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Mapper 114: Fixed crash in Lion King (Unl)

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This commit is contained in:
Sour 2018-08-19 20:42:10 -04:00
parent f25e6f5532
commit 8b3ddfa20d
1 changed files with 34 additions and 37 deletions
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47
Core/MMC3_114.h
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@ -28,36 +28,29 @@ protected:
virtual void UpdatePrgMapping() override
{
if(_exRegs[0] & 0x80) {
SelectPrgPage2x(0, _exRegs[0] & 0x1F);
SelectPrgPage2x(1, _exRegs[0] & 0x1F);
SelectPrgPage2x(0, (_exRegs[0] & 0x0F) << 1);
SelectPrgPage2x(1, (_exRegs[0] & 0x0F) << 1);
} else {
MMC3::UpdatePrgMapping();
}
}
virtual void UpdateMirroring() override
{
//See $8000 writes below
}
virtual void WriteRegister(uint16_t addr, uint8_t value) override
{
switch(addr & 0xE000) {
case 0x4000: case 0x6000:
if((addr & 0x07) == 0x00) {
if(addr < 0x8000) {
_exRegs[0] = value;
UpdatePrgMapping();
}
break;
case 0x8000:
SetMirroringType(value & 0x01 ? MirroringType::Horizontal : MirroringType::Vertical);
break;
} else {
switch(addr & 0xE001) {
case 0x8001: MMC3::WriteRegister(0xA000, value); break;
case 0xA000:
value = (value & 0xC0) | _security[value & 0x07];
MMC3::WriteRegister(0x8000, (value & 0xC0) | _security[value & 0x07]);
_exRegs[1] = 1;
MMC3::WriteRegister(0x8000, value);
break;
case 0xA001:
_irqReloadValue = value;
break;
case 0xC000:
@ -67,15 +60,19 @@ protected:
}
break;
case 0xC001:
_irqReload = true;
break;
case 0xE000:
if(value > 0) {
MMC3::WriteRegister(0xE001, value);
MMC3::WriteRegister(0xC000, value);
MMC3::WriteRegister(0xC001, value);
} else {
MMC3::WriteRegister(0xE000, value);
}
_console->GetCpu()->ClearIrqSource(IRQSource::External);
_irqEnabled = false;
break;
case 0xE001:
_irqEnabled = true;
break;
}
}
}
};