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

Start unif UNL-TF1201 board, still needs IRQs

This commit is contained in:
adelikat 2016-09-16 22:22:34 -04:00
parent c746d3f9db
commit 9734588404
2 changed files with 127 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

@ -751,6 +751,7 @@
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF_UNL-AX5705.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF_UNL-CC-21.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF_UNL-EDU2000.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF_UNL-TF1201.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\UNIF\UNIF_UNL_DripGame.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\UxROM.cs">
<SubType>Code</SubType>

126
BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/UNIF/UNIF_UNL-TF1201.cs Normal file
View File

@ -0,0 +1,126 @@
using BizHawk.Common;
using BizHawk.Common.NumberExtensions;
namespace BizHawk.Emulation.Cores.Nintendo.NES
{
public class UNIF_UNL_TF1201 : NES.NESBoardBase
{
private byte prg0;
private byte prg1;
private byte swap;
private ByteBuffer chr = new ByteBuffer(8);
private int prg_mask_8k;
public override bool Configure(NES.EDetectionOrigin origin)
{
switch (Cart.board_type)
{
case "UNIF_UNL-TF1201":
break;
default:
return false;
}
prg_mask_8k = Cart.prg_size / 8 - 1;
return true;
}
public override void SyncState(Serializer ser)
{
base.SyncState(ser);
ser.Sync("prg0", ref prg0);
ser.Sync("prg1", ref prg1);
ser.Sync("swap", ref swap);
ser.Sync("chr", ref chr);
}
public override void WritePRG(int addr, byte value)
{
addr += 0x8000;
addr = (addr & 0xF003) | ((addr & 0xC) >> 2);
if ((addr >= 0xB000) && (addr <= 0xE003))
{
int ind = (((addr >> 11) - 6) | (addr & 1)) & 7;
int sar = ((addr & 2) << 1);
chr[ind] = (byte)((chr[ind] & (0xF0 >> sar)) | ((value & 0x0F) << sar));
}
else switch (addr & 0xF003)
{
case 0x8000:
prg0 = value;
break;
case 0xA000:
prg1 = value;
break;
case 0x9000:
SetMirrorType(value.Bit(0) ? EMirrorType.Horizontal : EMirrorType.Vertical);
break;
case 0x9001: swap = (byte)(value & 3);
break;
// TODO: IRQ
case 0xF000: break;
case 0xF002: break;
case 0xF001:
case 0xF003: break;
}
}
public override byte ReadPRG(int addr)
{
int bank;
if (addr < 0x2000)
{
if ((swap & 3) > 0)
{
bank = prg_mask_8k - 1;
}
else
{
bank = prg0;
}
}
else if (addr < 0x4000)
{
if ((swap & 3) > 0)
{
bank = prg0;
}
else
{
bank = prg_mask_8k;
}
}
else if (addr < 0x6000)
{
bank = prg0;
}
else
{
bank = prg_mask_8k;
}
return ROM[(bank << 13) + (addr & 0x1FFF)];
}
public override byte ReadPPU(int addr)
{
if (addr < 0x2000)
{
int x = (addr >> 10) & 7;
return VROM[(chr[x] << 10) + (addr & 0x3FF)];
}
return base.ReadPPU(addr);
}
}
}