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Eclypsed
2025-10-06 00:14:04 -04:00
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p3-disas/tests/public.c Normal file
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#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);
}