> On Tue, Mar 03, 1998 at 07:04:35PM -0400, Bob Smith x31105 wrote:

> > for this beasty leaves me with the belief that I can't use ROM address
> > space for data?!?!  somebody tell me I'm blind and haven't read the
> > correct page!

> You're very nearly right; data tables on a mid-range PIC are implemented
> as RETLW tables, indexed by an addwf PCL. For example:

> table     addwf   pcl
>           retlw   1
>           retlw   2

Best set PCLATH too ie.:

table   movlw   HIGH table
        movwf   PCLATH
        addwf   pcl, f
        retlw   1
etc.

If you don't, and PCLATH doesn't point to the same 256 byte page
as the table, your program will be lost...

Now how did I find that out?

Orin.