On Thu, Aug 10, 2006 at 10:09:13AM +0100, Steve Smith wrote:
> Guys;
> Is there an easy way of doing the following??
> 
> (16F877)
> 
> Movlw	(variable 0-7)
> 
> Bsf	register,W
> 
> Or 
> 
> Btfsc	register,W
> 
> Specifically for addressing various pins depending on the result of a test 

Nope. I had to implement such an operation for my NPCI interpreter. I ended up
with a jump table that set the bit then returned. Let me see if I can fish out
the code right quick...

Here's a snippet:

        movf    command,W       ; Get the value, already shifted 1 bit to the left.
        addwf   PCL,F           ; Computed goto to change the correct bit

        bcf     INDF,0          ; Clear bit 0
        return                  ; All done.

        bcf     INDF,1          ; Clear bit 1
        return                  ; All done.

        bcf     INDF,2          ; Clear bit 2
        return                  ; All done.

        bcf     INDF,3          ; Clear bit 3
        return                  ; All done.

        bcf     INDF,4          ; Clear bit 4
        return                  ; All done.

Hope this helps,

BAJ
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