lethin@wheaties.ai.mit.edu (Richard A. Lethin) (04/27/89)
A few weeks ago I posted a request for information about gate-level logic simulators which might be available for free, in source form. Below is a summary of responses received. (I also received an offer for the source to a proprietary simulator, with the caveat that it could not be shared with anyone outside MIT. Unfortunately, because we're working with Intel on this research project we couldn't accept it...) --- From: david lewis <lewis@eecg.toronto.edu> To: lethin@wheaties.ai.mit.edu Subject: Re: Seeking Gate-level simulator Date: Mon, 10 Apr 89 09:58:19 EDT I have a simulator that I developed here a while ago that does gate level and what you might call functional simulation. Its abstraction is node, more or less buses, so you can refer to a bunch of signals with a single name. This makes description of data paths concise. It allows you to mix logic equations with conventional net-list style stuff, and has a large set of boolean operators. I have been using it for 3 years, so it is reasonably bug free. It is only unit delay, and two state plus strength, so you can do tri-state TTL. You can have it if you'd like it. David Lewis Electrical Engineering University of Toronto From: david lewis <lewis@eecg.toronto.edu> To: lethin@wheaties.ai.mit.edu Subject: Re: Seeking Gate-level simulator Message-Id: <89Apr10.103839edt.2397@godzilla.eecg.toronto.edu> Date: Mon, 10 Apr 89 10:38:27 EDT BTW, this simulator, called tortle, has the advantage that it's pretty fast: 5-8K node events /sec, equivalent to 25-40K gate events per second, on a 3 MIP machine. A faster version, running at 10-90K node events / sec, is running but not yet in a distributable form. ------ Date: Mon, 10 Apr 89 22:46:27 CDT From: jps@wucs1.wustl.edu (James Sterbenz) To: lethin@wheaties.ai.mit.edu Subject: Re: Seeking Gate-level simulator There's a simulator called LSIM written by Roger Chamberlain, and modified to include MSI level functions by Mark Edelman, both of Washington University. Theres a tech report out on it; I don't know if it's being passed around in source form. If you're interested, send me e-mail, and I'll forward it to someone that can fill you in. ------ -- -- Rich lethin@wheaties.ai.mit.edu