internal uint ReadCUInt32()
        {
            byte code = ReadByte();
            switch (code & 0xE0)
            {
                case 0xE0:
                    return BitConverter.ToUInt32(ReadArray(4, true), 0);
                case 0xC0:
                    byte[] bt = ReadArray(3, true);
                    return BitConverter.ToUInt32(new byte[] { bt[2], bt[1], bt[0], code }, 0) & 0x1FFFFFFF;
                case 0x80:
                case 0xA0:
                    return (uint)(BitConverter.ToUInt16(new byte[] { ReadByte(), code }, 0) & 0x3FFF);
            }
            return (uint)code;
        }