public static byte[] BuildHeader(RomInfo ri, byte[] startCode)
{
var header = new int[0x50];
if(startCode.Length > 4)
throw new ArgumentException("The startCode can be at most 4 bytes long!");
header[0x43] = ri.IsColor ? 0x80 : 0;
header[0x44] = ri.LicenseeCode >> 8;
header[0x45] = ri.LicenseeCode & 0xFF;
header[0x46] = ri.IsSuperGb ? 3 : 0;
header[0x47] = ri.CartridgeInfo.GetCode();
header[0x48] = ri.RomSize.GetCode();
header[0x49] = ri.RamSize.GetCode();
header[0x4A] = ri.Japanese ? 0 : 1;
header[0x4B] = ri.OldLincenseeCode;
header[0x4C] = ri.MaskRomVersionNumber;
header[0x4D] = ri.ComplementCheck;
header[0x4E] = ri.Checksum >> 8;
header[0x4F] = ri.Checksum & 0xFF;
var byteHeader = header.Select(i => (byte)i).ToArray();
Array.Copy(startCode, byteHeader, startCode.Length.Max(4));
Array.Copy(ri.NintendoGraphic, 0, byteHeader, 0x04, 48);
Array.Copy(ri.RomName.PadRight(14, '\0').Select(c => (byte)(int)c).ToArray(), 0, byteHeader, 0x34, 14);
return byteHeader;
}
public GameBoy(byte[] rom)
{
var romInfo = new RomInfo(rom);
Rom = romInfo.Rom;
Mmu = new MemoryManagementUnit(romInfo, Timer);
Init();
}
public static byte[] BuildHeader(RomInfo ri, byte[] startCode)
{
var header = new int[0x50];
if (startCode.Length > 4)
{
throw new ArgumentException("The startCode can be at most 4 bytes long!");
}
header[0x43] = ri.IsColor ? 0x80 : 0;
header[0x44] = ri.LicenseeCode >> 8;
header[0x45] = ri.LicenseeCode & 0xFF;
header[0x46] = ri.IsSuperGb ? 3 : 0;
header[0x47] = ri.CartridgeInfo.GetCode();
header[0x48] = ri.RomSize.GetCode();
header[0x49] = ri.RamSize.GetCode();
header[0x4A] = ri.Japanese ? 0 : 1;
header[0x4B] = ri.OldLincenseeCode;
header[0x4C] = ri.MaskRomVersionNumber;
header[0x4D] = ri.ComplementCheck;
header[0x4E] = ri.Checksum >> 8;
header[0x4F] = ri.Checksum & 0xFF;
var byteHeader = header.Select(i => (byte)i).ToArray();
Array.Copy(startCode, byteHeader, startCode.Length.Max(4));
Array.Copy(ri.NintendoGraphic, 0, byteHeader, 0x04, 48);
Array.Copy(ri.RomName.PadRight(14, '\0').Select(c => (byte)(int)c).ToArray(), 0, byteHeader, 0x34, 14);
return(byteHeader);
}
public static byte[] BuildRom(RomInfo ri, byte[] jumptable, byte[] inttable, byte[] header, byte[] code)
{
var rom = new byte[ri.RomSize.Size];
Array.Copy(jumptable, 0, rom, 0x00, jumptable.Length.Max(0x40));
Array.Copy(inttable, 0, rom, 0x40, inttable.Length.Max(0x28));
Array.Copy(header, 0, rom, 0x100, header.Length.Max(0x4F));
Array.Copy(code, 0, rom, 0x150, code.Length.Max(rom.Length - 0x150));
return rom;
}
public static byte[] BuildRom(RomInfo ri, byte[] jumptable, byte[] inttable, byte[] header, byte[] code)
{
var rom = new byte[ri.RomSize.Size];
Array.Copy(jumptable, 0, rom, 0x00, jumptable.Length.Max(0x40));
Array.Copy(inttable, 0, rom, 0x40, inttable.Length.Max(0x28));
Array.Copy(header, 0, rom, 0x100, header.Length.Max(0x4F));
Array.Copy(code, 0, rom, 0x150, code.Length.Max(rom.Length - 0x150));
return(rom);
}
public MemoryBankController(RomInfo romInfo)
{
ri = romInfo;
Eram = new byte[romInfo.RamSize.Size];
Wram = new byte[0x1FFF];
Zram = new byte[128];
Rombank = 0;
RamBank = 0;
ExternalRamOn = false;
Mode = MemoryMode.M16_8;
}
public Mbc2(RomInfo romInfo)
: base(romInfo)
{
Eram = new byte[512 * 4];
}
public static RomInfo GetRomInfo(string[] metadataSection)
{
const string rbool = @"\s*=\s*(true|false)";
const string rbyte = @"\s*=\s*([\dA-F]{1,2})";
const string rushort = @"\s*=\s*([\dA-F]{1,4})"; // No, I'm quite tall
var dataRegexs = new[]
{
@"name\s*=\s*([ -~]+)", @"cartType" + rbyte,
@"color" + rbool, @"licenseeCode" + rushort,
@"superGb" + rbool, @"romSize" + rbyte,
@"ramSize" + rbyte, @"japanese" + rbool,
@"oldLicenseeCode" + rbyte
}.ToDictionary(s => s.Split('\\')[0], s => new Regex(s));
var data = dataRegexs.ToDictionary(kvp => kvp.Key, kvp => "");
foreach (string s in metadataSection)
foreach (var kvp in dataRegexs)
if (data[kvp.Key] == "" && kvp.Value.IsMatch(s))
data[kvp.Key] = kvp.Value.Match(s).Groups[1].Value;
var ri = new RomInfo();
foreach (var kvp in data.Where(kvp => kvp.Value != ""))
switch (kvp.Key)
{
case "name":
ri.RomName = kvp.Value;
break;
case "cartType":
ri.CartridgeInfo = new CartridgeInfo(Convert.ToByte(kvp.Value, 16));
break;
case "color":
ri.IsColor = Convert.ToBoolean(kvp.Value);
break;
case "licenseeCode":
ri.LicenseeCode = Convert.ToUInt16(kvp.Value, 16);
break;
case "superGb":
ri.IsSuperGb = Convert.ToBoolean(kvp.Value);
break;
case "romSize":
ri.RomSize = new RomSize(Convert.ToByte(kvp.Value, 16));
break;
case "ramSize":
ri.RamSize = new RamSize(Convert.ToByte(kvp.Value, 16));
break;
case "japanese":
ri.Japanese = Convert.ToBoolean(kvp.Value);
break;
case "oldLicenseeCode":
ri.OldLincenseeCode = Convert.ToByte(kvp.Value);
break;
}
return ri;
}
public Mbc5(RomInfo romInfo)
: base(romInfo)
{
}
public MbcRumble(RomInfo romInfo)
: base(romInfo)
{
}
public static MemoryBankController Factory(RomInfo ri)
{
switch(ri.CartridgeInfo.MbcType)
{
case MbcType.Mbc1:
return new Mbc1(ri);
case MbcType.Mbc2:
return new Mbc2(ri);
case MbcType.Mbc3:
return new Mbc3(ri);
case MbcType.Mbc5:
return new Mbc5(ri);
case MbcType.Rumble:
return new MbcRumble(ri);
}
throw new NotSupportedException("MbcType: " + ri.CartridgeInfo.MbcType + " is not yet supported.");
}