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Add test cases for 16-bit ADC and SBC.

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This commit is contained in:
Radosław Kujawa 2017-02-02 21:16:31 +01:00
parent 1f8db85688
commit a72a2c0872
3 changed files with 88 additions and 0 deletions
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46
test/test_emulation.c
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@ -1036,9 +1036,54 @@ ATF_TC_BODY(emul_sbc, tc)
}
ATF_TC_WITHOUT_HEAD(emul_adc_16bit);
ATF_TC_BODY(emul_adc_16bit, tc)
{
rk65c02emu_t e;
bus_t b;
b = bus_init();
e = rk65c02_init(&b);
bus_write_1(&b, 0x62, 0x55);
bus_write_1(&b, 0x63, 0xAA);
bus_write_1(&b, 0x64, 0xAA);
bus_write_1(&b, 0x65, 0x55);
ATF_REQUIRE(rom_start(&e, "test_emulation_adc_16bit.rom", tc));
ATF_CHECK(bus_read_1(&b, 0x66) == 0xFF);
ATF_CHECK(bus_read_1(&b, 0x67) == 0xFF);
rk65c02_dump_regs(&e);
}
ATF_TC_WITHOUT_HEAD(emul_sbc_16bit);
ATF_TC_BODY(emul_sbc_16bit, tc)
{
rk65c02emu_t e;
bus_t b;
b = bus_init();
e = rk65c02_init(&b);
bus_write_1(&b, 0x62, 0xFF);
bus_write_1(&b, 0x63, 0xFF);
bus_write_1(&b, 0x64, 0xAA);
bus_write_1(&b, 0x65, 0x55);
ATF_REQUIRE(rom_start(&e, "test_emulation_sbc_16bit.rom", tc));
printf("%x %x\n", bus_read_1(&b, 0x66), bus_read_1(&b, 0x67)) ;
ATF_CHECK(bus_read_1(&b, 0x66) == 0x55);
ATF_CHECK(bus_read_1(&b, 0x67) == 0xAA);
rk65c02_dump_regs(&e);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, emul_and);
ATF_TP_ADD_TC(tp, emul_adc_16bit);
ATF_TP_ADD_TC(tp, emul_bit);
ATF_TP_ADD_TC(tp, emul_branch);
ATF_TP_ADD_TC(tp, emul_cmp);
@ -1063,6 +1108,7 @@ ATF_TP_ADD_TCS(tp)
ATF_TP_ADD_TC(tp, emul_txa_tya_tax_tay);
ATF_TP_ADD_TC(tp, emul_sta);
ATF_TP_ADD_TC(tp, emul_sbc);
ATF_TP_ADD_TC(tp, emul_sbc_16bit);
ATF_TP_ADD_TC(tp, emul_sign_overflow);

21
test/test_emulation_adc_16bit.s Normal file
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@ -0,0 +1,21 @@
; 16-bit addition simple example by FMan/Tropyx
; modified by rkujawa
.org 0xC000
.set num1lo, 0x62
.set num1hi, 0x63
.set num2lo, 0x64
.set num2hi, 0x65
.set reslo, 0x66
.set reshi, 0x67
; adds numbers 1 and 2, writes result to separate location
add: clc ; clear carry
lda num1lo
adc num2lo
sta reslo ; store sum of LSBs
lda num1hi
adc num2hi ; add the MSBs using carry from
sta reshi ; the previous calculation
stp

21
test/test_emulation_sbc_16bit.s Normal file
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@ -0,0 +1,21 @@
; 16-bit subtraction simple example by FMan/Tropyx
; modified by rkujawa
.org 0xC000
.set num1lo, 0x62
.set num1hi, 0x63
.set num2lo, 0x64
.set num2hi, 0x65
.set reslo, 0x66
.set reshi, 0x67
; subtracts number 2 from number 1 and writes result out
sub: sec ; set carry for borrow purpose
lda num1lo
sbc num2lo ; perform subtraction on the LSBs
sta reslo
lda num1hi ; do the same for the MSBs, with carry
sbc num2hi ; set according to the previous result
sta reshi
stp