Paul & Lynn Tyrer wrote:
> How do I :
> Create a place to store the count.

count    res     1           ;individual events counter

You'll need this later too:

gallon   res     4           ;32 bit total gallons
         global  gallon

> Increment 1 to this count when the state changes

         banksel count
         incf    count       ;count one more event

> compare the stored count so when it equals 50 I increment the lcd by 1

         movf    count, w    ;get the raw count
         sublw   49          ;compare to threshold
         skip_wgt            ;got another whole gallon ?
         jump    done_gallon ;no
         ;
         ;   One more whole gallon detected.
         ;
         clrf    count       ;reset counts until next gallon
         movlw   1           ;count one more gallon
         addwf   gallon+0
         skip_ncarr
         addwf   gallon+1
         skip_ncarr
         addwf   gallon+2
         skip_ncarr
         addwf   gallon+3
         gcall   disp_gallon ;display the new gallons value
done_gallon

SKIP_WGT, SKIP_NCARR, and GCALL are wrapper macros I use to make the code
the code more readable, less tedious, and less error prone.  You can
probably guess from context what they do.


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