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- Path: sparky!uunet!olivea!decwrl!csus.edu!netcomsv!mork!mleblanc
- From: mleblanc@netcom.com (Marcel A. LeBlanc)
- Newsgroups: comp.os.os2.apps
- Subject: Berkeley SPICE 2G.6 circuit simulator now at HOBBES!
- Summary: spice for OS/2 2.0 at hobbes
- Keywords: spice, berkeley, os2
- Message-ID: <l3qmqcb.mleblanc@netcom.com>
- Date: 31 Jul 92 19:03:14 GMT
- Organization: Netcom - Online Communication Services (408 241-9760 guest)
- Lines: 70
-
-
- I just put it in "pub/downloads/spice2g6.zoo" at ftp-os2.nmsu.edu! I wasn't
- expecting the flood or replies that I received. :) For those who have
- access to NETCOM.COM, the archive can also be found in
- "/usr/hack/ftp/tmp/mleblanc/spice2g6.zoo" for at least a few days.
-
- Here's the README file:
- ----------------------------------------------------------------------
- This is a port of SPICE 2G.6 to OS/2 2.0. The following lines are
- extracted from the source file spice.f:
-
- C
- C
- C SPICE VERSION 2G.6 SCCSID=root.ma 3/15/83
- C
- C SPICE IS AN ELECTRONIC CIRCUIT SIMULATION PROGRAM THAT WAS DEVE-
- C LOPED BY THE INTEGRATED CIRCUITS GROUP OF THE ELECTRONICS RESEARCH
- C LABORATORY AND THE DEPARTMENT OF ELECTRICAL ENGINEERING AND COMPUTER
- C SCIENCES AT THE UNIVERSITY OF CALIFORNIA, BERKELEY, CALIFORNIA. THE
- C PROGRAM SPICE IS AVAILABLE FREE OF CHARGE TO ANY INTERESTED PARTY.
- C THE SALE, RESALE, OR USE OF THIS PROGRAM FOR PROFIT WITHOUT THE
- C EXPRESS WRITTEN CONSENT OF THE DEPARTMENT OF ELECTRICAL ENGINEERING
- C AND COMPUTER SCIENCES, UNIVERSITY OF CALIFORNIA, BERKELEY, CALIFORNIA,
- C IS FORBIDDEN.
- C
-
- This "port" was made exceptionally simple thanks to the EMX GCC compiler
- and F2C, the Fortran to C translation utility. I've only been using it
- for a few days, but so far there are no signs of problems.
-
- To use spice with OS/2 2.0, just place "spice.exe" in some directory listed
- in your PATH variable, and "emx.dll" in some directory listed in your LIBPATH
- variable (but only if it's newer than your current emx.dll!).
-
- To run spice, just type:
-
- spice < infile > outfile
-
- For some reason, all numbers are output in the form 0.12345-006 instead
- of the usual form 0.12345E-006 (Is this normal for Fortran?). If you
- prefer the latter form, get a copy of 'sed' (it's available at hobbes),
- and do:
-
- spice < infile | sed "s/\([0-9]\)\([-+][0-9]\)/\1E\2/g" > outfile
-
- If you would like to use symbolic node names (like in HSPICE) send me
- some mail asking for "spices", my symbolic node name pre-processor.
-
- If anybody's interested, I have also written an implementation of a
- genetic algorithm (described in the July 1992 issue of Scientific
- American) for automatic optimization of circuits using SPICE 2G.6 .
-
- This port is a FULL version. I didn't have to scale down anything to
- get it to work. Using the automatic optimization program that I
- mentioned above, I've run over 10000 spice simulations (in 2 days!) of a
- simple, 6-transistor circuit. With level 3 models each simulation takes
- about 9 seconds on my 486/33.
-
- Judging from the benchmark results given in the circuits/ directory, my
- 486/33 seems to be comparable in speed to a MIPS M/800, or about 10x the
- speed of a VAX 11/780. For those who are interested, I used "f2c -A -E",
- followed by "gcc -O2" (the emx 0.8d version) to do the compilation from
- Berkeley Fortran sources.
-
- If you manage to do some novel things with spice, please send me some mail!
- Any comments are welcome!
-
- Marcel LeBlanc
- mleblanc@netcom.com
- (or leblanc@eecg.toronto.edu)
-