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From: "Pat Rogers" <progers@classwide.com>
Subject: Re: Thought this was interesting
Date: Mon, 26 Aug 2002 05:12:24 GMT
Date: 2002-08-26T05:12:24+00:00	[thread overview]
Message-ID: <XMia9.2476$C01.601484351@newssvr12.news.prodigy.com> (raw)
In-Reply-To: 3D697F0E.7D4C1E8E@san.rr.com

"Darren New" <dnew@san.rr.com> wrote in message
news:3D697F0E.7D4C1E8E@san.rr.com...
> Richard Riehle wrote:
> > The really interesting question about this article is,
> > "How much of the code is written in Ada, if any?"
>
> Last I heard, it was all FORTH. But then, last I heard, they were
still on
> core memory, too.

No, on-board shuttle flight software is mostly written in a very fine
language named HAL/S.  I wrote a few of the "HAL/S versus Ada" studies
for NASA (concerning the space station) in the early 80's.   Ada won,
but no matter who wrote them they always started with "Well, HAL could
do it, but..."

PS: Hands up if you have a copy of Mike Ryer's book.   Bonus points if
you know what HAL stands for. :-)

--
Patrick Rogers                       Consulting and Training in:
http://www.classwide.com          Real-Time/OO Languages
progers@classwide.com               Hard Deadline Schedulability
Analysis
(281)648-3165                                 Software Fault Tolerance







  reply	other threads:[~2002-08-26  5:12 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-08-23 19:10 Thought this was interesting Darren New
2002-08-24 23:01 ` Robert Dewar
2002-08-25  1:04   ` Jeffrey Carter
2002-08-26  0:45     ` Richard Riehle
2002-08-26  1:05       ` Darren New
2002-08-26  5:12         ` Pat Rogers [this message]
2002-08-26 16:01           ` Jerry Petrey
2002-08-26 16:21             ` Pat Rogers
2002-09-02 15:10               ` "HAL" acronym (was Re: Thought this was interesting) Ben Brosgol
2002-09-03  5:39                 ` Manny Apalisok
2002-09-03 11:11                   ` Frank J. Lhota
2002-08-26 17:34             ` Thought this was interesting Robert A Duff
2002-08-26 20:18               ` Jerry Petrey
2002-08-26 14:20     ` Ted Dennison
2002-08-26 18:09       ` Jeffrey Carter
2002-08-25  3:23   ` Larry Kilgallen
2002-08-26 10:29   ` Florian Weimer
2002-08-26 10:30   ` Florian Weimer
2002-08-25  3:27 ` tmoran
2002-08-25 14:48   ` Thought this was interesting (They Write the Right Stuff) Larry Kilgallen
2002-08-25 19:48   ` Thought this was interesting Darren New
2002-08-26 14:01   ` Marin D. Condic
2002-08-27 16:13     ` Hyman Rosen
2002-08-27 20:07       ` Thought this was interesting (OT) Chad R. Meiners
2002-08-27 20:21         ` Frank J. Lhota
2002-08-27 21:48           ` Robert A Duff
2002-08-28  9:23             ` AG
2002-08-28  9:33               ` AG
2002-08-28 15:05                 ` Dan Andreatta
2002-08-28 16:50                   ` Chad R. Meiners
2002-08-28 15:07                 ` Dan Andreatta
2002-08-29 17:12                   ` Thought this was interesting (Bounds Checking!) Warren W. Gay VE3WWG
2002-08-29 18:57                     ` Larry Kilgallen
2002-08-29 18:31                       ` Ryan
2002-08-28 13:29             ` Thought this was interesting (OT) Frank J. Lhota
2002-08-27 22:24           ` Hyman Rosen
2002-08-28  2:52             ` Jeffrey Carter
2002-08-28 13:26               ` Gautier
2002-08-28  4:01             ` Pat Rogers
2002-08-28  8:06             ` Ole-Hjalmar Kristensen
2002-08-28  2:52           ` SteveD
2002-08-28 11:09             ` Robert Dewar
2002-08-28  7:58       ` Thought this was interesting Ole-Hjalmar Kristensen
2002-08-28  9:41         ` AG
2002-08-29  1:23         ` Jeffrey Creem
2002-08-29  3:02           ` SteveD
2002-08-29  7:30             ` Ole-Hjalmar Kristensen
2002-09-03 15:49               ` Hyman Rosen
2002-08-27 18:48     ` tmoran
2002-08-28  3:10       ` Robert C. Leif
2002-08-26 14:29   ` Ted Dennison
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