[SI-LIST] Re: Different Spice netlists

I can't hold back from mentioning here that even the syntax of simple
passive elements can be drastically different in various SPICE
flavors.  For example, in HSPICE you can describe a resistor like
this:

R1 node1 node2 R=3D'V(node100, node101) * I(another_element_name)...'

In Berkeley SPICE you can only provide a fixed number, can't even
write R=3D50, you can just write the number by itself.  And you can't
have a variable name (parameter) that represents that number either,
everything must be fixed (hard coded).  That is not much fun, unless
you write your own scripts that overcome these limitations and
generate new netlists for every iteration of a parametric sweep.

Arpad Muranyi
Intel Corporation
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

-----Original Message-----
From: Ingraham, Andrew [mailto:Andrew.Ingraham@xxxxxx]
Sent: Friday, January 31, 2003 12:04 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Different Spice netlists


It is USUALLY the case that you can go from Berkeley SPICE to another
SPICE.  That is, a netlist that was written for a "generic" SPICE, often
can run with no modification on a commercial SPICE program.

But as Fred Balistreri says, controlled sources often differ.  This is
true even between one "generic" Berkeley SPICE and another.  SPICE3
dramatically changed the format of controlled sources, and Berkeley
wrote application notes about converting a SPICE2 netlist to run under
SPICE3.

Nodenames also differ.  SPICE2 had only numeric nodenames.  Many other
SPICE programs allow non-numeric nodenames, perhaps in different ways.

Regards,
Andy
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