp/tests/src/iotrap_char.ys b/p4-interp/tests/src/iotrap_char.ys
new file mode 100644
index 0000000..53ef435
--- /dev/null
+++ b/p4-interp/tests/src/iotrap_char.ys
@@ -0,0 +1,18 @@
+.pos 0x000 code
+  jmp 0x100
+
+.pos 0x100 code
+_start:
+  irmovq outval, %rsi
+  iotrap 0
+  iotrap 0
+  iotrap 5
+  irmovq inval, %rdi
+  iotrap 1
+  halt
+
+.pos 0x300 data
+outval:
+  .quad 0x59
+inval:
+  .quad 0x0
diff --git a/p4-interp/tests/src/iotrap_dec.ys b/p4-interp/tests/src/iotrap_dec.ys
new file mode 100644
index 0000000..a7f9fb5
--- /dev/null
+++ b/p4-interp/tests/src/iotrap_dec.ys
@@ -0,0 +1,18 @@
+.pos 0x000 code
+  jmp 0x100
+
+.pos 0x100 code
+_start:
+  irmovq outval, %rsi
+  iotrap 2
+  iotrap 2
+  iotrap 5
+  irmovq inval, %rdi
+  iotrap 3
+  halt
+
+.pos 0x300 data
+outval:
+  .quad 0x100
+inval:
+  .quad 0x0
diff --git a/p4-interp/tests/src/iotrap_str.ys b/p4-interp/tests/src/iotrap_str.ys
new file mode 100644
index 0000000..c148c40
--- /dev/null
+++ b/p4-interp/tests/src/iotrap_str.ys
@@ -0,0 +1,14 @@
+.pos 0x000 code
+  jmp 0x100
+
+.pos 0x100 code
+_start:
+  irmovq outval, %rsi
+  iotrap 4
+  iotrap 4
+  iotrap 5
+  halt
+
+.pos 0x300 rodata
+outval:
+  .string "abcdefgh"
diff --git a/p4-interp/tests/src/iotrap_str_esc.ys b/p4-interp/tests/src/iotrap_str_esc.ys
new file mode 100644
index 0000000..57baed9
--- /dev/null
+++ b/p4-interp/tests/src/iotrap_str_esc.ys
@@ -0,0 +1,10 @@
+.pos 0x100 code
+_start:
+    irmovq str, %rsi
+    iotrap 4
+    iotrap 5
+    halt
+
+.pos 0x300 rodata
+str:
+    .string "hello!\nab\tc\n'str\\ing'\n\0done"
diff --git a/p4-interp/tests/src/irmovq.ys b/p4-interp/tests/src/irmovq.ys
new file mode 100644
index 0000000..595e155
--- /dev/null
+++ b/p4-interp/tests/src/irmovq.ys
@@ -0,0 +1,14 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x100 code
+_start:
+    irmovq $0x1, %rax
+    irmovq $0xF, %rbx
+    irmovq $0x1234, %rcx
+    irmovq $0x1122334455667788, %rdx
+    irmovq $0x8877665544332211, %rsi
+    irmovq $0xFFFFFFFFFFFFFFFF, %rdi
+    irmovq $0x0, %rbp
+    irmovq $0xDEADBEEF, %rsp
+    halt
diff --git a/p4-interp/tests/src/memreg.ys b/p4-interp/tests/src/memreg.ys
new file mode 100644
index 0000000..44a5fe8
--- /dev/null
+++ b/p4-interp/tests/src/memreg.ys
@@ -0,0 +1,18 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x100 code
+_start:
+    irmovq $0xfedcba9876543210, %rax
+    irmovq $0x200, %rbx
+    rmmovq %rax, (%rbx)
+    mrmovq (%rbx), %rcx
+    mrmovq 8(%rbx), %rdx
+    rmmovq %rdx, 0x210
+    mrmovq 0x210, %rdi
+    halt
+
+.pos 0x200 data
+    .quad 0x0
+    .quad 0x0123456789abcdef
+    .quad 0x0
diff --git a/p4-interp/tests/src/movflags.ys b/p4-interp/tests/src/movflags.ys
new file mode 100644
index 0000000..1555dbf
--- /dev/null
+++ b/p4-interp/tests/src/movflags.ys
@@ -0,0 +1,30 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x100 code
+_start:
+    irmovq _stack, %rsp
+
+    irmovq $0, %rax
+    irmovq data1, %rbx
+    rmmovq %rax, (%rbx)
+    mrmovq (%rbx), %rcx
+    pushq %rax
+    popq %rdx
+
+    irmovq $-1, %rax
+    irmovq data1, %rbx
+    rmmovq %rax, (%rbx)
+    mrmovq (%rbx), %rcx
+    pushq %rax
+    popq %rdx
+
+    halt
+
+.pos 0x200 data
+data1:
+    .quad 0
+
+.pos 0xf00 stack
+_stack:
+
diff --git a/p4-interp/tests/src/nop_hlt.ys b/p4-interp/tests/src/nop_hlt.ys
new file mode 100644
index 0000000..3fdae97
--- /dev/null
+++ b/p4-interp/tests/src/nop_hlt.ys
@@ -0,0 +1,7 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x100 code
+_start:
+    nop
+    halt
diff --git a/p4-interp/tests/src/opq.ys b/p4-interp/tests/src/opq.ys
new file mode 100644
index 0000000..0907249
--- /dev/null
+++ b/p4-interp/tests/src/opq.ys
@@ -0,0 +1,15 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x100 code
+_start:
+    irmovq $5, %rax
+    irmovq $5, %rbx
+    irmovq $5, %rcx
+    irmovq $5, %rdx
+    irmovq $3, %rdi
+    addq %rdi, %rax
+    subq %rdi, %rbx
+    andq %rdi, %rcx
+    xorq %rdi, %rdx
+    halt
diff --git a/p4-interp/tests/src/opq_of.ys b/p4-interp/tests/src/opq_of.ys
new file mode 100644
index 0000000..973978b
--- /dev/null
+++ b/p4-interp/tests/src/opq_of.ys
@@ -0,0 +1,18 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x100 code
+_start:
+    irmovq $0x1, %rbx
+    irmovq $0x7FFFFFFFFFFFFFFF, %rax
+    addq %rbx, %rax
+    irmovq $0x8000000000000000, %rax
+    subq %rbx, %rax
+
+    irmovq $0xFFFFFFFFFFFFFFFF, %rbx
+    irmovq $0x8000000000000000, %rax
+    addq %rbx, %rax
+    irmovq $0x7FFFFFFFFFFFFFFF, %rax
+    subq %rbx, %rax
+
+    halt
diff --git a/p4-interp/tests/src/pushpop.ys b/p4-interp/tests/src/pushpop.ys
new file mode 100644
index 0000000..85aaa11
--- /dev/null
+++ b/p4-interp/tests/src/pushpop.ys
@@ -0,0 +1,16 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x100 code
+_start:
+    irmovq _stack, %rsp
+    irmovq $0x1, %rax
+    irmovq $0x123456789abcdef, %rbx
+    pushq %rax
+    pushq %rbx
+    popq %rcx
+    popq %rdx
+    halt
+
+.pos 0xf00 stack
+_stack:
diff --git a/p4-interp/tests/src/pushpop_rsp.ys b/p4-interp/tests/src/pushpop_rsp.ys
new file mode 100644
index 0000000..d91d667
--- /dev/null
+++ b/p4-interp/tests/src/pushpop_rsp.ys
@@ -0,0 +1,12 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x100 code
+_start:
+    irmovq _stack, %rsp
+    pushq %rsp
+    popq %rax
+    halt
+
+.pos 0xf00 stack
+_stack:
diff --git a/p4-interp/tests/src/simple.ys b/p4-interp/tests/src/simple.ys
new file mode 100644
index 0000000..ad667a2
--- /dev/null
+++ b/p4-interp/tests/src/simple.ys
@@ -0,0 +1,17 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x100 code
+_start:
+    irmovq _stack, %rsp
+    call main
+    halt
+
+main:
+    irmovq $0x2, %rax
+    irmovq $0x3, %rcx
+    addq %rcx, %rax
+    ret
+
+.pos 0xf00 stack
+_stack:
diff --git a/p4-interp/tests/src/simple_entry.ys b/p4-interp/tests/src/simple_entry.ys
new file mode 100644
index 0000000..15c9af1
--- /dev/null
+++ b/p4-interp/tests/src/simple_entry.ys
@@ -0,0 +1,17 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x250 code
+_start:
+    irmovq _stack, %rsp
+    call main
+    halt
+
+main:
+    irmovq $0x2, %rax
+    irmovq $0x3, %rcx
+    addq %rcx, %rax
+    ret
+
+.pos 0xf00 stack
+_stack:
diff --git a/p4-interp/tests/src/unaligned.ys b/p4-interp/tests/src/unaligned.ys
new file mode 100644
index 0000000..fda24a0
--- /dev/null
+++ b/p4-interp/tests/src/unaligned.ys
@@ -0,0 +1,10 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x118 code
+_start:
+    nop
+    halt
+
+.pos 0x13a data
+    .quad 12345
diff --git a/p4-interp/tests/src/unaligned2.ys b/p4-interp/tests/src/unaligned2.ys
new file mode 100644
index 0000000..f568ea8
--- /dev/null
+++ b/p4-interp/tests/src/unaligned2.ys
@@ -0,0 +1,12 @@
+.pos 0 code
+    jmp _start
+
+.pos 0x555 code
+_start:
+    irmovq $333, %rax
+    irmovq $222, %rbx
+    irmovq $111, %rcx
+    halt
+
+.pos 0x987 data
+    .quad 0xaabbccdd
diff --git a/p4-interp/tests/testsuite b/p4-interp/tests/testsuite
new file mode 100644
index 0000000..bdf2442
Binary files /dev/null and b/p4-interp/tests/testsuite differ
diff --git a/p4-interp/tests/testsuite.c b/p4-interp/tests/testsuite.c
new file mode 100644
index 0000000..717c193
--- /dev/null
+++ b/p4-interp/tests/testsuite.c
@@ -0,0 +1,34 @@
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <assert.h>
+#include <time.h>
+
+#include <check.h>
+
+extern void public_tests (Suite *s);
+extern void private_tests (Suite *s);
+
+Suite * test_suite (void)
+{
+    Suite *s = suite_create ("Default");
+    public_tests (s);
+    private_tests (s);
+    return s;
+}
+
+void run_testsuite (void)
+{
+    Suite *s = test_suite ();
+    SRunner *sr = srunner_create (s);
+    srunner_run_all (sr, CK_NORMAL);
+    srunner_free (sr);
+}
+
+int main (void)
+{
+    srand((unsigned)time(NULL));
+    run_testsuite ();
+    return EXIT_SUCCESS;
+}
diff --git a/p4-interp/tests/testsuite.o b/p4-interp/tests/testsuite.o
new file mode 100644
index 0000000..3899e92
Binary files /dev/null and b/p4-interp/tests/testsuite.o differ
diff --git a/p4-interp/tests/utests.txt b/p4-interp/tests/utests.txt
new file mode 100644
index 0000000..d5a4ce9
--- /dev/null
+++ b/p4-interp/tests/utests.txt
@@ -0,0 +1,2 @@
+Running suite(s): Default
+100%: Checks: 33, Failures: 0, Errors: 0
diff --git a/p4-interp/tests/valgrind/A_bad_addr.txt b/p4-interp/tests/valgrind/A_bad_addr.txt
new file mode 100644
index 0000000..396677a
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_bad_addr.txt
@@ -0,0 +1,26 @@
+==4085977== Memcheck, a memory error detector
+==4085977== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085977== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085977== Command: ../y86 -e inputs/bad_addr.o
+==4085977== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     ADR
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 000000000001e240
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
+==4085977== 
+==4085977== HEAP SUMMARY:
+==4085977==     in use at exit: 0 bytes in 0 blocks
+==4085977==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085977== 
+==4085977== All heap blocks were freed -- no leaks are possible
+==4085977== 
+==4085977== For lists of detected and suppressed errors, rerun with: -s
+==4085977== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_bad_addr_debug.txt b/p4-interp/tests/valgrind/A_bad_addr_debug.txt
new file mode 100644
index 0000000..eb51c61
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_bad_addr_debug.txt
@@ -0,0 +1,308 @@
+==4086006== Memcheck, a memory error detector
+==4086006== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086006== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086006== Command: ../y86 -E inputs/bad_addr.o
+==4086006== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1e240, %rbx
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 000000000001e240
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x0(%rbx), %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     ADR
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 000000000001e240
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 40 e2 01 00 00 00  00 00 50 03 00 00 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4086006== 
+==4086006== HEAP SUMMARY:
+==4086006==     in use at exit: 0 bytes in 0 blocks
+==4086006==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4086006== 
+==4086006== All heap blocks were freed -- no leaks are possible
+==4086006== 
+==4086006== For lists of detected and suppressed errors, rerun with: -s
+==4086006== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_bad_insn.txt b/p4-interp/tests/valgrind/A_bad_insn.txt
new file mode 100644
index 0000000..6da83dc
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_bad_insn.txt
@@ -0,0 +1,26 @@
+==4086119== Memcheck, a memory error detector
+==4086119== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086119== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086119== Command: ../y86 -e inputs/bad_insn.o
+==4086119== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     INS
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 134031200000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 1
+==4086119== 
+==4086119== HEAP SUMMARY:
+==4086119==     in use at exit: 0 bytes in 0 blocks
+==4086119==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4086119== 
+==4086119== All heap blocks were freed -- no leaks are possible
+==4086119== 
+==4086119== For lists of detected and suppressed errors, rerun with: -s
+==4086119== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_bad_insn_debug.txt b/p4-interp/tests/valgrind/A_bad_insn_debug.txt
new file mode 100644
index 0000000..7cd21be
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_bad_insn_debug.txt
@@ -0,0 +1,308 @@
+==4086155== Memcheck, a memory error detector
+==4086155== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086155== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086155== Command: ../y86 -E inputs/bad_insn.o
+==4086155== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x134031200000000f, %rbx
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 134031200000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Invalid instruction at 0x010a
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     INS
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 134031200000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 1
+
+Contents of memory from 0000 to 1000:
+  0000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 0f 00 00 00 20 31  40 13 fd ff ff ff 60 31
+  0110  70 08 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  aa bb cc dd 00 00 00 dd  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4086155== 
+==4086155== HEAP SUMMARY:
+==4086155==     in use at exit: 0 bytes in 0 blocks
+==4086155==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4086155== 
+==4086155== All heap blocks were freed -- no leaks are possible
+==4086155== 
+==4086155== For lists of detected and suppressed errors, rerun with: -s
+==4086155== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_bad_nostack.txt b/p4-interp/tests/valgrind/A_bad_nostack.txt
new file mode 100644
index 0000000..f65a5d5
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_bad_nostack.txt
@@ -0,0 +1,26 @@
+==4086179== Memcheck, a memory error detector
+==4086179== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086179== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086179== Command: ../y86 -e inputs/bad_nostack.o
+==4086179== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     ADR
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 1
+==4086179== 
+==4086179== HEAP SUMMARY:
+==4086179==     in use at exit: 0 bytes in 0 blocks
+==4086179==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4086179== 
+==4086179== All heap blocks were freed -- no leaks are possible
+==4086179== 
+==4086179== For lists of detected and suppressed errors, rerun with: -s
+==4086179== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_both_flags.txt b/p4-interp/tests/valgrind/A_both_flags.txt
new file mode 100644
index 0000000..0f062dd
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_both_flags.txt
@@ -0,0 +1,27 @@
+==4086367== Memcheck, a memory error detector
+==4086367== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086367== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086367== Command: ../y86 -e -E inputs/simple.o
+==4086367== 
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+  -e      Execute program
+  -E      Execute program (trace mode)
+==4086367== 
+==4086367== HEAP SUMMARY:
+==4086367==     in use at exit: 0 bytes in 0 blocks
+==4086367==   total heap usage: 1 allocs, 1 frees, 8,192 bytes allocated
+==4086367== 
+==4086367== All heap blocks were freed -- no leaks are possible
+==4086367== 
+==4086367== For lists of detected and suppressed errors, rerun with: -s
+==4086367== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_cjmp_debug.txt b/p4-interp/tests/valgrind/A_cjmp_debug.txt
new file mode 100644
index 0000000..814b16b
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_cjmp_debug.txt
@@ -0,0 +1,812 @@
+==4085644== Memcheck, a memory error detector
+==4085644== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085644== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085644== Command: ../y86 -E inputs/cjmp.o
+==4085644== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 0000000000000116   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jmp 0x154
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jle 0x15e
+Y86 CPU state:
+    PC: 000000000000015d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jl 0x168
+Y86 CPU state:
+    PC: 0000000000000167   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000168   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: je 0x172
+Y86 CPU state:
+    PC: 0000000000000171   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000172   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jne 0x17c
+Y86 CPU state:
+    PC: 000000000000017c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jge 0x186
+Y86 CPU state:
+    PC: 0000000000000186   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jg 0x190
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 000000000000011f   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000129   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 000000000000012b   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jmp 0x154
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jle 0x15e
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jl 0x168
+Y86 CPU state:
+    PC: 0000000000000168   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: je 0x172
+Y86 CPU state:
+    PC: 0000000000000171   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000172   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jne 0x17c
+Y86 CPU state:
+    PC: 000000000000017c   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jge 0x186
+Y86 CPU state:
+    PC: 0000000000000185   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000186   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jg 0x190
+Y86 CPU state:
+    PC: 000000000000018f   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000134   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rax
+Y86 CPU state:
+    PC: 000000000000013e   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 0000000000000140   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jmp 0x154
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jle 0x15e
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jl 0x168
+Y86 CPU state:
+    PC: 0000000000000167   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000168   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: je 0x172
+Y86 CPU state:
+    PC: 0000000000000172   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jne 0x17c
+Y86 CPU state:
+    PC: 000000000000017b   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 000000000000017c   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jge 0x186
+Y86 CPU state:
+    PC: 0000000000000186   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: jg 0x190
+Y86 CPU state:
+    PC: 000000000000018f   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000149   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z1 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 44
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f0 01 00 00 00
+  0110  00 00 00 00 62 00 80 4a  01 00 00 00 00 00 00 30
+  0120  f0 ff ff ff ff ff ff ff  ff 62 00 80 4a 01 00 00
+  0130  00 00 00 00 30 f0 00 00  00 00 00 00 00 00 62 00
+  0140  80 4a 01 00 00 00 00 00  00 00 70 54 01 00 00 00
+  0150  00 00 00 10 71 5e 01 00  00 00 00 00 00 10 72 68
+  0160  01 00 00 00 00 00 00 10  73 72 01 00 00 00 00 00
+  0170  00 10 74 7c 01 00 00 00  00 00 00 10 75 86 01 00
+  0180  00 00 00 00 00 10 76 90  01 00 00 00 00 00 00 10
+  0190  90 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  49 01 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4085644== 
+==4085644== HEAP SUMMARY:
+==4085644==     in use at exit: 0 bytes in 0 blocks
+==4085644==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085644== 
+==4085644== All heap blocks were freed -- no leaks are possible
+==4085644== 
+==4085644== For lists of detected and suppressed errors, rerun with: -s
+==4085644== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_cmov_debug.txt b/p4-interp/tests/valgrind/A_cmov_debug.txt
new file mode 100644
index 0000000..6fbe5e2
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_cmov_debug.txt
@@ -0,0 +1,920 @@
+==4085626== Memcheck, a memory error detector
+==4085626== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085626== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085626== Command: ../y86 -E inputs/cmov.o
+==4085626== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 0000000000000116   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovle %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000160   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000016a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovl %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000016c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000176   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmove %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000178   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000182   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovne %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000184   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000018e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovge %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000019a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovg %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000019c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 000000000000011f   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000129   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 000000000000012b   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S1 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovle %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000160   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000016a   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovl %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000016c   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000176   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmove %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000178   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000182   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovne %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000184   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000018e   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovge %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000019a   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovg %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000019c   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000134   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rax
+Y86 CPU state:
+    PC: 000000000000013e   flags: Z0 S1 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rax, %rax
+Y86 CPU state:
+    PC: 0000000000000140   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x14a
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovle %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000160   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000016a   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovl %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000016c   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000176   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmove %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000178   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 0000000000000182   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovne %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000184   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000018e   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovge %rax, %rdx
+Y86 CPU state:
+    PC: 0000000000000190   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000001    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rdx
+Y86 CPU state:
+    PC: 000000000000019a   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: cmovg %rax, %rdx
+Y86 CPU state:
+    PC: 000000000000019c   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000149   flags: Z1 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z1 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 53
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f0 01 00 00 00
+  0110  00 00 00 00 62 00 80 4a  01 00 00 00 00 00 00 30
+  0120  f0 ff ff ff ff ff ff ff  ff 62 00 80 4a 01 00 00
+  0130  00 00 00 00 30 f0 00 00  00 00 00 00 00 00 62 00
+  0140  80 4a 01 00 00 00 00 00  00 00 30 f0 01 00 00 00
+  0150  00 00 00 00 30 f2 00 00  00 00 00 00 00 00 21 02
+  0160  30 f2 00 00 00 00 00 00  00 00 22 02 30 f2 00 00
+  0170  00 00 00 00 00 00 23 02  30 f2 00 00 00 00 00 00
+  0180  00 00 24 02 30 f2 00 00  00 00 00 00 00 00 25 02
+  0190  30 f2 00 00 00 00 00 00  00 00 26 02 90 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  49 01 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4085626== 
+==4085626== HEAP SUMMARY:
+==4085626==     in use at exit: 0 bytes in 0 blocks
+==4085626==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085626== 
+==4085626== All heap blocks were freed -- no leaks are possible
+==4085626== 
+==4085626== For lists of detected and suppressed errors, rerun with: -s
+==4085626== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_extra_params.txt b/p4-interp/tests/valgrind/A_extra_params.txt
new file mode 100644
index 0000000..d894284
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_extra_params.txt
@@ -0,0 +1,27 @@
+==4086493== Memcheck, a memory error detector
+==4086493== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086493== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086493== Command: ../y86 -e inputs/nop_hlt.o extra params
+==4086493== 
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+  -e      Execute program
+  -E      Execute program (trace mode)
+==4086493== 
+==4086493== HEAP SUMMARY:
+==4086493==     in use at exit: 0 bytes in 0 blocks
+==4086493==   total heap usage: 1 allocs, 1 frees, 8,192 bytes allocated
+==4086493== 
+==4086493== All heap blocks were freed -- no leaks are possible
+==4086493== 
+==4086493== For lists of detected and suppressed errors, rerun with: -s
+==4086493== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_iotrap_buf2_debug.txt b/p4-interp/tests/valgrind/A_iotrap_buf2_debug.txt
new file mode 100644
index 0000000..746f07f
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_iotrap_buf2_debug.txt
@@ -0,0 +1,416 @@
+==4086873== Memcheck, a memory error detector
+==4086873== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086873== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086873== Command: ../y86 -E inputs/iotrap_buf2.o
+==4086873== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x200, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000200    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000200    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000200    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 0000000000000116   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 0
+Y86 CPU state:
+    PC: 0000000000000117   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 0
+Y86 CPU state:
+    PC: 0000000000000118   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 0000000000000119   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+1234512345aaabcdefghY86 CPU state:
+    PC: 000000000000011a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000011b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000011c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000011d   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 11
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 02 00 00 00 00  00 00 c2 c2 30 f6 00 03
+  0110  00 00 00 00 00 00 c0 c0  c4 c5 c2 c4 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  39 30 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  61 62 63 64 65 66 67 68  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4086873== 
+==4086873== HEAP SUMMARY:
+==4086873==     in use at exit: 0 bytes in 0 blocks
+==4086873==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4086873== 
+==4086873== All heap blocks were freed -- no leaks are possible
+==4086873== 
+==4086873== For lists of detected and suppressed errors, rerun with: -s
+==4086873== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_iotrap_buf_debug.txt b/p4-interp/tests/valgrind/A_iotrap_buf_debug.txt
new file mode 100644
index 0000000..8150975
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_iotrap_buf_debug.txt
@@ -0,0 +1,344 @@
+==4086814== Memcheck, a memory error detector
+==4086814== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086814== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086814== Command: ../y86 -E inputs/iotrap_buf.o
+==4086814== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+abcdefghY86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000010e   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 5
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 03 00 00 00 00  00 00 c4 c5 c4 00 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  61 62 63 64 65 66 67 68  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4086814== 
+==4086814== HEAP SUMMARY:
+==4086814==     in use at exit: 0 bytes in 0 blocks
+==4086814==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4086814== 
+==4086814== All heap blocks were freed -- no leaks are possible
+==4086814== 
+==4086814== For lists of detected and suppressed errors, rerun with: -s
+==4086814== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_iotrap_char_debug.txt b/p4-interp/tests/valgrind/A_iotrap_char_debug.txt
new file mode 100644
index 0000000..8aff621
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_iotrap_char_debug.txt
@@ -0,0 +1,368 @@
+==4086630== Memcheck, a memory error detector
+==4086630== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086630== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086630== Command: ../y86 -E inputs/iotrap_char.o
+==4086630== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 0
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 0
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+YYY86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x308, %rdi
+Y86 CPU state:
+    PC: 0000000000000117   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 1
+Y86 CPU state:
+    PC: 0000000000000118   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000119   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 7
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 03 00 00 00 00  00 00 c0 c0 c5 30 f7 08
+  0110  03 00 00 00 00 00 00 c1  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  59 00 00 00 00 00 00 00  0a 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4086630== 
+==4086630== HEAP SUMMARY:
+==4086630==     in use at exit: 0 bytes in 0 blocks
+==4086630==   total heap usage: 4 allocs, 4 frees, 25,048 bytes allocated
+==4086630== 
+==4086630== All heap blocks were freed -- no leaks are possible
+==4086630== 
+==4086630== For lists of detected and suppressed errors, rerun with: -s
+==4086630== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_iotrap_dec_bad.txt b/p4-interp/tests/valgrind/A_iotrap_dec_bad.txt
new file mode 100644
index 0000000..81d5db9
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_iotrap_dec_bad.txt
@@ -0,0 +1,27 @@
+==4086718== Memcheck, a memory error detector
+==4086718== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086718== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086718== Command: ../y86 -e inputs/iotrap_dec.o
+==4086718== 
+Beginning execution at 0x0100
+256256I/O Error
+Y86 CPU state:
+    PC: 0000000000000118   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 6
+==4086718== 
+==4086718== HEAP SUMMARY:
+==4086718==     in use at exit: 0 bytes in 0 blocks
+==4086718==   total heap usage: 4 allocs, 4 frees, 25,048 bytes allocated
+==4086718== 
+==4086718== All heap blocks were freed -- no leaks are possible
+==4086718== 
+==4086718== For lists of detected and suppressed errors, rerun with: -s
+==4086718== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_iotrap_dec_debug.txt b/p4-interp/tests/valgrind/A_iotrap_dec_debug.txt
new file mode 100644
index 0000000..7aa2795
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_iotrap_dec_debug.txt
@@ -0,0 +1,357 @@
+==4086680== Memcheck, a memory error detector
+==4086680== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086680== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086680== Command: ../y86 -E inputs/iotrap_dec.o
+==4086680== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 2
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+256256Y86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x308, %rdi
+Y86 CPU state:
+    PC: 0000000000000117   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 3
+I/O Error
+Y86 CPU state:
+    PC: 0000000000000118   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000308
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 6
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 03 00 00 00 00  00 00 c2 c2 c5 30 f7 08
+  0110  03 00 00 00 00 00 00 c3  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 01 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4086680== 
+==4086680== HEAP SUMMARY:
+==4086680==     in use at exit: 0 bytes in 0 blocks
+==4086680==   total heap usage: 4 allocs, 4 frees, 25,048 bytes allocated
+==4086680== 
+==4086680== All heap blocks were freed -- no leaks are possible
+==4086680== 
+==4086680== For lists of detected and suppressed errors, rerun with: -s
+==4086680== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_iotrap_escaped_string.txt b/p4-interp/tests/valgrind/A_iotrap_escaped_string.txt
new file mode 100644
index 0000000..c780c54
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_iotrap_escaped_string.txt
@@ -0,0 +1,29 @@
+==4086796== Memcheck, a memory error detector
+==4086796== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086796== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086796== Command: ../y86 -e inputs/iotrap_str_esc.o
+==4086796== 
+Beginning execution at 0x0100
+hello!
+ab	c
+'str\ing'
+Y86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 4
+==4086796== 
+==4086796== HEAP SUMMARY:
+==4086796==     in use at exit: 0 bytes in 0 blocks
+==4086796==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4086796== 
+==4086796== All heap blocks were freed -- no leaks are possible
+==4086796== 
+==4086796== For lists of detected and suppressed errors, rerun with: -s
+==4086796== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_iotrap_str_debug.txt b/p4-interp/tests/valgrind/A_iotrap_str_debug.txt
new file mode 100644
index 0000000..9df45c5
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_iotrap_str_debug.txt
@@ -0,0 +1,344 @@
+==4086754== Memcheck, a memory error detector
+==4086754== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086754== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086754== Command: ../y86 -E inputs/iotrap_str.o
+==4086754== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x300, %rsi
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000010b   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 4
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: iotrap 5
+abcdefghabcdefghY86 CPU state:
+    PC: 000000000000010d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000010e   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000300    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 5
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f6 00 03 00 00 00 00  00 00 c4 c4 c5 00 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  61 62 63 64 65 66 67 68  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4086754== 
+==4086754== HEAP SUMMARY:
+==4086754==     in use at exit: 0 bytes in 0 blocks
+==4086754==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4086754== 
+==4086754== All heap blocks were freed -- no leaks are possible
+==4086754== 
+==4086754== For lists of detected and suppressed errors, rerun with: -s
+==4086754== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_missing_file.txt b/p4-interp/tests/valgrind/A_missing_file.txt
new file mode 100644
index 0000000..3663cd2
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_missing_file.txt
@@ -0,0 +1,27 @@
+==4086240== Memcheck, a memory error detector
+==4086240== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086240== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086240== Command: ../y86 -e
+==4086240== 
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+  -e      Execute program
+  -E      Execute program (trace mode)
+==4086240== 
+==4086240== HEAP SUMMARY:
+==4086240==     in use at exit: 0 bytes in 0 blocks
+==4086240==   total heap usage: 1 allocs, 1 frees, 8,192 bytes allocated
+==4086240== 
+==4086240== All heap blocks were freed -- no leaks are possible
+==4086240== 
+==4086240== For lists of detected and suppressed errors, rerun with: -s
+==4086240== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_movflags_debug.txt b/p4-interp/tests/valgrind/A_movflags_debug.txt
new file mode 100644
index 0000000..7dbd82c
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_movflags_debug.txt
@@ -0,0 +1,452 @@
+==4085893== Memcheck, a memory error detector
+==4085893== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085893== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085893== Command: ../y86 -E inputs/movflags.o
+==4085893== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x200, %rbx
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: rmmovq %rax, 0x0(%rbx)
+Y86 CPU state:
+    PC: 0000000000000128   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x0(%rbx), %rcx
+Y86 CPU state:
+    PC: 0000000000000132   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rax
+Y86 CPU state:
+    PC: 0000000000000134   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rdx
+Y86 CPU state:
+    PC: 0000000000000136   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000140   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x200, %rbx
+Y86 CPU state:
+    PC: 000000000000014a   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: rmmovq %rax, 0x0(%rbx)
+Y86 CPU state:
+    PC: 0000000000000154   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x0(%rbx), %rcx
+Y86 CPU state:
+    PC: 000000000000015e   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: ffffffffffffffff
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rax
+Y86 CPU state:
+    PC: 0000000000000160   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: ffffffffffffffff
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rdx
+Y86 CPU state:
+    PC: 0000000000000162   flags: Z0 S0 O0     AOK
+  %rax: ffffffffffffffff    %rcx: ffffffffffffffff
+  %rdx: ffffffffffffffff    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000163   flags: Z0 S0 O0     HLT
+  %rax: ffffffffffffffff    %rcx: ffffffffffffffff
+  %rdx: ffffffffffffffff    %rbx: 0000000000000200
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 14
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f0 00 00 00 00
+  0110  00 00 00 00 30 f3 00 02  00 00 00 00 00 00 40 03
+  0120  00 00 00 00 00 00 00 00  50 13 00 00 00 00 00 00
+  0130  00 00 a0 0f b0 2f 30 f0  ff ff ff ff ff ff ff ff
+  0140  30 f3 00 02 00 00 00 00  00 00 40 03 00 00 00 00
+  0150  00 00 00 00 50 13 00 00  00 00 00 00 00 00 a0 0f
+  0160  b0 2f 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  ff ff ff ff ff ff ff ff  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  ff ff ff ff ff ff ff ff
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4085893== 
+==4085893== HEAP SUMMARY:
+==4085893==     in use at exit: 0 bytes in 0 blocks
+==4085893==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085893== 
+==4085893== All heap blocks were freed -- no leaks are possible
+==4085893== 
+==4085893== For lists of detected and suppressed errors, rerun with: -s
+==4085893== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_opq_of_debug.txt b/p4-interp/tests/valgrind/A_opq_of_debug.txt
new file mode 100644
index 0000000..6a0e61b
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_opq_of_debug.txt
@@ -0,0 +1,416 @@
+==4085757== Memcheck, a memory error detector
+==4085757== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085757== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085757== Command: ../y86 -E inputs/opq_of.o
+==4085757== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rbx
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x7fffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: addq %rbx, %rax
+Y86 CPU state:
+    PC: 0000000000000116   flags: Z0 S1 O1     AOK
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x8000000000000000, %rax
+Y86 CPU state:
+    PC: 0000000000000120   flags: Z0 S1 O1     AOK
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: subq %rbx, %rax
+Y86 CPU state:
+    PC: 0000000000000122   flags: Z0 S0 O1     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000001
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rbx
+Y86 CPU state:
+    PC: 000000000000012c   flags: Z0 S0 O1     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x8000000000000000, %rax
+Y86 CPU state:
+    PC: 0000000000000136   flags: Z0 S0 O1     AOK
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: addq %rbx, %rax
+Y86 CPU state:
+    PC: 0000000000000138   flags: Z0 S0 O1     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x7fffffffffffffff, %rax
+Y86 CPU state:
+    PC: 0000000000000142   flags: Z0 S0 O1     AOK
+  %rax: 7fffffffffffffff    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: subq %rbx, %rax
+Y86 CPU state:
+    PC: 0000000000000144   flags: Z0 S1 O1     AOK
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000145   flags: Z0 S1 O1     HLT
+  %rax: 8000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: ffffffffffffffff
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 11
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f3 01 00 00 00 00 00  00 00 30 f0 ff ff ff ff
+  0110  ff ff ff 7f 60 30 30 f0  00 00 00 00 00 00 00 80
+  0120  61 30 30 f3 ff ff ff ff  ff ff ff ff 30 f0 00 00
+  0130  00 00 00 00 00 80 60 30  30 f0 ff ff ff ff ff ff
+  0140  ff 7f 61 30 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4085757== 
+==4085757== HEAP SUMMARY:
+==4085757==     in use at exit: 0 bytes in 0 blocks
+==4085757==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085757== 
+==4085757== All heap blocks were freed -- no leaks are possible
+==4085757== 
+==4085757== For lists of detected and suppressed errors, rerun with: -s
+==4085757== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_pushpop_rsp_debug.txt b/p4-interp/tests/valgrind/A_pushpop_rsp_debug.txt
new file mode 100644
index 0000000..f36cb0a
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_pushpop_rsp_debug.txt
@@ -0,0 +1,332 @@
+==4085960== Memcheck, a memory error detector
+==4085960== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085960== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085960== Command: ../y86 -E inputs/pushpop_rsp.o
+==4085960== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rsp
+Y86 CPU state:
+    PC: 000000000000010c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rax
+Y86 CPU state:
+    PC: 000000000000010e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000f00    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000010f   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000f00    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 4
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 a0 4f b0 0f 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 0f 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4085960== 
+==4085960== HEAP SUMMARY:
+==4085960==     in use at exit: 0 bytes in 0 blocks
+==4085960==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085960== 
+==4085960== All heap blocks were freed -- no leaks are possible
+==4085960== 
+==4085960== For lists of detected and suppressed errors, rerun with: -s
+==4085960== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_unaligned1.txt b/p4-interp/tests/valgrind/A_unaligned1.txt
new file mode 100644
index 0000000..24e9451
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_unaligned1.txt
@@ -0,0 +1,26 @@
+==4086559== Memcheck, a memory error detector
+==4086559== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086559== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086559== Command: ../y86 -e inputs/unaligned.o
+==4086559== 
+Beginning execution at 0x0118
+Y86 CPU state:
+    PC: 000000000000011a   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
+==4086559== 
+==4086559== HEAP SUMMARY:
+==4086559==     in use at exit: 0 bytes in 0 blocks
+==4086559==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4086559== 
+==4086559== All heap blocks were freed -- no leaks are possible
+==4086559== 
+==4086559== For lists of detected and suppressed errors, rerun with: -s
+==4086559== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/A_unaligned2.txt b/p4-interp/tests/valgrind/A_unaligned2.txt
new file mode 100644
index 0000000..c616674
--- /dev/null
+++ b/p4-interp/tests/valgrind/A_unaligned2.txt
@@ -0,0 +1,26 @@
+==4086609== Memcheck, a memory error detector
+==4086609== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4086609== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4086609== Command: ../y86 -e inputs/unaligned2.o
+==4086609== 
+Beginning execution at 0x0555
+Y86 CPU state:
+    PC: 0000000000000574   flags: Z0 S0 O0     HLT
+  %rax: 000000000000014d    %rcx: 000000000000006f
+  %rdx: 0000000000000000    %rbx: 00000000000000de
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 4
+==4086609== 
+==4086609== HEAP SUMMARY:
+==4086609==     in use at exit: 0 bytes in 0 blocks
+==4086609==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4086609== 
+==4086609== All heap blocks were freed -- no leaks are possible
+==4086609== 
+==4086609== For lists of detected and suppressed errors, rerun with: -s
+==4086609== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/B_func_debug.txt b/p4-interp/tests/valgrind/B_func_debug.txt
new file mode 100644
index 0000000..6172db4
--- /dev/null
+++ b/p4-interp/tests/valgrind/B_func_debug.txt
@@ -0,0 +1,356 @@
+==4085496== Memcheck, a memory error detector
+==4085496== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085496== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085496== Command: ../y86 -E inputs/func.o
+==4085496== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x114
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: call 0x11e
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef0    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 000000000000011d   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: ret
+Y86 CPU state:
+    PC: 0000000000000113   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 6
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 80 14 01 00 00 00
+  0110  00 00 00 00 80 1e 01 00  00 00 00 00 00 90 90 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  1d 01 00 00 00 00 00 00  13 01 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4085496== 
+==4085496== HEAP SUMMARY:
+==4085496==     in use at exit: 0 bytes in 0 blocks
+==4085496==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085496== 
+==4085496== All heap blocks were freed -- no leaks are possible
+==4085496== 
+==4085496== For lists of detected and suppressed errors, rerun with: -s
+==4085496== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/B_memreg.txt b/p4-interp/tests/valgrind/B_memreg.txt
new file mode 100644
index 0000000..3b4c888
--- /dev/null
+++ b/p4-interp/tests/valgrind/B_memreg.txt
@@ -0,0 +1,26 @@
+==4085370== Memcheck, a memory error detector
+==4085370== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085370== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085370== Command: ../y86 -e inputs/memreg.o
+==4085370== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000147   flags: Z0 S0 O0     HLT
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0123456789abcdef
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 8
+==4085370== 
+==4085370== HEAP SUMMARY:
+==4085370==     in use at exit: 0 bytes in 0 blocks
+==4085370==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085370== 
+==4085370== All heap blocks were freed -- no leaks are possible
+==4085370== 
+==4085370== For lists of detected and suppressed errors, rerun with: -s
+==4085370== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/B_memreg_debug.txt b/p4-interp/tests/valgrind/B_memreg_debug.txt
new file mode 100644
index 0000000..8dd568f
--- /dev/null
+++ b/p4-interp/tests/valgrind/B_memreg_debug.txt
@@ -0,0 +1,380 @@
+==4085388== Memcheck, a memory error detector
+==4085388== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085388== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085388== Command: ../y86 -E inputs/memreg.o
+==4085388== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xfedcba9876543210, %rax
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x200, %rbx
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: rmmovq %rax, 0x0(%rbx)
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x0(%rbx), %rcx
+Y86 CPU state:
+    PC: 0000000000000128   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0000000000000000    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x8(%rbx), %rdx
+Y86 CPU state:
+    PC: 0000000000000132   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: rmmovq %rdx, 0x210
+Y86 CPU state:
+    PC: 000000000000013c   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: mrmovq 0x210, %rdi
+Y86 CPU state:
+    PC: 0000000000000146   flags: Z0 S0 O0     AOK
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0123456789abcdef
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000147   flags: Z0 S0 O0     HLT
+  %rax: fedcba9876543210    %rcx: fedcba9876543210
+  %rdx: 0123456789abcdef    %rbx: 0000000000000200
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0123456789abcdef
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 8
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f0 10 32 54 76 98 ba  dc fe 30 f3 00 02 00 00
+  0110  00 00 00 00 40 03 00 00  00 00 00 00 00 00 50 13
+  0120  00 00 00 00 00 00 00 00  50 23 08 00 00 00 00 00
+  0130  00 00 40 2f 10 02 00 00  00 00 00 00 50 7f 10 02
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  10 32 54 76 98 ba dc fe  ef cd ab 89 67 45 23 01
+  0210  ef cd ab 89 67 45 23 01  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4085388== 
+==4085388== HEAP SUMMARY:
+==4085388==     in use at exit: 0 bytes in 0 blocks
+==4085388==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085388== 
+==4085388== All heap blocks were freed -- no leaks are possible
+==4085388== 
+==4085388== For lists of detected and suppressed errors, rerun with: -s
+==4085388== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/B_pushpop.txt b/p4-interp/tests/valgrind/B_pushpop.txt
new file mode 100644
index 0000000..9a43e60
--- /dev/null
+++ b/p4-interp/tests/valgrind/B_pushpop.txt
@@ -0,0 +1,26 @@
+==4085308== Memcheck, a memory error detector
+==4085308== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085308== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085308== Command: ../y86 -e inputs/pushpop.o
+==4085308== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000127   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0123456789abcdef
+  %rdx: 0000000000000001    %rbx: 0123456789abcdef
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 8
+==4085308== 
+==4085308== HEAP SUMMARY:
+==4085308==     in use at exit: 0 bytes in 0 blocks
+==4085308==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085308== 
+==4085308== All heap blocks were freed -- no leaks are possible
+==4085308== 
+==4085308== For lists of detected and suppressed errors, rerun with: -s
+==4085308== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/B_pushpop_debug.txt b/p4-interp/tests/valgrind/B_pushpop_debug.txt
new file mode 100644
index 0000000..89d9d06
--- /dev/null
+++ b/p4-interp/tests/valgrind/B_pushpop_debug.txt
@@ -0,0 +1,380 @@
+==4085323== Memcheck, a memory error detector
+==4085323== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085323== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085323== Command: ../y86 -E inputs/pushpop.o
+==4085323== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf00, %rsp
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x123456789abcdef, %rbx
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0123456789abcdef
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rax
+Y86 CPU state:
+    PC: 0000000000000120   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0123456789abcdef
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: pushq %rbx
+Y86 CPU state:
+    PC: 0000000000000122   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0123456789abcdef
+  %rsp: 0000000000000ef0    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rcx
+Y86 CPU state:
+    PC: 0000000000000124   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0123456789abcdef
+  %rdx: 0000000000000000    %rbx: 0123456789abcdef
+  %rsp: 0000000000000ef8    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: popq %rdx
+Y86 CPU state:
+    PC: 0000000000000126   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0123456789abcdef
+  %rdx: 0000000000000001    %rbx: 0123456789abcdef
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000127   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0123456789abcdef
+  %rdx: 0000000000000001    %rbx: 0123456789abcdef
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 8
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f4 00 0f 00 00 00 00  00 00 30 f0 01 00 00 00
+  0110  00 00 00 00 30 f3 ef cd  ab 89 67 45 23 01 a0 0f
+  0120  a0 3f b0 1f b0 2f 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  ef cd ab 89 67 45 23 01  01 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4085323== 
+==4085323== HEAP SUMMARY:
+==4085323==     in use at exit: 0 bytes in 0 blocks
+==4085323==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085323== 
+==4085323== All heap blocks were freed -- no leaks are possible
+==4085323== 
+==4085323== For lists of detected and suppressed errors, rerun with: -s
+==4085323== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/B_simple.txt b/p4-interp/tests/valgrind/B_simple.txt
new file mode 100644
index 0000000..f293744
--- /dev/null
+++ b/p4-interp/tests/valgrind/B_simple.txt
@@ -0,0 +1,26 @@
+==4085404== Memcheck, a memory error detector
+==4085404== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085404== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085404== Command: ../y86 -e inputs/simple.o
+==4085404== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000005    %rcx: 0000000000000003
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 7
+==4085404== 
+==4085404== HEAP SUMMARY:
+==4085404==     in use at exit: 0 bytes in 0 blocks
+==4085404==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085404== 
+==4085404== All heap blocks were freed -- no leaks are possible
+==4085404== 
+==4085404== For lists of detected and suppressed errors, rerun with: -s
+==4085404== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/B_simple_entry.txt b/p4-interp/tests/valgrind/B_simple_entry.txt
new file mode 100644
index 0000000..344e703
--- /dev/null
+++ b/p4-interp/tests/valgrind/B_simple_entry.txt
@@ -0,0 +1,26 @@
+==4085426== Memcheck, a memory error detector
+==4085426== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085426== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085426== Command: ../y86 -e inputs/simple_entry.o
+==4085426== 
+Beginning execution at 0x0250
+Y86 CPU state:
+    PC: 0000000000000264   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000005    %rcx: 0000000000000003
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000f00    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 7
+==4085426== 
+==4085426== HEAP SUMMARY:
+==4085426==     in use at exit: 0 bytes in 0 blocks
+==4085426==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085426== 
+==4085426== All heap blocks were freed -- no leaks are possible
+==4085426== 
+==4085426== For lists of detected and suppressed errors, rerun with: -s
+==4085426== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/C_irmovq.txt b/p4-interp/tests/valgrind/C_irmovq.txt
new file mode 100644
index 0000000..e752d50
--- /dev/null
+++ b/p4-interp/tests/valgrind/C_irmovq.txt
@@ -0,0 +1,26 @@
+==4085137== Memcheck, a memory error detector
+==4085137== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085137== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085137== Command: ../y86 -e inputs/irmovq.o
+==4085137== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000151   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 00000000deadbeef    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 9
+==4085137== 
+==4085137== HEAP SUMMARY:
+==4085137==     in use at exit: 0 bytes in 0 blocks
+==4085137==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085137== 
+==4085137== All heap blocks were freed -- no leaks are possible
+==4085137== 
+==4085137== For lists of detected and suppressed errors, rerun with: -s
+==4085137== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/C_irmovq_debug.txt b/p4-interp/tests/valgrind/C_irmovq_debug.txt
new file mode 100644
index 0000000..d6b3a89
--- /dev/null
+++ b/p4-interp/tests/valgrind/C_irmovq_debug.txt
@@ -0,0 +1,392 @@
+==4085214== Memcheck, a memory error detector
+==4085214== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085214== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085214== Command: ../y86 -E inputs/irmovq.o
+==4085214== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1, %rax
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xf, %rbx
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1234, %rcx
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 0000000000000000    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x1122334455667788, %rdx
+Y86 CPU state:
+    PC: 0000000000000128   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x8877665544332211, %rsi
+Y86 CPU state:
+    PC: 0000000000000132   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xffffffffffffffff, %rdi
+Y86 CPU state:
+    PC: 000000000000013c   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x0, %rbp
+Y86 CPU state:
+    PC: 0000000000000146   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0xdeadbeef, %rsp
+Y86 CPU state:
+    PC: 0000000000000150   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 00000000deadbeef    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000151   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000001    %rcx: 0000000000001234
+  %rdx: 1122334455667788    %rbx: 000000000000000f
+  %rsp: 00000000deadbeef    %rbp: 0000000000000000
+  %rsi: 8877665544332211    %rdi: ffffffffffffffff
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 9
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f0 01 00 00 00 00 00  00 00 30 f3 0f 00 00 00
+  0110  00 00 00 00 30 f1 34 12  00 00 00 00 00 00 30 f2
+  0120  88 77 66 55 44 33 22 11  30 f6 11 22 33 44 55 66
+  0130  77 88 30 f7 ff ff ff ff  ff ff ff ff 30 f5 00 00
+  0140  00 00 00 00 00 00 30 f4  ef be ad de 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4085214== 
+==4085214== HEAP SUMMARY:
+==4085214==     in use at exit: 0 bytes in 0 blocks
+==4085214==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085214== 
+==4085214== All heap blocks were freed -- no leaks are possible
+==4085214== 
+==4085214== For lists of detected and suppressed errors, rerun with: -s
+==4085214== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/C_opq.txt b/p4-interp/tests/valgrind/C_opq.txt
new file mode 100644
index 0000000..a578c86
--- /dev/null
+++ b/p4-interp/tests/valgrind/C_opq.txt
@@ -0,0 +1,26 @@
+==4085226== Memcheck, a memory error detector
+==4085226== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085226== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085226== Command: ../y86 -e inputs/opq.o
+==4085226== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 000000000000013b   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000008    %rcx: 0000000000000001
+  %rdx: 0000000000000006    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 10
+==4085226== 
+==4085226== HEAP SUMMARY:
+==4085226==     in use at exit: 0 bytes in 0 blocks
+==4085226==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085226== 
+==4085226== All heap blocks were freed -- no leaks are possible
+==4085226== 
+==4085226== For lists of detected and suppressed errors, rerun with: -s
+==4085226== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/C_opq_debug.txt b/p4-interp/tests/valgrind/C_opq_debug.txt
new file mode 100644
index 0000000..2e6834c
--- /dev/null
+++ b/p4-interp/tests/valgrind/C_opq_debug.txt
@@ -0,0 +1,404 @@
+==4085255== Memcheck, a memory error detector
+==4085255== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085255== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085255== Command: ../y86 -E inputs/opq.o
+==4085255== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x5, %rax
+Y86 CPU state:
+    PC: 000000000000010a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x5, %rbx
+Y86 CPU state:
+    PC: 0000000000000114   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x5, %rcx
+Y86 CPU state:
+    PC: 000000000000011e   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000005
+  %rdx: 0000000000000000    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x5, %rdx
+Y86 CPU state:
+    PC: 0000000000000128   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000005
+  %rdx: 0000000000000005    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: irmovq 0x3, %rdi
+Y86 CPU state:
+    PC: 0000000000000132   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000005    %rcx: 0000000000000005
+  %rdx: 0000000000000005    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: addq %rdi, %rax
+Y86 CPU state:
+    PC: 0000000000000134   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000008    %rcx: 0000000000000005
+  %rdx: 0000000000000005    %rbx: 0000000000000005
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: subq %rdi, %rbx
+Y86 CPU state:
+    PC: 0000000000000136   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000008    %rcx: 0000000000000005
+  %rdx: 0000000000000005    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: andq %rdi, %rcx
+Y86 CPU state:
+    PC: 0000000000000138   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000008    %rcx: 0000000000000001
+  %rdx: 0000000000000005    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: xorq %rdi, %rdx
+Y86 CPU state:
+    PC: 000000000000013a   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000008    %rcx: 0000000000000001
+  %rdx: 0000000000000006    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 000000000000013b   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000008    %rcx: 0000000000000001
+  %rdx: 0000000000000006    %rbx: 0000000000000002
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000003
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 10
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  30 f0 05 00 00 00 00 00  00 00 30 f3 05 00 00 00
+  0110  00 00 00 00 30 f1 05 00  00 00 00 00 00 00 30 f2
+  0120  05 00 00 00 00 00 00 00  30 f7 03 00 00 00 00 00
+  0130  00 00 60 70 61 73 62 71  63 72 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4085255== 
+==4085255== HEAP SUMMARY:
+==4085255==     in use at exit: 0 bytes in 0 blocks
+==4085255==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085255== 
+==4085255== All heap blocks were freed -- no leaks are possible
+==4085255== 
+==4085255== For lists of detected and suppressed errors, rerun with: -s
+==4085255== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/D_help.txt b/p4-interp/tests/valgrind/D_help.txt
new file mode 100644
index 0000000..e74a1a4
--- /dev/null
+++ b/p4-interp/tests/valgrind/D_help.txt
@@ -0,0 +1,27 @@
+==4085068== Memcheck, a memory error detector
+==4085068== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085068== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085068== Command: ../y86 -h
+==4085068== 
+Usage: ../y86 <option(s)> mini-elf-file
+ Options are:
+  -h      Display usage
+  -H      Show the Mini-ELF header
+  -a      Show all with brief memory
+  -f      Show all with full memory
+  -s      Show the program headers
+  -m      Show the memory contents (brief)
+  -M      Show the memory contents (full)
+  -d      Disassemble code contents
+  -D      Disassemble data contents
+  -e      Execute program
+  -E      Execute program (trace mode)
+==4085068== 
+==4085068== HEAP SUMMARY:
+==4085068==     in use at exit: 0 bytes in 0 blocks
+==4085068==   total heap usage: 1 allocs, 1 frees, 8,192 bytes allocated
+==4085068== 
+==4085068== All heap blocks were freed -- no leaks are possible
+==4085068== 
+==4085068== For lists of detected and suppressed errors, rerun with: -s
+==4085068== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/D_nop_hlt.txt b/p4-interp/tests/valgrind/D_nop_hlt.txt
new file mode 100644
index 0000000..60e2029
--- /dev/null
+++ b/p4-interp/tests/valgrind/D_nop_hlt.txt
@@ -0,0 +1,26 @@
+==4085082== Memcheck, a memory error detector
+==4085082== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085082== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085082== Command: ../y86 -e inputs/nop_hlt.o
+==4085082== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000102   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
+==4085082== 
+==4085082== HEAP SUMMARY:
+==4085082==     in use at exit: 0 bytes in 0 blocks
+==4085082==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085082== 
+==4085082== All heap blocks were freed -- no leaks are possible
+==4085082== 
+==4085082== For lists of detected and suppressed errors, rerun with: -s
+==4085082== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/tests/valgrind/D_nop_hlt_debug.txt b/p4-interp/tests/valgrind/D_nop_hlt_debug.txt
new file mode 100644
index 0000000..0fa4c4f
--- /dev/null
+++ b/p4-interp/tests/valgrind/D_nop_hlt_debug.txt
@@ -0,0 +1,308 @@
+==4085109== Memcheck, a memory error detector
+==4085109== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==4085109== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
+==4085109== Command: ../y86 -E inputs/nop_hlt.o
+==4085109== 
+Beginning execution at 0x0100
+Y86 CPU state:
+    PC: 0000000000000100   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: nop
+Y86 CPU state:
+    PC: 0000000000000101   flags: Z0 S0 O0     AOK
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+
+Executing: halt
+Y86 CPU state:
+    PC: 0000000000000102   flags: Z0 S0 O0     HLT
+  %rax: 0000000000000000    %rcx: 0000000000000000
+  %rdx: 0000000000000000    %rbx: 0000000000000000
+  %rsp: 0000000000000000    %rbp: 0000000000000000
+  %rsi: 0000000000000000    %rdi: 0000000000000000
+   %r8: 0000000000000000     %r9: 0000000000000000
+  %r10: 0000000000000000    %r11: 0000000000000000
+  %r12: 0000000000000000    %r13: 0000000000000000
+  %r14: 0000000000000000
+Total execution count: 2
+
+Contents of memory from 0000 to 1000:
+  0000  70 00 01 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  00f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0100  10 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0120  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0130  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0160  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0170  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0190  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  01f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0200  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0220  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0240  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0250  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0270  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0280  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0290  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  02f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0300  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0310  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0320  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0340  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0350  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0360  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0370  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0390  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  03f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0400  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0450  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0460  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0470  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0480  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0490  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  04f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0500  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0530  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0540  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0550  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0570  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0580  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0590  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  05f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0600  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0610  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0630  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0640  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0650  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0660  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0670  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0680  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0690  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  06f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0700  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0710  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0730  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0740  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0750  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0760  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0770  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0780  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0790  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  07f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0800  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0820  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0830  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0840  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0850  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0860  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0870  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0880  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0890  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  08f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0900  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0910  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0920  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0930  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0940  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0950  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0960  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0970  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0980  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0990  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  09f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0a90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0aa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ab0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ac0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ad0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ae0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0af0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0b90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ba0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0be0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0bf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0c90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ca0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ce0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0cf0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0d90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0da0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0db0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0dd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0de0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0df0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0e90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ea0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0eb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ec0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ed0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ee0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ef0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f10  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f20  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f30  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f40  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f50  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f60  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f70  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f80  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0f90  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fa0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fb0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fc0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0fe0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+  0ff0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
+==4085109== 
+==4085109== HEAP SUMMARY:
+==4085109==     in use at exit: 0 bytes in 0 blocks
+==4085109==   total heap usage: 3 allocs, 3 frees, 16,856 bytes allocated
+==4085109== 
+==4085109== All heap blocks were freed -- no leaks are possible
+==4085109== 
+==4085109== For lists of detected and suppressed errors, rerun with: -s
+==4085109== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/p4-interp/y86 b/p4-interp/y86
new file mode 100644
index 0000000..1a431d6
Binary files /dev/null and b/p4-interp/y86 differ
diff --git a/p4-interp/y86.h b/p4-interp/y86.h
new file mode 100644
index 0000000..32c2464
--- /dev/null
+++ b/p4-interp/y86.h
@@ -0,0 +1,97 @@
+#ifndef __CS261_Y86__
+#define __CS261_Y86__
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#define VADDRBITS 12
+#define MEMSIZE (1 << VADDRBITS)
+#define NUMREGS 15
+
+/* type declarations */
+typedef uint8_t  byte_t;        // byte
+typedef uint64_t y86_reg_t;     // register
+typedef uint64_t address_t;     // address
+typedef bool     flag_t;        // CPU flag
+
+/* possible CPU statuses */
+typedef enum { AOK = 1, HLT, ADR, INS } y86_stat_t;
+
+/* y86 CPU data storage structure */
+typedef struct y86 {
+
+    y86_reg_t reg[NUMREGS];     // 64-bit general-purpose registers
+
+    flag_t zf;                  // zero flag
+    flag_t sf;                  // negative flag
+    flag_t of;                  // overflow flag
+
+    y86_reg_t pc;               // program counter
+
+    y86_stat_t stat;            // program status
+
+} y86_t;
+
+/* These enums are specified to match the order of the numbers for all Y86
+   instructions and operands. As such, they can be used as constants throughout
+   the code. */
+typedef enum {
+    HALT = 0, NOP, CMOV, IRMOVQ, RMMOVQ, MRMOVQ, OPQ, JUMP, CALL, RET, PUSHQ,
+    POPQ, IOTRAP, INVALID
+} y86_icode_t;
+
+typedef enum {
+    RRMOVQ = 0, CMOVLE, CMOVL, CMOVE, CMOVNE, CMOVGE, CMOVG, BADCMOV
+} y86_cmov_t;
+
+typedef enum {
+    ADD = 0, SUB, AND, XOR, BADOP
+} y86_op_t;
+
+typedef enum {
+    JMP = 0, JLE, JL, JE, JNE, JGE, JG, BADJUMP
+} y86_jump_t;
+
+typedef enum {
+    CHAROUT = 0, CHARIN, DECOUT, DECIN, STROUT, FLUSH, BADTRAP
+} y86_iotrap_t;
+
+typedef enum {
+    RAX = 0, RCX, RDX, RBX, RSP, RBP, RSI, RDI,
+    R8, R9, R10, R11, R12, R13, R14, NOREG
+} y86_regnum_t;
+
+/* Instruction storage structure; use the constants defined in enums above.
+   Comments reflect correlated information from y86 ISA sheet. See the sheet
+   for more details. */
+typedef struct y86_inst {
+
+    // opcode (first byte)
+
+    y86_icode_t icode;     // high-order 4 bits of opcode (instruction code)
+    union {
+        int b;             // low-order 4 bits of opcode (instruction function)
+        y86_cmov_t cmov;        //   (cmovXX only)
+        y86_op_t op;            //   (OPq only)
+        y86_jump_t jump;        //   (jXX only)
+        y86_iotrap_t trap;      //   (iotrap only)
+    } ifun;
+
+    // registers (second byte, if present based on icode)
+
+    y86_regnum_t ra;            // rA           (high-order 4 bits)
+    y86_regnum_t rb;            // rB           (low-order 4 bits)
+
+    // valC (eight bytes, if present, starting at either second or third byte)
+
+    union {
+        address_t dest;         // Dest         (jXX and call only)
+        int64_t v;              // V            (irmovq only)
+        int64_t d;              // D            (rmmovq and mrmovq only)
+    } valC;
+
+    address_t valP;             // valP         (address of next instruction)
+
+} y86_inst_t;
+
+#endif