END_TEST
START_TEST (test_cpu_xor)
{
cpu_t cpu;
cpu.A = 0x55;
cpu_set_z(&cpu, true);
cpu_set_n(&cpu, true);
cpu_set_c(&cpu, true);
cpu_set_h(&cpu, true);
cpu_xor(&cpu, 0xAA);
fail_unless(cpu.A == 0xFF);
fail_unless(!cpu_get_z(&cpu));
fail_unless(!cpu_get_n(&cpu));
fail_unless(!cpu_get_c(&cpu));
fail_unless(!cpu_get_h(&cpu));
cpu_xor(&cpu, 0xFF);
fail_unless(cpu.A == 0);
fail_unless(cpu_get_z(&cpu));
}
void xor_test(void)
{
cpu_state_t state;
int *test;
int tests[][7] =
{
{0xff, 0xff, 0x00, 1, 0, 0, 0},
{0xff, 0x0f, 0xf0, 0, 0, 0, 0},
{0xff, 0x8a, 0x75, 0, 0, 0, 0},
};
for(uint32_t i = 0; i < sizeof(tests) / sizeof(*tests); i++)
{
test = tests[i];
cpu_set_half_carry(&state, rand() % 2);
cpu_set_subtract(&state, rand() % 2);
cpu_set_carry(&state, rand() % 2);
state.a = test[0];
cpu_xor(&state, test[1]);
if(state.a == test[2] &&
cpu_zero(&state) == test[3] &&
cpu_half_carry(&state) == test[4] &&
cpu_subtract(&state) == test[5] &&
cpu_carry(&state) == test[6])
{
printf("Tests passed.\n");
}
else
{
printf("Tests failed.\n");
printf("%d %d %d %d\n", (int) cpu_zero(&state),
(int) cpu_half_carry(&state),
(int) cpu_subtract(&state),
(int) cpu_carry(&state));
}
}
}
