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Mapper 123 support

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This commit is contained in:
Souryo 2016-09-05 14:22:17 -04:00
parent 34664e79ca
commit 8765e2b8cb
4 changed files with 65 additions and 1 deletions
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1
Core/Core.vcxproj
View file

@ -477,6 +477,7 @@
<ClInclude Include="Mapper234.h" />
<ClInclude Include="Mapper183.h" />
<ClInclude Include="Mapper253.h" />
<ClInclude Include="MMC3_123.h" />
<ClInclude Include="MMC3_134.h" />
<ClInclude Include="MMC3_196.h" />
<ClInclude Include="MMC3_219.h" />

3
Core/Core.vcxproj.filters
View file

@ -937,6 +937,9 @@
<ClInclude Include="Mapper216.h">
<Filter>Nes\Mappers\Unnamed</Filter>
</ClInclude>
<ClInclude Include="MMC3_123.h">
<Filter>Nes\Mappers\MMC</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<ClCompile Include="stdafx.cpp">

58
Core/MMC3_123.h Normal file
View file

@ -0,0 +1,58 @@
#pragma once
#include "stdafx.h"
#include "MMC3.h"
class MMC3_123 : public MMC3
{
private:
const uint8_t _security[8] = { 0,3,1,5,6,7,2,4 };
uint8_t _exReg[2];
void UpdatePrgMapping() override
{
if(_exReg[0] & 0x40) {
uint8_t bank = (_exReg[0] & 0x05) | ((_exReg[0] & 0x08) >> 2) | ((_exReg[0] & 0x20) >> 2);
if(_exReg[0] & 0x02) {
SelectPrgPage4x(0, (bank & 0xFE) << 1);
} else {
SelectPrgPage2x(0, bank << 1);
SelectPrgPage2x(1, bank << 1);
}
} else {
MMC3::UpdatePrgMapping();
}
}
void InitMapper() override
{
MMC3::InitMapper();
_exReg[0] = _exReg[1] = 0;
AddRegisterRange(0x5001, 0x5FFF, MemoryOperation::Write);
}
void StreamState(bool saving) override
{
MMC3::StreamState(saving);
Stream(_exReg[0], _exReg[1]);
}
void WriteRegister(uint16_t addr, uint8_t value) override
{
if(addr < 0x8000 && addr & 0x0800) {
if(addr & 0x01) {
_exReg[1] = value;
} else {
_exReg[0] = value;
}
UpdatePrgMapping();
} else if(addr < 0xA000) {
switch(addr & 0x8001) {
case 0x8000: MMC3::WriteRegister(0x8000, (value & 0xC0) | (_security[value & 0x07])); break;
case 0x8001: MMC3::WriteRegister(0x8001, value); break;
}
} else {
MMC3::WriteRegister(addr, value);
}
}
};

4
Core/MapperFactory.cpp
View file

@ -102,6 +102,7 @@
#include "MMC3_114.h"
#include "MMC3_115.h"
#include "MMC3_121.h"
#include "MMC3_123.h"
#include "MMC3_134.h"
#include "MMC3_165.h"
#include "MMC3_182.h"
@ -193,7 +194,7 @@ Supported mappers:
| 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|===|103| |105|106|107|108|===|===|===|
|112|113|114|115| |117|118|119|120|121|===| |===| | |===|
|112|113|114|115| |117|118|119|120|121|===|123|===| | |===|
|===|===|===|===|132|133|134|===|136|137|138|139|140|141|142|143|
|144|145|146|147|148|149|150|151|152|153|154|155|156|157| |159|
|---|===|162|163|164|165|166|167|168|===|170|171|172|173|===|175|
@ -325,6 +326,7 @@ BaseMapper* MapperFactory::GetMapperFromID(RomData &romData)
case 119: return new MMC3_ChrRam(0x40, 0x7F, 8);
case 120: return new Mapper120();
case 121: return new MMC3_121();
case 123: return new MMC3_123();
case 132: return new Txc22211A();
case 133: return new Sachen_133();
case 134: return new MMC3_134();