public UInt64 PeekUInt64()
{
NetException.Assert(m_bitLength - m_readPosition >= 64, c_readOverflowError);
ulong low = NetBitWriter.ReadUInt32(m_data, 32, m_readPosition);
ulong high = NetBitWriter.ReadUInt32(m_data, 32, m_readPosition + 32);
ulong retval = low + (high << 32);
return retval;
}