private ulong CreateTableEntry(int index)
{
ulong r = (ulong)index;
if (Parameters.RefIn)
{
r = CrcHelper.ReverseBits(r, HashSize);
}
else if (HashSize > 8)
{
r <<= (HashSize - 8);
}
ulong lastBit = (1ul << (HashSize - 1));
for (int i = 0; i < 8; i++)
{
if ((r & lastBit) != 0)
{
r = ((r << 1) ^ Parameters.Poly);
}
else
{
r <<= 1;
}
}
if (Parameters.RefIn)
{
r = CrcHelper.ReverseBits(r, HashSize);
}
return(r & _mask);
}
public override void Initialize()
{
_currentValue = Parameters.RefOut ? CrcHelper.ReverseBits(Parameters.Init, HashSize) : Parameters.Init;
}