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'Newbie questions....'
1996\05\24@004116 by Tom Messenger

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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
spam_OUTkmessengTakeThisOuTspamslonet.org
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1996\05\24@042142 by fastfwd

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Tom Messenger <.....PICLISTKILLspamspam@spam@MITVMA.MIT.EDU> wrote:

> 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?

   Tom:

   I'll answer the second question first:  No.

   Now the first question:  There's at least one program that will
   do the conversion, but especially since you're trying to learn
   about the PIC, you might find it more helpful to perform the
   conversion yourself; doing so will teach you a lot about how the
   PIC works.

   Parallax's assembler documentation includes a table of Parallax
   "instructions" and their native equivalents; by refering to that
   table, you should be able to do the conversion pretty quickly.

> 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!

   Anyone who's been on this list or the Microchip BBS for any
   length of time already knows how I feel about Parallax's
   assembler, so I won't bore everyone by going into my usual rant
   here [if you're interested, Tom, send me some e-mail and I'll
   tell you all about it], but I think it's clear that MPLAB is a
   superior-enough tool that it makes sense to standardize on the
   native PIC instruction set.

   Here's an idea:  Convince your tutor to learn the native
   instruction set.  In the long run, he'll thank you.

   -Andy

Andrew Warren - fastfwdspamKILLspamix.netcom.com
Fast Forward Engineering, Vista, California
http://www.geocities.com/SiliconValley/2499

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