public static int ByteswapROM(string filename)
{
using (BinaryReader ROM = new BinaryReader(File.Open(filename, FileMode.Open)))
{
if (ROM.BaseStream.Length % 4 != 0)
{
return(-1);
}
byte[] buffer = new byte[4];
ROM.Read(buffer, 0, 4);
// very hacky
ROM.BaseStream.Seek(0, 0);
if (buffer[0] == 0x80)
{
return(1);
}
else if (buffer[1] == 0x80)
{
using (BinaryWriter newROM = new BinaryWriter(File.Open(filename + ".z64", FileMode.Create)))
{
while (ROM.BaseStream.Position < ROM.BaseStream.Length)
{
newROM.Write(ReadWriteUtils.Byteswap16(ReadWriteUtils.ReadU16(ROM)));
}
}
return(0);
}
else if (buffer[3] == 0x80)
{
using (BinaryWriter newROM = new BinaryWriter(File.Open(filename + ".z64", FileMode.Create)))
{
while (ROM.BaseStream.Position < ROM.BaseStream.Length)
{
newROM.Write(ReadWriteUtils.Byteswap32(ReadWriteUtils.ReadU32(ROM)));
}
}
return(0);
}
}
return(-1);
}
