From mboxrd@z Thu Jan 1 00:00:00 1970 From: wkt@tuhs.org (Warren Toomey) Date: Fri, 01 Jan 2016 09:13:43 +1000 Subject: [TUHS] Unix Circuit Design System In-Reply-To: References: Message-ID: Ah, it's in the archive at http://www.tuhs.org/Archive/Applications/Circuit_Design/ Cheers, Warren On 1 January 2016 8:52:34 am AEST, Clem Cole wrote: >Funny you should ask.... > >I had the last known virgin copy of that UCDS a few years ago, which we >managed to save. Dennis declared it part of V7 (just a little late >being >distributed), which we promptly sent to Warren, who has the source in >his >archives. Note it uses a tektronix 40xx terminal as the native >screen. >It's been years since I used it, but I may be able to answer a few >questions. I suspect the biggest issue with trying to use with xterm >emulation is that lack of the two wheels that the tek terminals had. > >Good luck, >Clem > >On Thu, Dec 31, 2015 at 1:20 PM, Michele Ghisolfo > >wrote: > >> Hello all! >> >> While I was reading the article "A Research UNIX Reader: Annotated >> Excerpts >> from the Programmer's Manual" from Douglas McIlroy, I learnt of a set >of >> utilities for designing electronic circuits. Here is a brief quote >of this >> article: >> >> "CDL (v7 pages 60-63) >> >> Although most users do not encounter the UNIX Circuit Design System, >it >> has long >> stood as an important application in the lab. Originated by Sandy >Fraser >> and >> extended by Steve Bourne, Joe Condon, and Andrew Hume, UCDS handles >> circuits >> expressed in a common design language, cdl. It includes programs to >create >> descriptions using interactive graphics, to lay out boards >automatically, >> to >> check circuits for consistency, to guide wire-wrap machines, to >specify >> combinational circuits and optimize them for programmed logic arrays >> (Chesson >> and Thompson). Without UCDS, significant inventions like Datakit, >the >> 5620 Blit >> terminal, or the Belle chess machine would never have been built. >UCDS >> appeared >> in only one manual, v7." >> >> >> I looked it up on the 7th Edition's Manual and I haven't found >references >> of >> this system. I also searched a v7 system image downloaded from TUHS >and >> got no >> results. However I got some references of this system in USENET >> archives. In >> particular, two hierarchies, net.draw and after net.ucds were >dedicated to >> it. >> Apparently two of the binaries of the system were called "draw" and >> "wrap". I >> also found a manual of a similar system which I suppose is the UCDS >> descendant >> in the 1st Edition of Plan 9. This is the link of the document: >> >> http://doc.cat-v.org/plan_9/1st_edition/cda/ >> >> However that edition of Plan 9 is not publicly released and I could >not >> find >> it in following editions. But since v7 Unix is available, I hope it >may >> be possible to get hold of an older release at least. >> >> Does anyone have any information? >> >> Thank you in advance! >> >> --- Michele >> -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. -------------- next part -------------- An HTML attachment was scrubbed... URL: