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Mapper 68 (SunSoft 4) support (incomplete)

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This commit is contained in:
Souryo 2016-01-23 13:48:48 -05:00
parent 85463f6f9d
commit 4a95c16e88
4 changed files with 55 additions and 0 deletions
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1
Core/Core.vcxproj
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@ -475,6 +475,7 @@
<ClInclude Include="stdafx.h" />
<ClInclude Include="Sunsoft184.h" />
<ClInclude Include="SunSoft3.h" />
<ClInclude Include="SunSoft4.h" />
<ClInclude Include="Sunsoft89.h" />
<ClInclude Include="Sunsoft93.h" />
<ClInclude Include="TaitoTc0190.h" />

3
Core/Core.vcxproj.filters
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@ -440,6 +440,9 @@
<ClInclude Include="VRC3.h">
<Filter>Nes\Mappers</Filter>
</ClInclude>
<ClInclude Include="SunSoft4.h">
<Filter>Nes\Mappers</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<ClCompile Include="stdafx.cpp">

2
Core/MapperFactory.cpp
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@ -61,6 +61,7 @@
#include "Sachen_148.h"
#include "Sachen_149.h"
#include "Sunsoft3.h"
#include "Sunsoft4.h"
#include "Sunsoft89.h"
#include "Sunsoft93.h"
#include "Sunsoft184.h"
@ -116,6 +117,7 @@ BaseMapper* MapperFactory::GetMapperFromID(ROMLoader &romLoader)
case 62: return new Mapper62();
case 66: return new GxRom();
case 67: return new SunSoft3();
case 68: return new SunSoft4(); //incomplete support
case 70: return new Bandai74161_7432(false);
case 71: return new BF909x();
case 72: return new JalecoJf17_19(false);

49
Core/SunSoft4.h Normal file
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@ -0,0 +1,49 @@
#pragma once
#include "stdafx.h"
#include "BaseMapper.h"
#include "CPU.h"
class SunSoft4 : public BaseMapper
{
protected:
virtual uint16_t GetPRGPageSize() { return 0x4000; }
virtual uint16_t GetCHRPageSize() { return 0x800; }
void InitMapper()
{
SelectPRGPage(1, -1);
}
virtual void StreamState(bool saving)
{
BaseMapper::StreamState(saving);
}
void WriteRegister(uint16_t addr, uint8_t value)
{
switch(addr & 0xF000) {
case 0x8000: SelectCHRPage(0, value); break;
case 0x9000: SelectCHRPage(1, value); break;
case 0xA000: SelectCHRPage(2, value); break;
case 0xB000: SelectCHRPage(3, value); break;
case 0xC000:
//TODO
break;
case 0xD000:
//TODO
break;
case 0xE000:
switch(value & 0x03) {
case 0: SetMirroringType(MirroringType::Vertical); break;
case 1: SetMirroringType(MirroringType::Horizontal); break;
case 2: SetMirroringType(MirroringType::ScreenAOnly); break;
case 3: SetMirroringType(MirroringType::ScreenBOnly); break;
}
break;
case 0xF000:
SelectPRGPage(0, value & 0x0F);
//_prgRamEnabled = (value & 0x10) == 0x10;
break;
}
}
};