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added test for rest of branch instructions

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jborza 2019-04-27 12:53:39 +02:00
parent 2ddcf62212
commit ec702335fa
1 changed files with 34 additions and 1 deletions
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35
test6502.c
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@ -2285,6 +2285,39 @@ void test_BEQ_skip() {
assert_pc(&state, 0x04);
}
void test_branch(byte opcode, byte n, byte v, byte z, byte c, word expected_pc){
State6502 state = create_blank_state();
state.flags.n = n;
state.flags.v = n;
state.flags.z = z;
state.flags.c = c;
char program[] = { BEQ_REL, 0xFE };
memcpy(state.memory, program, sizeof(program));
//act
test_step(&state);
//assert
assert_pc(&state, expected_pc);
}
void test_branching_multiple() {
test_branch(BEQ_REL, /*N*/ 0, /*V*/ 0, /*Z*/ 0, /*C*/ 0, /*EXP_PC*/0x02);
test_branch(BEQ_REL, /*N*/ 0, /*V*/ 0, /*Z*/ 1, /*C*/ 0, /*EXP_PC*/0x00);
test_branch(BNE_REL, /*N*/ 0, /*V*/ 0, /*Z*/ 0, /*C*/ 0, /*EXP_PC*/0x00);
test_branch(BNE_REL, /*N*/ 0, /*V*/ 0, /*Z*/ 1, /*C*/ 0, /*EXP_PC*/0x02);
test_branch(BCC_REL, /*N*/ 0, /*V*/ 0, /*Z*/ 0, /*C*/ 0, /*EXP_PC*/0x00);
test_branch(BCC_REL, /*N*/ 0, /*V*/ 0, /*Z*/ 0, /*C*/ 1, /*EXP_PC*/0x02);
test_branch(BCS_REL, /*N*/ 0, /*V*/ 0, /*Z*/ 0, /*C*/ 0, /*EXP_PC*/0x00);
test_branch(BCS_REL, /*N*/ 0, /*V*/ 0, /*Z*/ 0, /*C*/ 1, /*EXP_PC*/0x02);
test_branch(BMI_REL, /*N*/ 1, /*V*/ 0, /*Z*/ 0, /*C*/ 0, /*EXP_PC*/0x00);
test_branch(BMI_REL, /*N*/ 0, /*V*/ 0, /*Z*/ 0, /*C*/ 0, /*EXP_PC*/0x02);
test_branch(BPL_REL, /*N*/ 0, /*V*/ 0, /*Z*/ 0, /*C*/ 0, /*EXP_PC*/0x00);
test_branch(BPL_REL, /*N*/ 1, /*V*/ 0, /*Z*/ 0, /*C*/ 0, /*EXP_PC*/0x02);
test_branch(BVC_REL, /*N*/ 0, /*V*/ 0, /*Z*/ 0, /*C*/ 0, /*EXP_PC*/0x00);
test_branch(BVC_REL, /*N*/ 0, /*V*/ 1, /*Z*/ 0, /*C*/ 0, /*EXP_PC*/0x02);
test_branch(BVS_REL, /*N*/ 0, /*V*/ 1, /*Z*/ 0, /*C*/ 0, /*EXP_PC*/0x00);
test_branch(BVS_REL, /*N*/ 0, /*V*/ 0, /*Z*/ 0, /*C*/ 0, /*EXP_PC*/0x02);
}
/////////////////////
typedef void fp();
@ -2311,7 +2344,7 @@ fp* tests_adc[] = { test_ADC_IMM_multiple };
fp* tests_bit[] = { test_BIT_multiple };
fp* tests_jsr_rts[] = { test_JSR, test_JSR_RTS };
fp* tests_brk[] = { test_BRK };
fp* tests_branch[] = { test_BEQ, test_BEQ_skip };
fp* tests_branch[] = { test_BEQ, test_BEQ_skip, test_branching_multiple };
#define RUN(suite) run_suite(suite, sizeof(suite)/sizeof(fp*))