Andrew Warren wrote:

> ------- Forwarded Message Follows -------
>
> From:          John Payson <supercat@Mcs.Net>
> To:            fastfwd@ix.netcom.com
> > From:          Dmitry Kiryashov <zews@aha.ru>
> > ;       Minimizing ... Final pass .
> > ;
> >  movlw  $01
> >  btfsc  BITNUM,1
> >  movlw  $04
> >  movwf  temp
> >
> >  btfsc  BITNUM,0
> >  addwf  temp,f
>
> Ah... good way to do the conditional shift without worrying about
> carry flag. Cool.
> >
> >  btfsc  BITNUM,2
> >  swapf  temp,f
> >
> >  movfw  temp
> >
> > ;       9 words / 9 cycles
> That's a savings.  Probably makes it as good as the table
> for many applications.


It seems to be shortest possible solution due to optimal combination
in using W and additional register . After I have spend some time
I find few anothers but all them have equal or greater code length .

The second advantage of this method is saving of initial BITNUM value .

WBR Dmitry .