From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: from minnie.tuhs.org (minnie.tuhs.org [IPv6:2600:3c01:e000:146::1]) by inbox.vuxu.org (Postfix) with ESMTP id 7F9F823497 for ; Thu, 9 May 2024 22:57:37 +0200 (CEST) Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id BCD8F43348; Fri, 10 May 2024 06:57:32 +1000 (AEST) Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) by minnie.tuhs.org (Postfix) with ESMTPS id EADC343346 for ; Fri, 10 May 2024 06:57:22 +1000 (AEST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 641BF60002 for ; Thu, 9 May 2024 20:57:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bitsavers.org; s=gm1; t=1715288240; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=iF/kwXYem9r5OHwkH/e+YrScGpuv3dUEvophcxDmUIA=; b=CWTveOXeXxcbQQzQCA83c/3j/rYJkiJjBp3V8VgUBeRP6d5m9gBiwJziTmMMamrRnySi5j 99PIUsLu6n+LaHPbJOlk27WUupvTt+7jo6hrxuX/BJfRnwDGYELPNHD4ytWb8u/l93M720 jxambxTmd7pCqwxunXhRmsmJPJ/k8RVLT+MmIX6bkauZ5Q4E9ZKfp1Q4ecSQQSZH7dGI69 SbzEEQ0FuO4/AU08cV6vhJCy2XGTUkPqhgNfeOD6gJFOGRG+nkgTgld0HEmbDn9+cTzdwX 8SzANw3FdQ6IUw248rbgPIYT5rbDBrSqDrFXE9ezCx27C10PakwoAIijiR38ew== To: tuhs@tuhs.org References: <18efd14f-4da6-4771-ad6a-901c6cb6105d@planet.nl> From: Al Kossow Message-ID: Date: Thu, 9 May 2024 13:57:18 -0700 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-GND-Sasl: aek@bitsavers.org Message-ID-Hash: YI5R5F3PJ74WB5BF3J52VI3RRCDHHZ6M X-Message-ID-Hash: YI5R5F3PJ74WB5BF3J52VI3RRCDHHZ6M X-MailFrom: aek@bitsavers.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: On the uniqueness of DMR's C compiler List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On 5/9/24 1:40 PM, Paul Ruizendaal via TUHS wrote: > - Unfortunately, I have not been able to find a description of the POPS IL. I went down that rabbit hole researching why Don Knuth had a high opinion of it. If you dig around, the IL is described in the SDS Fortran documentation http://bitsavers.org/pdf/sds/9xx/lang/900883A_9300_FORTRAN_IV_Tech_Aug65.pdf and http://bitsavers.org/pdf/digitek/Data_Structures_in_Digiteks_FORTRAN_IV_Compiler_for_the_SDS_900_Series.pdf and a compiler listing https://archive.computerhistory.org/resources/text/Knuth_Don_X4100/PDF_index/k-1-pdf/k-1-C1051-Digitek-FORTRAN.pdf