Olin, you got it wrong and so did I ....

sigh....

The correct snippet is:

    movlw    PIN0
    andwf    PIN0,W
    skpz ---or--- snpnz as needed

Bob Ammerman
RAm Systems
(contract development of high performance, high function, low-level
software)

----- Original Message -----
From: "Olin Lathrop" <olin_piclist@EMBEDINC.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Monday, May 07, 2001 12:29 PM
Subject: Re: [PIC]:a newbie mpasm question


> > PIN0    EQU    B'00000001'
> > PIN1    EQU    B'00000010'
> > ;
> > MOVF        PIN0,W
>
> You want the value of PIN0 into W, not the contents of the location at
> address PIN0.  Use MOVLW PIN0.
>
> > XORWF      PORTA
>
> To avoid altering PORTA, you should append ", W".  This writes the result
of
> the XOR into W instead of PORTA.
>
> > BTFSS        STATUS,Z
>
>
> ********************************************************************
> Olin Lathrop, embedded systems consultant in Littleton Massachusetts
> (978) 742-9014, olin@embedinc.com, http://www.embedinc.com
>
> --
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>

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