public void ClockBit(bool state)
{
Bits.Add(state);
/* every codeword */
if (Bits.Count >= 32)
{
/* only keep last 32 bits */
Bits.RemoveRange(0, Bits.Count - 32);
bool[] bits = (bool[])Bits.ToArray(typeof(bool));
long codeWord = ByteUtil.BitsToLong(bits);
if (Synchronized && !CorrectChecksum(bits))
{
if (++ParityErrors > ParityErrorsMax)
{
Log.AddMessage("Parity error, lost synchronization.");
Synchronized = false;
}
}
else
{
ParityErrors = 0;
if (codeWord == POCSAG_SYNC || codeWord == POCSAG_SYNCINFO)
{
if (!Synchronized)
{
Log.AddMessage("Synchronized...");
}
Synchronized = true;
BatchPosition = 0;
Bits.Clear();
}
else if (Synchronized)
{
if (codeWord == POCSAG_IDLE)
{
//Log.AddMessage("Idle");
DumpMessage();
}
else
{
if (!bits[0])
{
DumpMessage();
/* address */
//Log.AddMessage("Address");
Address = (uint)(codeWord >> 13) & 0x3FFF;
Address <<= 3;
Address |= (uint)BatchPosition >> 1;
Mode = (uint)(codeWord >> 11) & 0x03;
}
else
{
/* message bits */
//Log.AddMessage("Message");
MessageBits.AddRange(Bits.GetRange(1, 20));
}
}
Bits.Clear();
BatchPosition++;
}
}
}
}
