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This commit is contained in:
beirich 2012-09-13 04:15:25 +00:00
parent adee5befa5
commit 2d2af1d143
2 changed files with 96 additions and 0 deletions
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63
BizHawk.Emulation/Consoles/Sega/Genesis/Cart/RomHeader.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace BizHawk.Emulation.Consoles.Sega
{
partial class Genesis
{
public string RH_Console { get { return GetRomString(0x100, 0x10); } }
public string RH_Copyright { get { return GetRomString(0x110, 0x10); } }
public string RH_NameDomestic { get { return GetRomString(0x120, 0x30); } }
public string RH_NameExport { get { return GetRomString(0x150, 0x30); } }
public int RH_RomSize { get { return GetRomLongWord(0x1A4); } }
public string RH_Region { get { return GetRomString(0x1F0, 3); } }
public bool RH_SRamPresent { get { return (RomData[0x1B2] & 0x40) != 0; } }
public int RH_SRamCode { get { return (RomData[0x1B2] >> 3) & 3; } }
public int RH_SRamStart { get { return GetRomLongWord(0x1B4); } }
public int RH_SRamEnd { get { return GetRomLongWord(0x1B8); } }
public string RH_SRamInterpretation()
{
switch (RH_SRamCode)
{
case 0: return "Even and odd addresses";
case 2: return "Even addresses";
case 3: return "Odd addresses";
default: return "Invalid type";
}
}
string GetRomString(int offset, int len)
{
return Encoding.ASCII.GetString(RomData, offset, len).Trim();
}
int GetRomLongWord(int offset)
{
return (RomData[offset] << 24) | (RomData[offset + 1] << 16) | (RomData[offset + 2] << 8) | RomData[offset + 3];
}
void LogCartInfo()
{
Console.WriteLine("==================");
Console.WriteLine("ROM Cartridge Data");
Console.WriteLine("==================");
Console.WriteLine("System: {0}", RH_Console);
Console.WriteLine("Copyright: {0}", RH_Copyright);
Console.WriteLine("Name (Dom): {0}", RH_NameDomestic);
Console.WriteLine("Name (Exp): {0}", RH_NameExport);
Console.WriteLine("Region: {0}", RH_Region);
Console.WriteLine("Rom Size: {0,7} (${0:X})", RH_RomSize);
Console.WriteLine("SRAM Used: {0}", RH_SRamPresent);
if (RH_SRamPresent)
{
Console.WriteLine("SRAM Start: {0,7} (${0:X})", RH_SRamStart);
Console.WriteLine("SRAM End: {0,7} (${0:X})", RH_SRamEnd);
Console.WriteLine("SRAM Type: {0}", RH_SRamInterpretation());
}
}
}
}

33
BizHawk.Emulation/Consoles/Sega/Genesis/Cart/SaveRAM.cs Normal file
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using System;
namespace BizHawk.Emulation.Consoles.Sega
{
partial class Genesis
{
bool SaveRamEnabled = false;
int SaveRamStartOffset;
int SaveRamEndOffset;
int SaveRamLength;
byte[] SaveRAM = new byte[0];
void InitializeSaveRam(GameInfo game)
{
if (game["SaveRamOffset"])
{
SaveRamEnabled = true;
SaveRamStartOffset = game.GetHexValue("SaveRamOffset");
SaveRamLength = game.GetHexValue("SaveRamLength");
SaveRamEndOffset = SaveRamStartOffset + SaveRamLength;
SaveRAM = new byte[SaveRamLength];
}
}
public byte[] ReadSaveRam // TODO if you're going to rename this to ReadSaveRam, refactor it to be a method, not a property.
{
get { return SaveRAM; }
}
public bool SaveRamModified { get; set; }
}
}