[ng-spice] ACS, model compiler, cross-post from gEDA list (fwd)


To ng-spice-devel@ieee.ing.uniroma1.it
From Paolo Nenzi <pnenzi@ieee.ing.uniroma1.it>
Date Fri, 8 Sep 2000 08:00:04 +0200 (CEST)
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What about that ?



 
---------- Forwarded message ----------
Date: Thu, 07 Sep 2000 20:30:15 GMT
From: James Swonger <jwsrh@hotmail.com>
Reply-To: ng-spice@ieee.ing.uniroma1.it
To: ng-spice@ieee.ing.uniroma1.it
Subject: [ng-spice] ACS, model compiler, cross-post from gEDA list

This message below is sort of directed at the active
ng-spice developers, thought I'd put it directly to the
list....




From:
         Al Davis <aldavis@ieee.org>
Reply-To:
         geda-dev@geda.seul.org
To:
         geda-dev@geda.seul.org
Subject:
         Re: gEDA: New release of ACS
Date:
         Wed, 6 Sep 2000 15:57:11 -0700


Regarding the BJT model ......
On Wed, 06 Sep 2000, mcmahill@mtl.mit.edu wrote:
>cool.  do you have a particular model in mind for it?  (GP, mextram, etc)

The first one will be the one in Spice.

The real plan is to complete the model compiler, then translate the
model code to its input language.  This is much easier than
translating it directly to what the simulator wants, and it allows
the simulator to evolve without the need to change all of the models.
Then there could be LOTS of models.

Another benefit of the model compiler is that using the same front
end and a different back end, it could generate code for a different
simulator with a completely different architecture, using the same
source.

With this in mind, I would like to ask an open question, directed
primarily at those involved with NG-SPICE:  Are you interested in
participating in this, by developing a back-end for my model compiler
that would generate NG-SPICE code from the same source?  You could
also influence the input language a bit, in hopes of making it more
simulator-neutral.  This would create a powerful tool for model
developers that goes way beyond what is available commercially.
Ultimately, I would like to make something like this become the
standard for model implementation, with compilers that generate
native code for all simulators that care to participate.

al.
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