Sorry, John. This wouldn't go.

if count starts out with any value other than 1 it will return 'value1'.

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

----- Original Message -----
From: "O'Reilly John E NORC" <OReillyJE@CORONA.NAVY.MIL>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Wednesday, May 30, 2001 2:20 PM
Subject: Re: [PIC]: A table question.


> Would this work?
>
>         comf            count,F
>         incfsz  count,F
>         retlw           value1
>         incfsz  count,F
>         retlw           value2
>         incfsz  count,F
>         retlw           value3
>         incfsz  count,F
>         retlw           value4
>         incfsz  count,F
>         retlw           value5
>         etc.
>
>
> John
>
> -----Original Message-----
> From: Bob Ammerman [mailto:RAMMERMAN@PRODIGY.NET]
> Sent: Wednesday, May 30, 2001 11:08 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC]: A table question.
>
>
> I knew it, I knew it...
>
> There _is_ a two instruction per entry technique!
>
>     movlw     value1^value2^value3
>     decfsz    count,F
>     xorlw       value1
>     decfsz    count,F
>     xorlw       value2
>     decfsz    count,F
>     xorlw       value3
>     etc.
>
> Notice what happens:
>
> If count == 1 on entry then all the xor's except value1 occur,
> leaving 'value1' in W.
>
> If count == 2 on entry then all the xor's except value2 occur,
> leaving 'value2' in W.
>
> If count == 3 on entry then all the xor's except value3 occur,
> leaving 'value3' in W.
>
> Bob Ammerman
> RAm Systems
> (contract development of high performance, high function, low-level
> software)
>
>
>
>
> ----- Original Message -----
> From: "Roman Black" <fastvid@EZY.NET.AU>
> To: <PICLIST@MITVMA.MIT.EDU>
> Sent: Wednesday, May 30, 2001 1:13 PM
> Subject: Re: [PIC]: A table question.
>
>
> > Bob Ammerman wrote:
> > >
> > > And why can't you use a normal ADDWF PCL,F table?
> >
> >
> > Wow! Everyone on the piclist is deaf tonight! ;o)
> >
> > It is a 12-core PIC, you can only put calls and
> > computed gotos on the bottom 256byte blocks. Those
> > are all full of other tables. I need a sane way
> > of adding a small table in another area (a high
> > block where tables are not possible). I can do it
> > with the 4:1 system I showed but that is very
> > unpolished. Surely someone has done this before?
> > :o)
> > -Roman
> >
> > --
> > http://www.piclist.com#nomail Going offline? Don't AutoReply us!
> > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body
> >
> >
>
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