[Magic-dev] Regarding exttospice command

[R. Timothy Edwards]

Dear Vineet,

> I am Vineet. I'll come straight to the topic. I would be
> grateful if anyone can give me any information on how the
> exttospice command exactly works. I need all the conversion
> formulae( their nature, use and description) used for
> converting from .ext to spice. I would be grateful if i can
> get any information on the same.

Some of the more innovative aspects of magic were written up
into publicly available documents.  But, netlist format
conversion was apparently too pedestrian to merit a paper.
So you'll be stuck, like the rest of us, figuring out the
algorithms from the source code.

The source code for "netgen" (available from my website at
http://bach.ece.jhu.edu/~tim/programs/magic/magic7_3.html
(I haven't yet made a separate web page for it, though I
should)) also has code that converts .ext format to an
internal format and thence to SPICE.  Magic's is a more
direct conversion, but plugs into all of magic's internal
subroutines, which can be difficult to navigate.

				Regards,
				Tim
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