At 04:14 PM 2/18/97 -0500, you wrote:
>I managed to get my program coded and fed it into the MAPLAB for
simulation.  Things started branching about erratically and I went back to
the books to read about the PCL, PCLATH and page boundaries.  I also read
AN556, "Implementing a Table Read".

This is the one reason that the Parallax assembler is a little better then
Microchip's.

>What confuses me is that the GOTO Asub in the 'dest' table worked without
any problems...  and it is not in the same 8 bit page of memory either...

But if you _know_ the state of the PCLAT bits, you don't need to change
them.  It is not uncommon to have something of the like:

        org     200h
Rtn1
        ...
        return

        org     400h
; set bits appropriately using Parallax's lcall
        lcall   Rtn1
        movwf   temp1
        call    Rtn1
        movwf   temp1
        ljmp    Rtn2            ; set bits back to this page to continue
processing.
        ...

Rtn2    ...

Once the bits have been set, they remain set until you change them.  The
full 13-bit PC was stored on the call, but the return does NOT change them
back to what you think they were before.

>PS: Every time I send mail to the PICLIST, the mail bounces back as
undeliverable and I never see a copy of the messages I post come back from
the mailing list.  However my posts appear to be going out because I see the
responses coming back to the mailing list.  Is this normal ???

I get the message for my postings as well, and they always come from
Administrator at Microchip.com, addressed to some woman there.

My guess is that her e-mail address changed, and the list tries to send her
a message, but because her account was deleted, the unix machine just sends
you a message to let you know.

Parallax has a neat "Boing" utility to delete these automatically.  Perhaps
they can be persuaded to share it with the rest of the net world.

Andy
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Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865
          Hardware & Software for Industry & R/C Hobbies
        "Go fast, turn right, and keep the wet side down!"
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