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Article #625542Re: PDP-10 addressing, PDP 11/40 system manual
From: John Levine
Date: Sat, 11 Aug 2018 15:23
Date: Sat, 11 Aug 2018 15:23
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2328 bytes
In article <1173318279.555679658.757...@news.eternal-september.org>, Peter Flass <peter...@yahoo.com> wrote: >Yes, I loved the -10 too, although I didn't program it extensively. I was >sorry when it was canceled, although I suspect it would have been difficult >to expand the architecture to larger memory sizes. We don't have to guess. They did expand the addressing for the DEC-20 and it was pretty ugly. The extra address bits were called the section number, with some addressing being within the current section and some being global. TOPS-20 supported it but I don't recall many programs using it. -- Regards, John Levine, jo...@iecc.com, Primary Perpetrator of "The Internet for Dummies", Please consider the environment before reading this e-mail. https://jl.ly
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X-Received: by 2002:a02:a590:: with SMTP id b16-v6mr5007352jam.40.1534000988536; Sat, 11 Aug 2018 08:23:08 -0700 (PDT) X-BeenThere: alt.folklore.computers@googlegroups.com Received: by 2002:a24:a86:: with SMTP id 128-v6ls738792itw.5.canary-gmail; Sat, 11 Aug 2018 08:23:07 -0700 (PDT) X-Received: by 2002:a24:1c10:: with SMTP id c16-v6mr3283715itc.13.1534000987700; Sat, 11 Aug 2018 08:23:07 -0700 (PDT) MIME-Version: 1.0 Path: mbox-mo1.pugleaf.net!c189-v6ni402ith.0!nntp.google.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!weretis.net!feeder6.news.weretis.net!news.cmpublishers.com!adore2!news.iecc.com!.POSTED.news.iecc.com!not-for-mail From: John Levine <jo...@taugh.com> Newsgroups: alt.folklore.computers Subject: Re: PDP-10 addressing, PDP 11/40 system manual Date: Sat, 11 Aug 2018 15:23:07 -0000 (UTC) Organization: Taughannock Networks Message-ID: <pkmv0r$2bhi$1@gal.iecc.com> References: <21aaeee8-c41a-4442-a4eb-ea6a29b1e4f1@googlegroups.com> <mddh8k2vyfh.fsf@panix5.panix.com> <ft6gi3F3aanU11@mid.individual.net> <1173318279.555679658.757757.peter_flass-yahoo.com@news.eternal-september.org> Injection-Date: Sat, 11 Aug 2018 15:23:07 -0000 (UTC) Injection-Info: gal.iecc.com; posting-host="news.iecc.com:2001:470:1f07:1126:0:676f:7373:6970"; logging-data="77362"; mail-complaints-to="ab...@iecc.com" Cleverness: some X-Newsreader: trn 4.0-test77 (Sep 1, 2010) Originator: jo...@iecc.com (John Levine) Bytes: 1841 Lines: 17 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit