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Full Discussion: UNIX Circuit Design System
Special Forums UNIX and Linux Applications UNIX Circuit Design System Post 302963490 by mghis on Thursday 31st of December 2015 11:32:59 AM
Old 12-31-2015
UNIX Circuit Design System

Hi all.

In some articles I have read about a "UNIX Circuit Design System", which was written originally in some version of
Research UNIX by Sandy Fraser.

Here is a quote from the article "A Research UNIX Reader: Annotated Excerpts from the Programmer's Manual", by Douglas McIlroy:

Quote:
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.
Even this page of a book recorded by "Google Books" describes in some extent its use.

However I could not find the source code nor the manual, even though 7th Edition UNIX nowadays is freely available. (I have searched through TUHS Archives)

Does anyone know why is is not included in V7 sources and how can I get it?


Thank you in advance.
 

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CROSSPOST(8)						      System Manager's Manual						      CROSSPOST(8)

NAME
crosspost - create the links for cross posted articles SYNOPSIS
crosspost [ -D dir ] [ -s ] [ file... ] DESCRIPTION
Crosspost reads group and article number data from files or standard input if none are specified. (A single dash in the file list means to read standard input.) It uses this information to create the hard, or symbolic, links for cross posted articles. Crosspost is designed to be used by InterNetNews to create the links as the articles come in. Normally innd creates the links but by having crosspost create the links innd spends less time waiting for disk IO. In this mode one would start innd(8) using the ``-L'' flag. Crosspost expects input in the form: group.name/123 group2.name/456 group3.name/789 with one line per article. Any dots in the input are translated into "/" to translate the news group into a pathname. The first field is assumed to be the name of an existing copy of the article. Crosspost will attempt to link all the subsequent entries to the first using hard links if possible or symbolic links if that fails. By default, crosspost processes its input as an INN channel feed written as a ``WR'' entry in the newsfeeds(5) file, for example: crosspost:*:Tc,Ap,WR:/usr/lib/news/bin/crosspost To process the history file and re-create all the links for all articles use: awk <history -F' ' '(NF > 2){print $3}' | crosspost (where the -F is followed by a tab character.) The ``-D'' flag can be used to specify where the article spool is stored. The default directory is /var/spool/news. By default crosspost will fsync(2) each article after updating the links. The ``-s'' flag can be used to prevent this. HISTORY
Written by Jerry Aguirre <jerry@ATC.Olivetti.Com>. SEE ALSO
newsfeeds(5), innd(8). CROSSPOST(8)
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