Dario Greggio wrote:
> Nice indeed! I'd use a 18F PIC though, and C language.

The whole program is in C, I've written less than 50 lines of assembler 
in my entire life.

What's the benefits of using a 18F over a 16F?

My program runs in the following eternal loop:

    for(;;)
    {
        ColI i = GetRawPushButtonInput();    /* Check to see if a button 
is pressed */

        DisplayScan();   /* Flash the display multiplexer */
             
        if (BAD_COL != i)    /* If a button is actually held down */
        {
            if ( !ProposePlacement(i) ) continue; /* Check if column is 
empty, and if so place a chip */

            IncrementAndUpdateSegs();   /* Increment the number shown on 
the seven seg displays */
           
            CheckForConnection();  /* Check to see if we've achieved 
Connect 4 */
           
            if ( CheckIfConnectionValid() ) IndicateGameWon();  /* Game 
is finished, this function doesn't return */
           
            ProgressNextPlayer();  /* Move on to the next player's go */
        }
    }

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