public static CrtHeader FromBytes(byte[] data)
{
if (data.Length < 0x40)
{
throw new ArgumentOutOfRangeException(nameof(data), "Length is less than minimum .CRT header length.");
}
var h = new CrtHeader();
h.Identifier = Encoding.ASCII.GetString(data, 0, 0x10).Trim();
if (h.Identifier.ToUpper() != "C64 CARTRIDGE")
{
throw new FileFormatException(".CRT header identifier is not correct.");
}
h.Length = BitConverter.ToUInt32(data.Skip(0x10).Take(sizeof(UInt32)).Reverse().ToArray(), 0);
h.Version = BitConverter.ToUInt16(data.Skip(0x14).Take(sizeof(UInt16)).Reverse().ToArray(), 0);
h.HardwareType = (CrtHardwareType)BitConverter.ToUInt16(data.Skip(0x16).Take(sizeof(UInt16)).Reverse().ToArray(), 0);
h.ExRomLine = data[0x18];
h.GameLine = data[0x19];
h.Name = Encoding.ASCII.GetString(data, 0x20, 0x20).Trim('\0', ' ');
return(h);
}
public static CartridgeCrt FromBytes(byte[] data)
{
var crt = new CartridgeCrt {
Header = CrtHeader.FromBytes(data)
};
var offset = 0x40;
while (offset < data.Length)
{
var chip = CrtChip.FromBytes(data.Skip(offset).ToArray());
crt.Chips.Add(chip);
offset += (int)chip.ChipLength;
}
return(crt);
}
