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-Thread: 103376,3ef3e78eacf6f938 X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!news4.google.com!proxad.net!feeder1-2.proxad.net!news.mixmin.net!aioe.org!not-for-mail From: "John B. Matthews" Newsgroups: comp.lang.ada Subject: Re: Alternatives to C: ObjectPascal, Eiffel, Ada or Modula-3? Followup-To: comp.lang.ada Date: Wed, 24 Mar 2010 21:52:56 -0400 Organization: The Wasteland Message-ID: References: <4BA8BA91.4050905@cherrystonesoftware.com> <87r5n9s95m.fsf@galatea.lan.informatimago.com> <08034f15-30f4-4c54-ae90-13aaaafbc712@v20g2000yqv.googlegroups.com> <9N6dnWfJPsGbPTfWnZ2dnUVZ_qydnZ2d@earthlink.com> NNTP-Posting-Host: LQJtZWzu+iKlBROuDg+IUg.user.speranza.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Complaints-To: abuse@aioe.org X-Notice: Filtered by postfilter v. 0.8.2 User-Agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X) Xref: g2news2.google.com comp.lang.ada:10729 Date: 2010-03-24T21:52:56-04:00 List-Id: In article <9N6dnWfJPsGbPTfWnZ2dnUVZ_qydnZ2d@earthlink.com>, Patricia Shanahan wrote: > Patrick Scheible wrote: > > Adam Beneschan writes: > > > >> On Mar 24, 2:27=A0pm, p...@informatimago.com (Pascal J. Bourguignon) > >> wrote: > >> > >>>> True. =A0But P-code was for student use, not production, especially not > >>>> production in an application where execution time was critical. > >>> This is wrong. > >>> > >>> P-code was designed, and used, exactly like the JVM is today. =A0There > >>> even were developed processors that executed directly P-code, natively, > >>> like we have JVM implemented in hardware too. > >> I think Patrick is essentially correct; the Wikipedia entry for "UCSD > >> Pascal" says: > >> > >> "The University of California, San Diego Institute for Information > >> Systems developed it in 1978 to provide students with a common > >> operating system that could run on any of the then available > >> microcomputers as well as campus DEC PDP-11 minicomputers." [This was > >> before the IBM PC came out, so I think "then available microcomputers" > >> meant Terak and maybe Apple II; perhaps there were some others.] > > > > I encountered it on a CP/M system. S-100 bus, Z80 processor. Apple > > II's that I saw didn't run it, but I wouldn't swear that it was > > impossible. > > Apple Pascal was based on UCSD Pascal. I ran it frequently on my Apple > II. According to the reference manual, it required 48 KB memory, at > least one Apple II disk drive, and the Apple Language System. Just for fun I took a screen shot of Apple UCSD-Pascal 1.3 (II.1) running on an emulator written in Java: The UC regents recently released the original I.5 sources "for educational, research, and non-profit purposes" -- John B. Matthews trashgod at gmail dot com