select_seq:
    movf    seq,W
    addwf    PCL,F
    goto     seq1
    goto     seq2
    goto     seq3

The individual 'seqN' routines end up RETURNing for select_seq.

Bob Ammerman
RAm Systems


----- Original Message -----
From: "Andrei B." <andrixnet@YAHOO.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Wednesday, February 13, 2002 4:03 AM
Subject: Re: [PIC]:Program memory subroutine tables


> --- Claudio Tagliola <cptagliola@CHELLO.NL> wrote:
> > Yes. Use retlw. Watch out for program memory page breaks though. I'm
> > not
> > 100% shure you can use addwf on PCL, but some of the others will
> > point
> > that out if not.
>
> seq1, seq2, seq3 are program memory pointers, larger then the 8bit wide
> w. They represent locations of subroutines one of which I have to call
> depending on the value of variable seq.
>
>
> > -a sequence variable held which sequence the PIC should play then :
> >
> > select_seq:            ; subroutine
> >  bcf STATUS, C
> >  rlf seq, w
> >  addwf PCL, f
> >  call seq1
> >  return
> >  call seq2
> >  return
> >  call seq3
> >  return
> > ...
> >
> > Is there a more compact way to do something like this? (less program
> > memory used? Here I need 2*sequences for this).
>
>
> =====
> ing. Andrei Boros
> Centrul pt. Tehnologia Informatiei
> Societatea Romana de Radiodifuziune
>
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