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Fixed mapper 16 IRQ logic for submapper 4

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oncemailtime 2024-01-29 12:44:08 -05:00 committed by GitHub
parent 4d4ef482a5
commit 4b63fd9755
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GPG Key ID: B5690EEEBB952194
1 changed files with 5 additions and 5 deletions
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10
Core/BandaiFcg.h
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@ -65,7 +65,7 @@ protected:
//"INES Mapper 016 submapper 5: LZ93D50 ASIC and no or 256-byte serial EEPROM, banked CHR-ROM"
//Add a 256 byte serial EEPROM (24C02)
if(!IsNes20() || (_romInfo.SubMapperID == 5 && _romInfo.NesHeader.GetSaveRamSize() == 256)) {
if(_romInfo.SubMapperID == 0 || (_romInfo.SubMapperID == 5 && _romInfo.NesHeader.GetSaveRamSize() == 256)) {
//Connect a 256-byte EEPROM for iNES roms, and when submapper 5 + 256 bytes of save ram in header
_standardEeprom.reset(new Eeprom24C02(_console));
}
@ -197,7 +197,7 @@ protected:
_irqEnabled = (value & 0x01) == 0x01;
//Wiki claims there is no reload value, however this seems to be the only way to make Famicom Jump II - Saikyou no 7 Nin work properly
if(_romInfo.MapperID != 16 || !IsNes20() || _romInfo.SubMapperID == 5) {
if(_romInfo.MapperID != 16 || _romInfo.SubMapperID != 4) {
//"On the LZ93D50 (Submapper 5), writing to this register also copies the latch to the actual counter."
_irqCounter = _irqReload;
}
@ -206,7 +206,7 @@ protected:
break;
case 0x0B:
if(_romInfo.MapperID != 16 || !IsNes20() || _romInfo.SubMapperID != 4) {
if(_romInfo.MapperID != 16 || _romInfo.SubMapperID != 4) {
//"On the LZ93D50 (Submapper 5), these registers instead modify a latch that will only be copied to the actual counter when register $800A is written to."
_irqReload = (_irqReload & 0xFF00) | value;
} else {
@ -216,10 +216,10 @@ protected:
break;
case 0x0C:
if(_romInfo.MapperID != 16 || !IsNes20() || _romInfo.SubMapperID != 4) {
if(_romInfo.MapperID != 16 || _romInfo.SubMapperID != 4) {
_irqReload = (_irqReload & 0xFF) | (value << 8);
} else {
_irqCounter = (_irqCounter & 0xFF00) | value;
_irqCounter = (_irqCounter & 0xFF) | (value << 8);
}
break;