Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!watmath!clyde!floyd!harpo!decvax!mcnc!rti!will From: will@rti.UUCP Newsgroups: net.lsi Subject: we need an updated esim Message-ID: <1153@rti.UUCP> Date: Mon, 19-Mar-84 15:47:28 EST Article-I.D.: rti.1153 Posted: Mon Mar 19 15:47:28 1984 Date-Received: Tue, 20-Mar-84 05:59:58 EST Lines: 39 I'm EXTREMELY sorry to have posted this to a non-existent newsgroup, but I swear 'net.vlsi' was listed in our ngfile. Anyway, here goes again (in the right newsgroup this time (I hope)). Here at RTI, we do a lot of circuit extraction and simulation of CIF format files using the Berkeley CAD tool software (caesar, mextra, esim, and the like). We've run into a problem with esim: it doesn't simulate this three- transistor XNOR gate correctly in all cases. This is the circuit: o Vdd | ---- ----| | n-depletion | ---- |--------O--------------- output | input ----o------ --------------|------------- -----o---- input 2 1 | |___| |___| | | --- --- | | | | | | |______________________________|______| |______________________________________| n-enhancement n-enhancement It's an NMOS gate that has a Vdd connection, but no ground connection. We've been using the 1980 version of esim. What I'd like to know is Is there an updated version of "esim" that can handle this gate, and can we get a copy? Is there any other public-domain or reasonably-priced piece of software out there that can do circuit simulation using the output of the "mextra" circuit extraction program? Thanks in advance for any and all answers. I'm getting a bit desperate! William Gwaltney Jr. decvax!mcnc!rti!will