BNZ is probably a macro used by Andrew.

Just translate:

    BNZ xxxx

To:

    SKPZ
    GOTO    xxxx

Where SKPZ is a pseudomnemonic for:

    BTFSS    STATUS,Z

Bob Ammerman
RAm Systems

----- Original Message -----
From: "Michael Johnston" <stoney@KINGWOODCABLE.NET>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Wednesday, May 08, 2002 11:57 PM
Subject: Re: a 16c54 clock desigin.


> Andrew
> thanks for the code i tried this but ive ran into some problems for one
> thing is the bnz mnemonic usable with the c54 parts
> Michael Johnston
> ----- Original Message -----
> From: "Andrew Warren" <aiw@CYPRESS.COM>
> To: <PICLIST@MITVMA.MIT.EDU>
> Sent: Wednesday, May 08, 2002 6:29 PM
> Subject: Re: a 16c54 clock desigin.
>
>
> > Michael Johnston <PICLIST@mitvma.mit.edu> wrote:
> >
> > > i am couting a 60hz at ra3 in a 16c54. I am simulating this for
> > > right now. My problem is that i count this pulse and then it is
> > > suppose to increment a counter. Which it is doing fine but when i
> > > get to 60 this timer is supposed to reset to zero and increnment
> > > another counter.this next counter is supposed to count up to 60
> > > also. then it is supposed to increment a third counter which is
> > > supposed to count up to 12 then reset to one but instead of doing
> > > that it just increments the all three counters and keeps going up
> > > to 255.then it resets.
> >
> > Mike:
> >
> >     WAITFORLO:
> >         BTFSC   PORTA,3
> >         GOTO    WAITFORLO
> >
> >     WAITFORHI:
> >         BTFSS   PORTA,3
> >         GOTO    WAITFORHI
> >
> >     ; At this point, we've just seen a rising edge on the 60Hz input.
> >
> >         INCF    SIXTIETHS    ;Increment the 1/60-second counter.
> >         MOVLW   60           ;Compare it to 60.
> >         XORWF   SIXTIETHS,W  ;
> >         BNZ     DONE         ;If it hasn't reached 60 yet, exit.
> >
> >         MOVWF   SIXTIETHS    ;Otherwise, reset the counter to 0.
> >
> >         INCF    SECONDS      ;Increment the seconds counter.
> >         MOVLW   60           ;Compare it to 60.
> >         XORWF   SECONDS,W    ;
> >         BNZ     DONE         ; etc....
> >
> >         MOVWF   SECONDS
> >
> >         INCF    MINUTES
> >         MOVLW   60
> >         XORWF   MINUTES,W
> >         BNZ     DONE
> >
> >         MOVWF   MINUTES
> >
> >         INCF    HOURS
> >         MOVLW   12
> >         XORWF   HOURS,W
> >         BNZ     DONE
> >
> >         MOVLW   1
> >         MOVWF   HOURS
> >
> >     DONE:
> >
> > -Andrew
> >
> > === Andrew Warren -- aiw@cypress.com
> > === Principal Design Engineer
> > === Cypress Semiconductor Corporation
> > ===
> > === Opinions expressed above do not
> > === necessarily represent those of
> > === Cypress Semiconductor Corporation
> >
> > --
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> >
>
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