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nes-support mapper 101

This commit is contained in:
zeromus 2012-10-10 18:13:09 +00:00
parent 927fb7070c
commit 54810ee6c6
2 changed files with 58 additions and 0 deletions
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1
BizHawk.Emulation/BizHawk.Emulation.csproj
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@ -158,6 +158,7 @@
<Compile Include="Consoles\Nintendo\NES\Boards\Mapper069.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\Mapper090.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\Mapper091.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\Mapper101.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\Mapper107.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\Mapper116.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\Mapper120.cs" />

57
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/Mapper101.cs Normal file
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@ -0,0 +1,57 @@
using System;
using System.IO;
using System.Diagnostics;
namespace BizHawk.Emulation.Consoles.Nintendo
{
//Urusei Yatsura - Lum no Wedding Bell (J)
class Mapper101 : NES.NESBoardBase
{
//configuration
int chr_bank_mask_8k;
//state
int chr_bank_8k;
public override void SyncState(Serializer ser)
{
base.SyncState(ser);
ser.Sync("chr_bank_8k", ref chr_bank_8k);
}
public override bool Configure(NES.EDetectionOrigin origin)
{
//configure
switch (Cart.board_type)
{
case "MAPPER101":
AssertPrg(32); AssertWram(0); AssertVram(0); AssertBattery(false);
break;
default:
return false;
}
chr_bank_mask_8k = (Cart.chr_size / 8) - 1;
SetMirrorType(Cart.pad_h, Cart.pad_v);
return true;
}
public override byte ReadPPU(int addr)
{
if (addr < 0x2000)
{
int ofs = addr & ((1 << 13) - 1);
addr = (chr_bank_8k << 13) | ofs;
return VROM[addr];
}
else return base.ReadPPU(addr);
}
public override void WriteWRAM(int addr, byte value)
{
chr_bank_8k = value & chr_bank_mask_8k;
}
}
}