Mesen2/Core/NES/Mappers/Irem/IremLrog017.h
2022-09-08 21:29:52 -04:00

30 lines
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793 B
C++

#pragma once
#include "pch.h"
#include "NES/BaseMapper.h"
class IremLrog017 : public BaseMapper
{
protected:
uint16_t GetPrgPageSize() override { return 0x8000; }
uint16_t GetChrPageSize() override { return 0x0800; }
uint32_t GetChrRamSize() override { return 0x1800; }
uint16_t GetChrRamPageSize() override { return 0x0800; }
bool HasBusConflicts() override { return true; }
void InitMapper() override
{
SelectPrgPage(0, 0);
SelectChrPage(0, 0);
SetMirroringType(MirroringType::FourScreens);
SelectChrPage(1, 0, ChrMemoryType::ChrRam);
SelectChrPage(2, 1, ChrMemoryType::ChrRam);
SelectChrPage(3, 2, ChrMemoryType::ChrRam);
}
void WriteRegister(uint16_t addr, uint8_t value) override
{
SelectPrgPage(0, value & 0x0F);
SelectChrPage(0, (value >> 4) & 0x0F);
}
};