ShuriZma
/
BizHawk
mirror of https://github.com/TASEmulators/BizHawk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

NESHawk - implement board UNIF_BMC-8157

This commit is contained in:
adelikat 2015-08-23 16:20:12 -04:00
parent af0219655e
commit 535a307e27
2 changed files with 65 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
BizHawk.Emulation.Cores/BizHawk.Emulation.Cores.csproj
View File

@ -640,6 +640,7 @@
<Compile Include="Consoles\Nintendo\NES\Boards\TENGEN_800008.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF-DREAMTECH01.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF_BMC-190in1.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF_BMC-8157.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF_BMC-A65AS.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF_BMC-BS-5.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF_BMC-GS-2004.cs" />

64
BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/UNIF/UNIF_BMC-8157.cs Normal file
View File

@ -0,0 +1,64 @@
using BizHawk.Common;
namespace BizHawk.Emulation.Cores.Nintendo.NES
{
// 4-in-1 1993 (CK-001) [U][!].unf
public class UNIF_BMC_8157 : NES.NESBoardBase
{
[MapperProp]
public bool _4in1Mode;
private int _cmdreg;
private int _prgMask16k;
public override bool Configure(NES.EDetectionOrigin origin)
{
switch (Cart.board_type)
{
case "UNIF_BMC-8157":
break;
default:
return false;
}
_prgMask16k = Cart.prg_size / 16 - 1;
AutoMapperProps.Apply(this);
return true;
}
public override void SyncState(Serializer ser)
{
base.SyncState(ser);
ser.Sync("cmdreg", ref _cmdreg);
ser.Sync("4in1Mode", ref _4in1Mode);
}
public override void WritePRG(int addr, byte value)
{
_cmdreg = addr;
int mir = ((_cmdreg & 2) >> 1) ^ 1;
SetMirrorType(mir == 1 ? EMirrorType.Vertical : EMirrorType.Horizontal);
}
public override byte ReadPRG(int addr)
{
if (_4in1Mode)
{
if (((_cmdreg & 0x100) > 0) && Cart.prg_size < 1024)
{
addr = (addr & 0xFFF0) + (1);
}
}
int basei = ((_cmdreg & 0x060) | ((_cmdreg & 0x100) >> 1)) >> 2;
int bank = (_cmdreg & 0x01C) >> 2;
int lbank = ((_cmdreg & 0x200) > 0) ? 7 : (((_cmdreg & 0x80) > 0) ? bank : 0);
int final = basei | (addr < 0x4000 ? bank : lbank);
return ROM[((final & _prgMask16k) * 0x4000) + (addr & 0x3FFF)];
}
}
}