Mesen2/Core/NES/Mappers/Mmc3Variants/MMC3_MaliSB.h
2022-09-08 21:29:52 -04:00

27 lines
No EOL
816 B
C++

#pragma once
#include "pch.h"
#include "NES/Mappers/Nintendo/MMC3.h"
class MMC3_MaliSB : public MMC3
{
protected:
void SelectChrPage(uint16_t slot, uint16_t page, ChrMemoryType memoryType = ChrMemoryType::Default) override
{
MMC3::SelectChrPage(slot, (page & 0xDD) | ((page & 0x20) >> 4) | ((page & 0x02) << 4), memoryType);
}
void SelectPrgPage(uint16_t slot, uint16_t page, PrgMemoryType memoryType = PrgMemoryType::PrgRom) override
{
MMC3::SelectPrgPage(slot, (page & 0x03) | ((page & 0x08) >> 1) | ((page & 0x04) << 1), memoryType);
}
void WriteRegister(uint16_t addr, uint8_t value) override
{
if(addr >= 0xC000) {
addr = (addr & 0xFFFE) | ((addr >> 2) & 0x01) | ((addr >> 3) & 0x01);
} else {
addr = (addr & 0xFFFE) | ((addr >> 3) & 0x01);
}
MMC3::WriteRegister(addr, value);
}
};