Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!umich!umeecs!msi-s0.msi.umn.edu!sctc.com!boebert From: boebert@sctc.com (Earl Boebert) Newsgroups: comp.arch Subject: Re: Algol was an advance, was He's not the only one at it again! Message-ID: <1990Jul31.231428.4741@sctc.com> Date: 31 Jul 90 23:14:28 GMT References: <1288@s8.Morgan.COM> <58372@lanl.gov> <1990Jul30.174035.26412@esegue.segue.boston.ma.us> <3262@stl.stc.co.uk> <1990Jul31.185100.2865@sctc.com> Organization: Secure Computing Technology Corporation Lines: 37 boebert@sctc.com (Earl Boebert) writes: >tom@stl.stc.co.uk (Tom Thomson) writes: >>In article <1990Jul30.174035.26412@esegue.segue.boston.ma.us> johnl@esegue.segue.boston.ma.us (John R. Levine) writes: >>>(Of course, just because Algol has a context-free easy-to-tokenize syntax >>>doesn't mean that actual implementations all do. There was IBM's Algol F, >>>which ignored blanks and required you to put quotes around your keywords, >>>proving once again that Real programmers can write Fortran programs in any >>>language. >>What's been forgotten here is that ALL the early implementations of Algol >>had this problem, it's NOT an IBM Algol F problem. >> > >[Stuff deleted ...] >>Tom Thomson [tom @ nw.stl.stc.co.uk >I don't recall GEIR Algol as having special delimeters for reserved words; >will check my old class notes from Naur's course to be sure and report >later ... >Earl Well I misremembered, including the spelling of the machine's name ... GIER Algol *underlined* reserved words, an elegance made possible because I/O on the machine was through a Flexowriter. This also gave them upper and lower case; we 026-limited Yankees were pretty envious of that! For the historically minded, the project was started in January of 1962 and a running compiler was available in February of 1963. GIER was a Danish machine: 1024 42-bit words of core w/8.8 microseconds access and 12,800 words on drum with 20 milliseconds to transfer a 40-word track; rather a speedly little devil for its time. The compiler was, to say the least, a beautiful piece of work, and all us budding compiler-writers went out of our way to sit at Naur's feet and hear how he did it.