From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,448990452c132610 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2002-02-27 09:55:42 PST Newsgroups: comp.lang.ada Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newsfeed.online.be!zur.uu.net!ash.uu.net!xyzzy!nntp From: Jeffrey Carter Subject: Re: The making of compilers X-Nntp-Posting-Host: e246420.msc.az.boeing.com Content-Type: text/plain; charset=us-ascii Message-ID: <3C7D1B7A.5A17002E@boeing.com> Sender: nntp@news.boeing.com (Boeing NNTP News Access) Content-Transfer-Encoding: 7bit Organization: The Boeing Company X-Accept-Language: en References: <5ee5b646.0202250655.6fd2bfb8@posting.google.com> <9ff447f2.0202261716.33ea286f@posting.google.com> Mime-Version: 1.0 Date: Wed, 27 Feb 2002 17:46:34 GMT X-Mailer: Mozilla 4.73 [en]C-CCK-MCD Boeing Kit (WinNT; U) Xref: archiver1.google.com comp.lang.ada:20526 Date: 2002-02-27T17:46:34+00:00 List-Id: Adrian Hoe wrote: > > dewar@gnat.com (Robert Dewar) wrote in message news:<5ee5b646.0202250655.6fd2bfb8@posting.google.com>... > > Yes, that's indeed the most reasonable approach if there are no > > existing compilers for the language. For example, Alsys Ada was > > initially implemented using a subset compiler written in PL/1. My recollection of a talk by Ichbiah (at the time) was that they wrote the Alsys compiler in Ada 83 and wrote a program (presumably in PL/1) to translate Ada 83 to PL/1. Once the executable worked well enough, of course, they stopped using the translator and just compiled the compiler with the compiler. -- Jeffrey Carter Beard, but no glasses since LASIK (except reading glasses)