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Backport UNIF: Add BMC-L6IN1 board (Mapper 345)

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This commit is contained in:
LibretroAdmin 2022-08-29 20:49:21 +02:00
parent 61a4b6170e
commit 60046f9a17
3 changed files with 65 additions and 1 deletions
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62
Core/MMC3_BmcL6in1.h Normal file
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@ -0,0 +1,62 @@
#pragma once
#include "stdafx.h"
#include "MMC3.h"
class MMC3_BmcL6in1 : public MMC3
{
private:
uint8_t _exReg;
protected:
void InitMapper() override
{
AddRegisterRange(0x6000, 0x7FFF, MemoryOperation::Write);
_exReg = 0;
MMC3::InitMapper();
}
void Reset(bool softreset) override
{
_exReg = 0;
UpdateState();
}
void StreamState(bool saving) override
{
MMC3::StreamState(saving);
Stream(_exReg);
}
void UpdateMirroring() override
{
if(_exReg & 0x20) {
SetMirroringType((_exReg & 0x10) ? MirroringType::ScreenBOnly : MirroringType::ScreenAOnly);
} else {
MMC3::UpdateMirroring();
}
}
void SelectPRGPage(uint16_t slot, uint16_t page, PrgMemoryType memoryType = PrgMemoryType::PrgRom) override
{
if(_exReg & 0x0C) {
MMC3::SelectPRGPage(slot, (page & 0x0F) | (_exReg & 0xC0) >> 2);
} else {
uint8_t bank = ((_exReg & 0xC0) >> 4) | (_exReg & 0x03);
SelectPrgPage4x(0, bank << 2);
}
}
void WriteRegister(uint16_t addr, uint8_t value) override
{
if(addr < 0x8000) {
if(CanWriteToWorkRam()) {
_exReg = value;
UpdatePrgMapping();
UpdateMirroring();
}
} else {
MMC3::WriteRegister(addr, value);
}
}
};

3
Core/MapperFactory.cpp
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@ -193,6 +193,7 @@
#include "MMC3_BmcGn26.h"
#include "MMC3_BmcK3006.h"
#include "MMC3_BmcK3033.h"
#include "MMC3_BmcL6in1.h"
#include "MMC3_ChrRam.h"
#include "MMC3_Coolboy.h"
#include "MMC3_Kof97.h"
@ -622,7 +623,7 @@ BaseMapper* MapperFactory::GetMapperFromID(RomData &romData)
case 342: break; //COOLGIRL
//343
case 344: return new MMC3_BmcGn26();
case 345: break; //L6IN1
case 345: return new MMC3_BmcL6in1();
case 346: return new Kaiser7012();
//347
case 348: return new Bmc830118C();

1
Core/UnifLoader.cpp
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@ -180,4 +180,5 @@ std::unordered_map<string, int> UnifLoader::_boardMappings = std::unordered_map<
{ "K-3006", 339 },
{ "K-3033", 322 },
{ "K-3036", 340 },
{ "L6IN1", 345 },
};