From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id 295d58e1 for ; Tue, 13 Nov 2018 23:15:12 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id EFAACA248B; Wed, 14 Nov 2018 09:15:10 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 9DFBCA22C7; Wed, 14 Nov 2018 09:14:56 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id B60FBA22C7; Wed, 14 Nov 2018 09:14:55 +1000 (AEST) Received: from viclamta14p.bpe.bigpond.com (viclamta14p.bpe.bigpond.com [203.38.21.78]) by minnie.tuhs.org (Postfix) with ESMTPS id 712D8A22C1 for ; Wed, 14 Nov 2018 09:14:54 +1000 (AEST) Received: from smtp.telstra.com ([10.10.26.4]) by viclafep14p-svc.bpe.nexus.telstra.com.au with ESMTP id <20181113231451.HKLE30787.viclafep14p-svc.bpe.nexus.telstra.com.au@smtp.telstra.com> for ; Wed, 14 Nov 2018 10:14:51 +1100 X-RG-Spam: Unknown X-RazorGate-Vade-Verdict: clean 0 X-RazorGate-Vade-Classification: clean X-RazorGate-Vade: gggruggvucftvghtrhhoucdtuddrgedtkedrledvgddtiecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfupfevtfgpvffgnffuvfftteenuceurghilhhouhhtmecufedttdenucenucfjughrpeffhffvufgjkfhffgggtgesthdttddttdervdenucfhrhhomhepffgrvhgvucfjohhrshhfrghllhcuoegurghvvgeshhhorhhsfhgrlhhlrdhorhhgqeenucffohhmrghinhepthhuhhhsrdhorhhgnecukfhppeduuddtrddugedurdduleefrddvfeefnecurfgrrhgrmhephhgvlhhopegrnhgvuhhrihhnrdhhohhrshhfrghllhdrohhrghdpihhnvghtpeduuddtrddugedurdduleefrddvfeefpdhmrghilhhfrhhomhepoegurghvvgeshhhorhhsfhgrlhhlrdhorhhgqedprhgtphhtthhopeeothhuhhhssehtuhhhshdrohhrgheqnecuvehluhhsthgvrhfuihiivgeptd X-RG-VS-CLASS: clean Received: from aneurin.horsfall.org (110.141.193.233) by smtp.telstra.com (9.0.019.26-1) id 5BB3FBB60765D2F2 for tuhs@tuhs.org; Wed, 14 Nov 2018 10:14:51 +1100 Received: from aneurin.horsfall.org (localhost [127.0.0.1]) by aneurin.horsfall.org (8.15.2/8.15.2) with ESMTP id wADNEoVk061378 for ; Wed, 14 Nov 2018 10:14:50 +1100 (EST) (envelope-from dave@horsfall.org) Received: from localhost (dave@localhost) by aneurin.horsfall.org (8.15.2/8.15.2/Submit) with ESMTP id wADNEnWR061375 for ; Wed, 14 Nov 2018 10:14:50 +1100 (EST) (envelope-from dave@horsfall.org) X-Authentication-Warning: aneurin.horsfall.org: dave owned process doing -bs Date: Wed, 14 Nov 2018 10:14:49 +1100 (EST) From: Dave Horsfall To: The Eunuchs Hysterical Society In-Reply-To: <20181113224952.GA29973@minnie.tuhs.org> Message-ID: References: <20181113215531.GA24373@minnie.tuhs.org> <20181113224952.GA29973@minnie.tuhs.org> User-Agent: Alpine 2.21.9999 (BSF 287 2018-06-16) X-GPG-Public-Key: http://www.horsfall.org/gpgkey.pub X-GPG-Fingerprint: 05B4 FFBC 0218 B438 66E0 587B EF46 7357 EF5E F58B X-Home-Page: http://www.horsfall.org/ X-Witty-Saying: "chmod 666 the_mode_of_the_beast" MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Subject: Re: [TUHS] Article on the history of cat(1) X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On Wed, 14 Nov 2018, Warren Toomey wrote: >> Didn't know that cat(1) was still written in assembly on Edition 6... > > https://minnie.tuhs.org/cgi-bin/utree.pl?file=V6/usr/source/s1/cat.s Thanks; then again, I never had a reason to poke around cat(1) (but I do remember adding a "-h" flag to pr(1) for a sub-header or something). In fact, the only assembler stuff I remember modifying was deep in the kernel, to take advantage of Unibus timing (on the /40 at least), where the "obvious" code was sub-optimal; can't remember the details, but it saved a bus cycle or two. Hell, I wish I still had that "CSU Tape"; it was Edition 6 with as much of Edition 7 (and AUSAM) that I could shoe-horn in, such as XON/XOFF for the TTY driver. I was known as "Mr Unix 6-1/2" at the time... Completely rewrote the 200-UT driver so that it actually worked (IanJ's driver was a horrible mess) and worked around an egregious bug on the Kronos side which they said was baked-in so deep that it couldn't be fixed. Rewrote the plotter driver and Versatec LV-11 driver to use the buffer pool instead of the character queues, so they went like a bat out of hell. Etc. -- Dave