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Mapper 187 check 

I think sonic and fight zero 97 need a different mapper
This commit is contained in:
alyosha-tas 2016-10-03 18:11:18 -04:00 committed by GitHub
parent 9b3bd8e94e
commit 70016ba8ee
1 changed files with 120 additions and 115 deletions
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235
BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/MMC3_family/Mapper187.cs
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@ -1,115 +1,120 @@
using BizHawk.Common;
namespace BizHawk.Emulation.Cores.Nintendo.NES
{
// Adapted from FCEUX src
public class Mapper187 : MMC3Board_Base
{
private ByteBuffer exRegs = new ByteBuffer(2);
private readonly byte[] prot_data = { 0x83, 0x83, 0x42, 0x00 };
public override bool Configure(NES.EDetectionOrigin origin)
{
switch (Cart.board_type)
{
case "MAPPER187":
break;
default:
return false;
}
BaseSetup();
return true;
}
public override void SyncState(Serializer ser)
{
base.SyncState(ser);
ser.Sync("expregs", ref exRegs);
}
public override void WritePRG(int addr, byte value)
{
if (addr == 0 || addr == 1)
{
exRegs[1] = value;
}
base.WritePRG(addr, value);
}
public override void WriteEXP(int addr, byte value)
{
if (addr == 0x1000) // 0x5000
{
exRegs[0] = value;
}
base.WriteEXP(addr, value);
}
public override void WriteWRAM(int addr, byte value)
{
if (addr == 0x6000)
{
exRegs[0] = value;
}
base.WriteWRAM(addr, value);
}
public override byte ReadEXP(int addr)
{
if (addr >= 0x1000)
{
return prot_data[exRegs[1] & 3];
}
return base.ReadEXP(addr);
}
private byte MMc3_cmd
{
get
{
return (byte)(mmc3.chr_mode ? 0x80 : 0);
}
}
protected override int Get_CHRBank_1K(int addr)
{
if ((addr & 0x1000) == ((MMc3_cmd & 0x80) << 5))
{
return base.Get_CHRBank_1K(addr) | 0x100;
}
return base.Get_CHRBank_1K(addr);
}
public override byte ReadPRG(int addr)
{
if ((exRegs[0] & 0x80) > 0)
{
var bank = exRegs[0] & 0x1F;
if ((exRegs[0] & 0x20) > 0)
{
if ((exRegs[0] & 0x40) > 0)
{
return ROM[((bank >> 2) << 15) + addr];
}
else
{
return ROM[((bank >> 1) << 15) + addr]; // hacky! two mappers in one! need real hw carts to test
}
}
else
{
return ROM[(bank << 14) + (addr & 0x3FFF)];
}
}
return base.ReadPRG(addr);
}
}
}
using BizHawk.Common;
namespace BizHawk.Emulation.Cores.Nintendo.NES
{
// Adapted from FCEUX src
public class Mapper187 : MMC3Board_Base
{
private ByteBuffer exRegs = new ByteBuffer(2);
private readonly byte[] prot_data = { 0x83, 0x83, 0x42, 0x00 };
public override bool Configure(NES.EDetectionOrigin origin)
{
switch (Cart.board_type)
{
case "MAPPER187":
break;
default:
return false;
}
BaseSetup();
return true;
}
public override void SyncState(Serializer ser)
{
base.SyncState(ser);
ser.Sync("expregs", ref exRegs);
}
public override void WritePRG(int addr, byte value)
{
if (addr == 0)
{
exRegs[1] = 1;
base.WritePRG(addr, value);
}
else if ((addr == 0x0001) && (exRegs[1] > 0))
{
base.WritePRG(addr, value);
}
else
base.WritePRG(addr, value);
}
public override void WriteEXP(int addr, byte value)
{
if (addr == 0x1000) // 0x5000
{
exRegs[0] = value;
}
base.WriteEXP(addr, value);
}
public override void WriteWRAM(int addr, byte value)
{
if (addr == 0x0000)
{
exRegs[0] = value;
}
base.WriteWRAM(addr, value);
}
public override byte ReadEXP(int addr)
{
if (addr >= 0x1000)
{
return prot_data[exRegs[1] & 3];
}
return base.ReadEXP(addr);
}
private byte MMc3_cmd
{
get
{
return (byte)(mmc3.chr_mode ? 0x80 : 0);
}
}
protected override int Get_CHRBank_1K(int addr)
{
if ((addr & 0x1000) == ((MMc3_cmd & 0x80) << 5))
{
return base.Get_CHRBank_1K(addr) | 0x100;
}
return base.Get_CHRBank_1K(addr);
}
public override byte ReadPRG(int addr)
{
if ((exRegs[0] & 0x80) > 0)
{
var bank = exRegs[0] & 0x1F;
if ((exRegs[0] & 0x20) > 0)
{
if ((exRegs[0] & 0x40) > 0)
{
return ROM[((bank >> 2) << 15) + addr];
}
else
{
return ROM[((bank >> 1) << 15) + addr]; // hacky! two mappers in one! need real hw carts to test
}
}
else
{
return ROM[(bank << 14) + (addr & 0x3FFF)];
}
}
return base.ReadPRG(addr);
}
}
}