Hi,

After having seen the amazing results from other code challenges
I thought I would try putting one out there myself.

The goal is to have a routine that increments and keeps track of
time in a BCD format.

Points are scored as follows:
        1 point for each ROM location used.
        3 for each RAM.

My code scores 43 points. Best score is the lowest.
Haven't tested it yet so I dont know if it works or not.


ICKIncClock
        incfsz  ICKseconds,f            ;do seconds
        goto    ICKDone
        movlw   d'195'
        movwf   ICKseconds

        incf    ICKmin,f                ;do minutes
        movlw   b'00001111'
        andwf   ICKmin,w                ;mask upper nibble.
        xorlw   d'10'                   ;minLSD at 10?
        SKPZ
        goto    ICKDone
        movlw   b'11110000'
        andwf   ICKmin,f                ;set lower nibble to
zero.

        movlw   b'00010000'
        addwf   ICKmin,f                ;inc upper nibble
        movlw   d'60'
        xorwf   ICKmin,w                ;ran out of minutes?
        SKPZ
        goto    ICKDone
        clrf    ICKmin

        incf    ICKhours                ;now do hours
        movlw   b'00001111'
        andwf   ICKhours,w              ;mask upper nibble
        xorlw   d'10'
        SKPZ
        goto    ICKDone
        movlw   b'11110000'
        andwf   ICKhours,f              ;clear LSD
        movlw   b'00010000'
        addwf   ICKhours,f              ;inc upper nibble
        movlw   d'24'
        xorwf   ICKhours,w              ;at the last hour?
        SKPNZ
        clrf    ICKhours

ICKDone
        retlw   0