From owner-sc22wg5@open-std.org Mon Mar 1 21:49:53 2010 Return-Path: X-Original-To: sc22wg5-dom8 Delivered-To: sc22wg5-dom8@www2.open-std.org Received: by www2.open-std.org (Postfix, from userid 521) id 1A74CC178DF; Mon, 1 Mar 2010 21:49:53 +0100 (CET) X-Original-To: sc22wg5@open-std.org Delivered-To: sc22wg5@open-std.org Received: from mail.jpl.nasa.gov (mailhost.jpl.nasa.gov [128.149.139.105]) by www2.open-std.org (Postfix) with ESMTP id 3A387C178D9 for ; Mon, 1 Mar 2010 21:49:51 +0100 (CET) Received: from [137.79.7.57] (math.jpl.nasa.gov [137.79.7.57]) (authenticated (0 bits)) by smtp.jpl.nasa.gov (Switch-3.4.2/Switch-3.4.1) with ESMTP id o21KnngY001824 (using TLSv1/SSLv3 with cipher DHE-RSA-AES256-SHA (256 bits) verified NO) for ; Mon, 1 Mar 2010 12:49:49 -0800 Subject: Web about IBM 1401 Fortran From: Van Snyder Reply-To: Van.Snyder@jpl.nasa.gov To: sc22wg5 Content-Type: text/plain Organization: Yes Date: Mon, 01 Mar 2010 12:49:47 -0800 Message-Id: <1267476589.24615.920.camel@math.jpl.nasa.gov> Mime-Version: 1.0 X-Mailer: Evolution 2.12.3 (2.12.3-19.el5) Content-Transfer-Encoding: 7bit X-Source-IP: math.jpl.nasa.gov [137.79.7.57] X-Source-Sender: Van.Snyder@jpl.nasa.gov X-AUTH: Authorized Sender: owner-sc22wg5@open-std.org Precedence: bulk Ed Thelen has prepared a web page about IBM 1401 Fortran II at http://www.ed-thelen.org/1401Project/1401-FORTRAN-Illustrated.html. In it, he describes each of the 63 phases of the compiler, interleaved with the code for the phase. These descriptions are from the IBM Systems Journal paper referenced below, and are complementary to the descriptions in the IBM manual http://www.bitsavers.org/pdf/ibm/140x/C24-1455-2_Fortran_Specifications_and_Operating_Procedures_Apr65.pdf The phase listings are the ones I prepared by disassembling and reverse engineering an operational tape. I did this because the primary author, Gary Mokotoff , told me his listing had accidentally been discarded when he retired. A few years later he found it and sent me a copy. I transcribed and assembled it, and compared the results to the operational tape, to "proofread" it. There might still be typos in the comments. Ed doesn't provide that code on his web. Paul McJones believes the IBM Systems Journal paper (v.4, no.1, 1965, pp 73-80) ought to be required reading in computer science curricula. There is an online scan of the paper at http://www.research.ibm.com/journal/sj/041/ibmsjIVRIH.pdf but page 78 is missing. Randy Neff and Robert Garner sent Ed the missing page. An OCR version, including the missing page, is available at http://ed-thelen.org/1401Project/1401-IBM-Systems-Journal-FORTRAN.html If anybody wants the source code files I'm happy to send them. -- Van Snyder | What fraction of Americans believe Van.Snyder@jpl.nasa.gov | Wrestling is real and NASA is fake? Any alleged opinions are my own and have not been approved or disapproved by JPL, CalTech, NASA, the President, or anybody else.