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added a test for a wraparound at indirect X addressing

This commit is contained in:
jborza 2019-05-07 20:24:02 +02:00
parent 6dec18dada
commit d0e5449ae1
1 changed files with 32 additions and 6 deletions
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38
test6502.c
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@ -39,7 +39,7 @@ void test_LDA_IMM_zero() {
State6502 state = create_blank_state();
//arrange
char program[] = { LDA_IMM, 0x00 };
char program[] = { LDA_IMM, 0x00 };
memcpy(state.memory, program, sizeof(program));
//act
@ -191,6 +191,31 @@ void test_LDA_INDX() {
test_cleanup(&state);
}
void test_LDA_INDX_wraparound() {
//initialize
State6502 state = create_blank_state();
//arrange
char program[] = { LDA_INDX, 0xFF }; //LDA ($FF, x)
memcpy(state.memory + 0x200, program, sizeof(program));
//$FF+0 -> $FF
//value at $FF is $00, continuing at $00 with 04 -> $0400
state.memory[0x00FF] = 0x00;
state.memory[0x0000] = 0x04;
state.memory[0x0100] = 0x33; //fake unwanted value
state.memory[0x0400] = 0xEE; //correct final value
state.pc = 0x200;
//act
test_step(&state);
//assert
assertA(&state, 0xEE);
//cleanup
test_cleanup(&state);
}
void test_LDA_INDY() {
//initialize
State6502 state = create_blank_state();
@ -1830,7 +1855,7 @@ void test_TXS_Z() {
state.flags.z = 1;
state.flags.n = 1;
state.x = 0x00;
char program[] = { TXS };
char program[] = { TXS };
memcpy(state.memory, program, sizeof(program));
test_step(&state);
@ -2327,7 +2352,7 @@ void test_BRK() {
//BEQ, BCC, ...
void test_branch(byte opcode, byte n, byte v, byte z, byte c, word expected_pc){
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 = v;
@ -2400,14 +2425,14 @@ void test_ASL_ACC(byte a, byte expected_a, byte expected_c) {
//arrange
char program[] = { ASL_ACC };
memcpy(state.memory, program, sizeof(program));
//act
test_step(&state);
//assert
assertA(&state, expected_a);
assert_flag_c(&state, expected_c);
//cleanup
test_cleanup(&state);
}
@ -2469,7 +2494,7 @@ void test_ror_multiple() {
/////////////////////
typedef void fp();
fp* tests_lda[] = { test_LDA_IMM, test_LDA_IMM_zero, test_LDA_ZP, test_LDA_ZPX, test_LDA_ZPX_wraparound, test_LDA_ABS, test_LDA_ABSX, test_LDA_ABSY, test_LDA_INDX, test_LDA_INDY };
fp* tests_lda[] = { test_LDA_IMM, test_LDA_IMM_zero, test_LDA_ZP, test_LDA_ZPX, test_LDA_ZPX_wraparound, test_LDA_ABS, test_LDA_ABSX, test_LDA_ABSY, test_LDA_INDX, test_LDA_INDY, test_LDA_INDX_wraparound };
fp* tests_ora[] = { test_ORA_IMM, test_ORA_ZP, test_ORA_ZPX, test_ORA_ABS, test_ORA_ABSX, test_ORA_ABSY, test_ORA_INDX, test_ORA_INDY, test_ORA_IMM_Z };
fp* tests_and[] = { test_AND_IMM, test_AND_ZP, test_AND_ZPX, test_AND_ABS, test_AND_ABSX, test_AND_ABSY, test_AND_INDX, test_AND_INDY, test_AND_IMM_Z };
fp* tests_ldx[] = { test_LDX_IMM, test_LDX_IMM_zero, test_LDX_ZP, test_LDX_ZPY, test_LDX_ABS, test_LDX_ABSY };
@ -2508,6 +2533,7 @@ void run_suite(fp * *suite, int size) {
}
void run_tests() {
test_LDA_INDX_wraparound();
RUN(tests_ror);
RUN(tests_asl);
RUN(tests_rti);