Mesen/Core/Sunsoft89.h

22 lines
563 B
C++

#pragma once
#include "stdafx.h"
#include "BaseMapper.h"
class Sunsoft89 : public BaseMapper
{
protected:
virtual uint16_t GetPRGPageSize() override { return 0x4000; }
virtual uint16_t GetCHRPageSize() override { return 0x2000; }
void InitMapper() override
{
SelectPRGPage(1, -1);
}
void WriteRegister(uint16_t addr, uint8_t value) override
{
SelectPRGPage(0, (value >> 4) & 0x07);
SelectCHRPage(0, (value & 0x07) | ((value & 0x80) >> 4));
SetMirroringType((value & 0x08) == 0x08 ? MirroringType::ScreenBOnly : MirroringType::ScreenAOnly);
}
};