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Mapper 49 support

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This commit is contained in:
Souryo 2016-01-23 09:38:20 -05:00
parent 2f2c5d8c1f
commit 9814c3fd8a
4 changed files with 69 additions and 0 deletions
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1
Core/Core.vcxproj
View file

@ -386,6 +386,7 @@
<ClInclude Include="MMC3_37.h" />
<ClInclude Include="MMC3_44.h" />
<ClInclude Include="MMC3_47.h" />
<ClInclude Include="MMC3_49.h" />
<ClInclude Include="MMC3_ChrRam.h" />
<ClInclude Include="NtdecTc112.h" />
<ClInclude Include="SoundMixer.h" />

3
Core/Core.vcxproj.filters
View file

@ -419,6 +419,9 @@
<ClInclude Include="MMC3_44.h">
<Filter>Nes\Mappers</Filter>
</ClInclude>
<ClInclude Include="MMC3_49.h">
<Filter>Nes\Mappers</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<ClCompile Include="stdafx.cpp">

63
Core/MMC3_49.h Normal file
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@ -0,0 +1,63 @@
#pragma once
#include "stdafx.h"
#include "MMC3.h"
class MMC3_49 : public MMC3
{
private:
uint8_t _selectedBlock = 0;
uint8_t _prgReg = 0;
uint8_t _prgMode = 0;
protected:
virtual uint16_t RegisterStartAddress() { return 0x6000; }
virtual uint16_t RegisterEndAddress() { return 0xFFFF; }
virtual void StreamState(bool saving)
{
Stream<uint8_t>(_selectedBlock);
Stream<uint8_t>(_prgReg);
Stream<uint8_t>(_prgMode);
MMC3::StreamState(saving);
}
virtual void Reset(bool softReset)
{
_prgReg = 0;
_prgMode = false;
_selectedBlock = 0;
UpdateState();
}
virtual void SelectCHRPage(uint16_t slot, uint16_t page, ChrMemoryType memoryType = ChrMemoryType::Default)
{
page &= 0x7F;
page |= 0x80 * _selectedBlock;
MMC3::SelectCHRPage(slot, page, memoryType);
}
virtual void SelectPRGPage(uint16_t slot, uint16_t page, PrgMemoryType memoryType = PrgMemoryType::PrgRom)
{
if(_prgMode) {
page &= 0x0F;
page |= 0x10 * _selectedBlock;
} else {
page = _prgReg * 4 + slot;
}
MMC3::SelectPRGPage(slot, page, memoryType);
}
void WriteRegister(uint16_t addr, uint8_t value)
{
if(addr < 0x8000) {
if(CanWriteToWorkRam()) {
_selectedBlock = (value >> 6) & 0x03;
_prgReg = (value >> 4) & 0x03;
_prgMode = value & 0x01;
UpdateState();
}
} else {
MMC3::WriteRegister(addr, value);
}
}
};

2
Core/MapperFactory.cpp
View file

@ -35,6 +35,7 @@
#include "MMC3_37.h"
#include "MMC3_44.h"
#include "MMC3_47.h"
#include "MMC3_49.h"
#include "MMC3_115.h"
#include "MMC3_189.h"
#include "MMC3_205.h"
@ -101,6 +102,7 @@ BaseMapper* MapperFactory::GetMapperFromID(ROMLoader &romLoader)
case 38: return new UnlPci556();
case 44: return new MMC3_44();
case 47: return new MMC3_47();
case 49: return new MMC3_49();
case 58: return new Mapper58();
case 66: return new GxRom();
case 70: return new Bandai74161_7432(false);