public static void Write(Stream sw)
{
uint[] crc = new uint[2];
byte[] data = new byte[0x00101000];
uint t1, t2, t3, t4, t5, t6 = 0xDF26F436;
t1 = t2 = t3 = t4 = t5 = t6;
sw.Position = 0;
sw.Read(data, 0, 0x00101000);
for (int i = 0x00001000; i < 0x00101000; i += 4)
{
uint d = (uint)((data[i] << 24) | (data[i + 1] << 16) | (data[i + 2] << 8) | data[i + 3]);
if ((t6 + d) < t6)
{
t4++;
}
t6 += d;
t3 ^= d;
uint r = (d << (int)(d & 0x1F)) | (d >> (32 - (int)(d & 0x1F)));
t5 += r;
if (t2 > d)
{
t2 ^= r;
}
else
{
t2 ^= t6 ^ d;
}
t1 += (uint)((data[0x0750 + (i & 0xFF)] << 24) | (data[0x0751 + (i & 0xFF)] << 16) |
(data[0x0752 + (i & 0xFF)] << 8) | data[0x0753 + (i & 0xFF)]) ^ d;
}
crc[0] = t6 ^ t4 ^ t3;
crc[1] = t5 ^ t2 ^ t1;
if (BitConverter.IsLittleEndian)
{
crc[0] = Endian.ConvertUInt32(crc[0]);
crc[1] = Endian.ConvertUInt32(crc[1]);
}
//Seek to 0x10 from rom start
sw.Position = 0x10;
sw.Write(BitConverter.GetBytes(crc[0]), 0, sizeof(uint));
sw.Write(BitConverter.GetBytes(crc[1]), 0, sizeof(uint));
}
public static UInt32 ReadBigUInt32(this BinaryReader b)
{
return(Endian.ConvertUInt32(b.ReadUInt32()));
}
public static void WriteBig(this BinaryWriter bw, uint v)
{
bw.Write(Endian.ConvertUInt32(v));
}