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Mapper 37 support

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This commit is contained in:
Souryo 2016-01-20 19:44:52 -05:00
parent c034133518
commit 642faea14a
4 changed files with 62 additions and 1 deletions
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1
Core/Core.vcxproj
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@ -382,6 +382,7 @@
<ClInclude Include="Mapper246.h" />
<ClInclude Include="Mapper58.h" />
<ClInclude Include="MMC3_115.h" />
<ClInclude Include="MMC3_37.h" />
<ClInclude Include="MMC3_ChrRam.h" />
<ClInclude Include="NtdecTc112.h" />
<ClInclude Include="SoundMixer.h" />

3
Core/Core.vcxproj.filters
View file

@ -407,6 +407,9 @@
<ClInclude Include="MMC3_205.h">
<Filter>Nes\Mappers</Filter>
</ClInclude>
<ClInclude Include="MMC3_37.h">
<Filter>Nes\Mappers</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<ClCompile Include="stdafx.cpp">

56
Core/MMC3_37.h Normal file
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@ -0,0 +1,56 @@
#pragma once
#include "stdafx.h"
#include "MMC3.h"
class MMC3_37 : public MMC3
{
private:
uint8_t _selectedBlock = 0;
protected:
virtual uint16_t RegisterStartAddress() { return 0x6000; }
virtual uint16_t RegisterEndAddress() { return 0xFFFF; }
virtual void StreamState(bool saving)
{
Stream<uint8_t>(_selectedBlock);
MMC3::StreamState(saving);
}
virtual void SelectCHRPage(uint16_t slot, uint16_t page, ChrMemoryType memoryType = ChrMemoryType::Default)
{
if(_selectedBlock >= 4) {
page |= 0x80;
}
MMC3::SelectCHRPage(slot, page, memoryType);
}
virtual void SelectPRGPage(uint16_t slot, uint16_t page, PrgMemoryType memoryType = PrgMemoryType::PrgRom)
{
if(_selectedBlock <= 2) {
page &= 0x07;
} else if(_selectedBlock == 3) {
page &= 0x07;
page |= 0x08;
} else if(_selectedBlock == 7) {
page &= 0x07;
page |= 0x20;
} else if(_selectedBlock >= 4) {
page &= 0x0F;
page |= 0x10;
}
MMC3::SelectPRGPage(slot, page, memoryType);
}
void WriteRegister(uint16_t addr, uint8_t value)
{
if(addr < 0x8000) {
_selectedBlock = value & 0x07;
UpdateState();
} else {
MMC3::WriteRegister(addr, value);
}
}
};

3
Core/MapperFactory.cpp
View file

@ -31,6 +31,7 @@
#include "MMC1.h"
#include "MMC2.h"
#include "MMC3.h"
#include "MMC3_37.h"
#include "MMC3_115.h"
#include "MMC3_189.h"
#include "MMC3_205.h"
@ -92,7 +93,7 @@ BaseMapper* MapperFactory::GetMapperFromID(ROMLoader &romLoader)
case 32: return new IremG101();
case 33: return new TaitoTc0190();
case 34: return (romLoader.GetChrSize() > 0) ? (BaseMapper*)new Nina01() : (BaseMapper*)new BnRom(); //BnROM uses CHR RAM (so no CHR rom in the .NES file)
case 37: break;
case 37: return new MMC3_37();
case 38: return new UnlPci556();
case 58: return new Mapper58();
case 66: return new GxRom();