On Sat, 15 Jun 2002, Peter L. Peres wrote:

> Hi,
>
> I need to make a modulo 3 counter in a file. I've come up with this code:
>
>   movlw 0x03
>   andwf File,w  ;
>
>   xorlw 0x03    ; 11 -> 00
>   btfss STATUS,Z
>   xorlw 0x03    ; undo xorlw above
>
>   movwf File
>
> I actually need the movwf at the end to be like this because I have to add
> in some flags. Surely there is a MUCH shorter way to do this ...
>
> Peter
>
> PS: The code has to be constant run time


    how 'bout

    rrf    File,w
    andwf  File,w
    andlw  1
    addwf  File,f

Scott

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu