I subscribed to this list just three days ago and it already looks to be one of the more informative discussion lists I have found. Last week, I wrote my first ever assembly language program. It makes a pic chip flash leds like a dot-matrix printhead. Only instead of paper, you use your eyeballs for the message. Persistance of vision creates the image as the leds are moved. A friend helped me get started and since he prefers Parallax mnemonics, that is what I started with. First question: are there any programs out there to change Parallax to Microchip mnemonics? Second question: is there any way to get the MPLAB-SIM to use Parallax listings? Since my tutor uses Parallax and the MPLAB uses Microchip, I don't want to have to learn two sets of opcodes. Any light that anyone can shed on this subject will be appreciated. Thanks! -------------------------------- Tom Messenger, Los Osos, California, USA kmesseng@slonet.org --------------------------------