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Mapper 103 support

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This commit is contained in:
Souryo 2016-07-24 13:28:18 -04:00
parent 8db2845ffa
commit 01bd25c355
4 changed files with 84 additions and 1 deletions
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1
Core/Core.vcxproj
View file

@ -443,6 +443,7 @@
<ClInclude Include="Kaiser202.h" />
<ClInclude Include="Kaiser7022.h" />
<ClInclude Include="Kaiser7058.h" />
<ClInclude Include="Mapper103.h" />
<ClInclude Include="Mapper107.h" />
<ClInclude Include="Mapper108.h" />
<ClInclude Include="Mapper112.h" />

3
Core/Core.vcxproj.filters
View file

@ -832,6 +832,9 @@
<ClInclude Include="Mapper221.h">
<Filter>Nes\Mappers\Unnamed</Filter>
</ClInclude>
<ClInclude Include="Mapper103.h">
<Filter>Nes\Mappers\Unnamed</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<ClCompile Include="stdafx.cpp">

77
Core/Mapper103.h Normal file
View file

@ -0,0 +1,77 @@
#pragma once
#include "stdafx.h"
#include "BaseMapper.h"
class Mapper103 : public BaseMapper
{
private:
bool _prgRamDisabled;
uint8_t _prgReg;
protected:
virtual uint16_t GetPRGPageSize() { return 0x2000; }
virtual uint16_t GetCHRPageSize() { return 0x2000; }
virtual uint32_t GetWorkRamSize() { return 0x4000; }
virtual uint32_t GetWorkRamPageSize() { return 0x2000; }
virtual uint16_t RegisterStartAddress() { return 0x6000; }
virtual uint16_t EndStartAddress() { return 0xFFFF; }
void InitMapper()
{
_prgRamDisabled = false;
_prgReg = 0;
SelectCHRPage(0, 0);
UpdateState();
}
void StreamState(bool saving)
{
BaseMapper::StreamState(saving);
Stream(_prgRamDisabled, _prgReg);
if(!saving) {
UpdateState();
}
}
void UpdateState()
{
SelectPrgPage4x(0, -4);
if(_prgRamDisabled) {
SetCpuMemoryMapping(0x6000, 0x7FFF, _prgReg, PrgMemoryType::PrgRom);
} else {
SetCpuMemoryMapping(0x6000, 0x7FFF, 0, PrgMemoryType::WorkRam);
SetCpuMemoryMapping(0xB800, 0xD7FF, 1, PrgMemoryType::WorkRam);
}
}
void WriteRegister(uint16_t addr, uint8_t value)
{
switch(addr & 0xF000) {
case 0x6000: case 0x7000:
//Workram is always writeable, even when PRG ROM is mapped to $6000
_workRam[addr - 0x6000] = value;
break;
case 0x8000:
_prgReg = value & 0x0F;
UpdateState();
break;
case 0xB000: case 0xC000: case 0xD000:
//Workram is always writeable, even when PRG ROM is mapped to $B800-$D7FF
if(addr >= 0xB800 && addr < 0xD800) {
_workRam[0x2000 + addr - 0xB800] = value;
}
break;
case 0xE000:
SetMirroringType(value & 0x08 ? MirroringType::Horizontal : MirroringType::Vertical);
break;
case 0xF000:
_prgRamDisabled = (value & 0x10) == 0x10;
UpdateState();
break;
}
}
};

4
Core/MapperFactory.cpp
View file

@ -49,6 +49,7 @@
#include "Mapper61.h"
#include "Mapper62.h"
#include "Mapper91.h"
#include "Mapper103.h"
#include "Mapper107.h"
#include "Mapper108.h"
#include "Mapper112.h"
@ -163,7 +164,7 @@ Supported mappers:
| 48| 49| 50| 51| 52| 53| | | 56| 57| 58|===| 60| 61| 62| 63|
| 64| 65| 66| 67| 68| 69| 70| 71| 72| 73| 74| 75| 76| 77| 78| 79|
| 80|===| 82| |===| 85| 86| 87| 88| 89| 90| 91| 92| 93| 94| 95|
| 96| 97|===| 99|...|101|===| | | | |107|108|===|===|===|
| 96| 97|===| 99|...|101|===|103| | | |107|108|===|===|===|
|112|113| |115| | |118|119| | |===| |===| | |===|
|===|===|===|===|132|133| |===| |137|138|139|140|141|142|143|
|144|145|146|147|148|149|150|151|152|153|154|155|156|157| |159|
@ -280,6 +281,7 @@ BaseMapper* MapperFactory::GetMapperFromID(RomData &romData)
case 97: return new IremTamS1();
case 99: return new VsSystem();
case 101: return new JalecoJfxx(true);
case 103: return new Mapper103();
case 105: break; //NES World Champ - has dip switches
case 107: return new Mapper107();
case 108: return new Mapper108();