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NES - implement CRAM & PRAM memory domains, hooked them properly on SxROM boards. TODO: other boards

This commit is contained in:
andres.delikat 2011-03-06 04:40:56 +00:00
parent ed9930be62
commit 4e8d161ed8
2 changed files with 41 additions and 3 deletions
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22
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/SxROM.cs
View File

@ -408,6 +408,28 @@ namespace BizHawk.Emulation.Consoles.Nintendo.Boards
}
}
public override byte[] PRam
{
get
{
if (RomInfo.PRAM_Size > 0)
return pram;
else
return null;
}
}
public override byte[] CRam
{
get
{
if (RomInfo.CRAM_Size > 0)
return cram;
else
return null;
}
}
public override void SaveStateBinary(BinaryWriter bw)
{
base.SaveStateBinary(bw);

22
BizHawk.Emulation/Consoles/Nintendo/NES/NES.cs
View File

@ -63,6 +63,8 @@ namespace BizHawk.Emulation.Consoles.Nintendo
void WritePRAM(int addr, byte value);
void Initialize(RomInfo romInfo, NES nes);
byte[] SaveRam { get; }
byte[] PRam { get; }
byte[] CRam { get; }
void SaveStateBinary(BinaryWriter bw);
void LoadStateBinary(BinaryReader br);
};
@ -157,6 +159,8 @@ namespace BizHawk.Emulation.Consoles.Nintendo
}
public virtual byte[] SaveRam { get { return null; } }
public virtual byte[] PRam { get { return null; } }
public virtual byte[] CRam { get { return null; } }
}
//hardware/state
@ -465,7 +469,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
if (board.SaveRam != null)
{
var BatteryRam = new MemoryDomain("Battery RAM", board.SaveRam.Length, Endian.Little,
addr => board.SaveRam[addr & board.SaveRam.Length], (addr, value) => board.SaveRam[addr & SaveRam.Length] = value);
addr => board.SaveRam[addr], (addr, value) => board.SaveRam[addr] = value);
domains.Add(BatteryRam);
}
@ -480,11 +484,23 @@ namespace BizHawk.Emulation.Consoles.Nintendo
domains.Add(CHRROM);
}
if (board.CRam != null)
{
var CRAM = new MemoryDomain("CRAM", board.CRam.Length, Endian.Little,
addr => board.CRam[addr], (addr, value) => board.CRam[addr] = value);
domains.Add(CRAM);
}
if (board.PRam != null)
{
var PRAM = new MemoryDomain("PRAM", board.PRam.Length, Endian.Little,
addr => board.PRam[addr], (addr, value) => board.PRam[addr] = value);
domains.Add(PRAM);
}
memoryDomains = domains.AsReadOnly();
}
//TODO: PRAM & CRAM
public string SystemId { get { return "NES"; } }
public IList<MemoryDomain> MemoryDomains { get { return memoryDomains; } }
public MemoryDomain MainMemory { get { return memoryDomains[0]; } }