I have a feeling you tried running Parallax assembler source through MPASM.
There are two options:
1) Go to Parallax (www.parallaxinc.com) and download their assembler. I'm
pretty sure it is free.

2) Find the program that converts Parallax to Microchip. Don't know if it
works-- I've never used it. I don't remember where I found it, but if you
need it, e-mail me and I'll e-mail it back privately so I won't incur the
wrath of the list :-)

Good Luck!

Al Williams
AWC
*Solderless Stamp and PIC Prototypes at http://www.al-williams.com/awce.htm

-----Original Message-----
From: Jason R Williamson <jrwill01@STARBASE.SPD.LOUISVILLE.EDU>
To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Date: Friday, February 06, 1998 10:38 PM
Subject: ds opcode?


>I was looking at some sample code on the web and when I tried
>to paste some of it into an existing program, I got errors
>saying "Illegal opcode (ds)".
>
>It looks to me like ds just reserves some space in memory for
>a variable.  I am using MPLAB to compile.
>
>Any clues as to what is wrong?
>
>Thanks for your help.
>
>Jason Williamson
>