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N64: a quick hack greatly reduces memory thrashing (on my machine, varied usage of 300-800MB with default rewind settings replaced with a rather steady 300-350MB

This commit is contained in:
goyuken 2013-07-30 00:12:24 +00:00
parent 3b7f2a65a6
commit f3eb9e7fc7
1 changed files with 18 additions and 2 deletions
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20
BizHawk.Emulation/Consoles/Nintendo/N64/N64.cs
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@ -222,13 +222,29 @@ namespace BizHawk.Emulation.Consoles.Nintendo.N64
Frame = reader.ReadInt32();
}
byte[] SaveStateBinaryPrivateBuff = new byte[0];
public byte[] SaveStateBinary()
{
MemoryStream ms = new MemoryStream();
// WELCOME TO THE HACK ZONE
byte[] saveram = api.SaveSaveram();
int lenwant = 4 + SaveStatePrivateBuff.Length + saveram.Length + 1 + 4 + 4;
if (SaveStateBinaryPrivateBuff.Length != lenwant)
{
Console.WriteLine("Allocating new N64 private buffer size {0}", lenwant);
SaveStateBinaryPrivateBuff = new byte[lenwant];
}
MemoryStream ms = new MemoryStream(SaveStateBinaryPrivateBuff);
BinaryWriter bw = new BinaryWriter(ms);
SaveStateBinary(bw);
bw.Flush();
return ms.ToArray();
if (ms.Length != SaveStateBinaryPrivateBuff.Length)
throw new Exception("Unexpected Length");
return SaveStateBinaryPrivateBuff;// ms.ToArray();
}
public bool BinarySaveStatesPreferred { get { return true; } }