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BizHawk
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mapper 133, 145, 146, 148, 149, 160: jovial race \ qi wang chinese chess \ sidewinder \ galactic crusader \ lucky 777 \ twin eagle \ mahjan samit kabukicho hen \ master chu & the drunkard hu \ metal fighter \ millionaire \ pyramid ii \ silent assault \ mahjong world \ shisen mahjong seifuku hen \ taiwan mahjong 16

This commit is contained in:
goyuken 2012-10-14 21:00:50 +00:00
parent b43acd123a
commit 0bf3ab7636
2 changed files with 111 additions and 0 deletions
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1
BizHawk.Emulation/BizHawk.Emulation.csproj
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@ -234,6 +234,7 @@
<SubType>Code</SubType>
</Compile>
<Compile Include="Consoles\Nintendo\NES\Boards\PxROM_FxROM.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\SachenSimple.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\Sunsoft1.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\Sunsoft2_m89.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\Sunsoft2_m93.cs" />

110
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/SachenSimple.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace BizHawk.Emulation.Consoles.Nintendo
{
// a number of boards used by Sachen (and others?)
// 32K prgrom blocks and 8k chrrom blocks
// behavior gleamed from FCEUX
// "Qi Wang - Chinese Chess (MGC-001) (Ch) [!]" and "Twin Eagle (Sachen) [!]" seem to have problems
public class SachenSimple : NES.NESBoardBase
{
Action<byte> ExpWrite = null;
Action<byte> PrgWrite = null;
int prg = 0;
int chr = 0;
int prg_mask;
int chr_mask;
int prg_addr_mask; // some carts have 16KB prg unswappable
public override bool Configure(NES.EDetectionOrigin origin)
{
switch (Cart.board_type)
{
case "MAPPER146":
case "UNL-SA-016-1M":
ExpWrite = SA0161M_Write;
break;
case "MAPPER145":
ExpWrite = SA72007_Write;
break;
case "MAPPER133":
ExpWrite = SA72008_Write;
break;
case "MAPPER160":
ExpWrite = SA009_Write;
break;
case "MAPPER149":
PrgWrite = SA72007_Write;
break;
case "MAPPER148":
PrgWrite = SA0161M_Write;
break;
default:
return false;
}
AssertPrg(16, 32, 64);
AssertChr(8, 16, 32, 64);
AssertVram(0);
AssertWram(0);
prg_mask = Cart.prg_size / 32 - 1;
chr_mask = Cart.chr_size / 8 - 1;
prg_addr_mask = Cart.prg_size * 1024 - 1;
SetMirrorType(Cart.pad_h, Cart.pad_v);
return true;
}
void SA0161M_Write(byte value)
{
prg = (value >> 3) & 1 & prg_mask;
chr = value & 7 & chr_mask;
}
void SA72007_Write(byte value)
{
chr = (value >> 7) & 1 & chr_mask;
}
void SA009_Write(byte value)
{
chr = value & 1 & chr_mask;
}
void SA72008_Write(byte value)
{
prg = (value >> 2) & 1 & prg_mask;
chr = value & 3 & chr_mask;
}
public override void WriteEXP(int addr, byte value)
{
if (ExpWrite != null && (addr & 0x100) != 0)
ExpWrite(value);
}
public override void WritePRG(int addr, byte value)
{
if (PrgWrite != null)
PrgWrite(value);
}
public override byte ReadPRG(int addr)
{
return ROM[(addr & prg_addr_mask) + (prg << 15)];
}
public override byte ReadPPU(int addr)
{
if (addr < 0x2000)
return VROM[addr + (chr << 13)];
else
return base.ReadPPU(addr);
}
public override void SyncState(Serializer ser)
{
base.SyncState(ser);
ser.Sync("chr", ref chr);
ser.Sync("prg", ref prg);
}
}
}