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NesHawk - support board UNIF_BMC-810544-C-A1

This commit is contained in:
adelikat 2016-10-28 12:24:40 -05:00
parent 9992780c4d
commit 0a85b24b88
2 changed files with 63 additions and 0 deletions
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1
BizHawk.Emulation.Cores/BizHawk.Emulation.Cores.csproj
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@ -754,6 +754,7 @@
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF_BMC-12-IN-1.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF_BMC-190in1.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF_BMC-64in1-NR.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF_BMC-810544-C-A1.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" />

62
BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/UNIF/UNIF_BMC-810544-C-A1.cs Normal file
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@ -0,0 +1,62 @@
using BizHawk.Common;
using BizHawk.Common.NumberExtensions;
namespace BizHawk.Emulation.Cores.Nintendo.NES
{
public sealed class UNIF_BMC_810544_C_A1 : NES.NESBoardBase
{
private int latche;
private int prg_mask_32k, prg_mask_16k;
public override bool Configure(NES.EDetectionOrigin origin)
{
switch (Cart.board_type)
{
case "UNIF_BMC-810544-C-A1":
break;
default:
return false;
}
prg_mask_32k = Cart.prg_size / 32 - 1;
prg_mask_16k = Cart.prg_size / 16 - 1;
return true;
}
public override void SyncState(Serializer ser)
{
ser.Sync("latche", ref latche);
base.SyncState(ser);
}
public override void WritePRG(int addr, byte value)
{
latche = addr & 65535;
SetMirrorType(addr.Bit(3) ? EMirrorType.Vertical : EMirrorType.Horizontal);
}
public override byte ReadPRG(int addr)
{
int bank = latche >> 7;
if (latche.Bit(6))
{
return ROM[((bank & prg_mask_32k) << 15) + addr];
}
int bank16 = (bank << 1) | ((latche >> 5) & 1);
bank16 &= prg_mask_16k;
return ROM[(bank16 << 14) + (addr & 0x3FFF)];
}
public override byte ReadPPU(int addr)
{
if (addr < 0x2000)
{
return VROM[((latche & 0x0F) << 13) + addr];
}
return base.ReadPPU(addr);
}
}
}