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Implement mapper 254

This commit is contained in:
adelikat 2016-09-16 10:03:28 -04:00
parent 1d098aa242
commit 2001978a3e
3 changed files with 72 additions and 0 deletions
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2
BizHawk.Emulation.Cores/BizHawk.Emulation.Cores.csproj
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@ -682,9 +682,11 @@
<Compile Include="Consoles\Nintendo\NES\Boards\MMC3_family\Mapper196.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\MMC3_family\Mapper197.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\MMC3_family\Mapper205.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\MMC3_family\Mapper219.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\MMC3_family\Mapper245.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\MMC3_family\Mapper249.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\MMC3_family\Mapper250.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\MMC3_family\Mapper254.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\MMC3_family\MMC3.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\MMC3_family\NES-QJ.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\MMC3_family\RexSoftSL1632.cs" />

19
BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/MMC3_family/Mapper219.cs Normal file
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@ -0,0 +1,19 @@
namespace BizHawk.Emulation.Cores.Nintendo.NES
{
public sealed class Mapper219 : MMC3Board_Base
{
public override bool Configure(NES.EDetectionOrigin origin)
{
switch (Cart.board_type)
{
case "MAPPER219":
break;
default:
return false;
}
BaseSetup();
return true;
}
}
}

51
BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/MMC3_family/Mapper254.cs Normal file
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@ -0,0 +1,51 @@
using BizHawk.Common;
namespace BizHawk.Emulation.Cores.Nintendo.NES
{
public sealed class Mapper254 : MMC3Board_Base
{
private ByteBuffer regs = new ByteBuffer(2);
public override bool Configure(NES.EDetectionOrigin origin)
{
switch (Cart.board_type)
{
case "MAPPER254":
break;
default:
return false;
}
BaseSetup();
return true;
}
public override byte ReadWRAM(int addr)
{
if (regs[0] > 0)
{
return WRAM[addr];
}
else
{
return (byte)(WRAM[addr] ^ regs[1]);
}
}
public override void WritePRG(int addr, byte value)
{
switch (addr)
{
case 0x0000:
regs[0] = 0xff;
break;
case 0x2001:
regs[1] = value;
break;
}
base.WritePRG(addr, value);
}
}
}