From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Why couldn't an operating system be written in ada
Date: Wed, 27 Feb 2019 09:20:11 +0100
Date: 2019-02-27T09:20:11+01:00 [thread overview]
Message-ID: <q55h7q$m3j$1@gioia.aioe.org> (raw)
In-Reply-To: q54i9q$idj$1@gioia.aioe.org
On 2019-02-27 00:32, lyttlec wrote:
> Often overlooked is that any "C-esque" POSIX compliant OS turns the
> computer into a VAX. C was written to be easily translated into VAX
> machine code and POSIX signals are all the original interrupts on a VAX.
> If you have a CISC computer running VMS, C is your language.
What? In VMS you could call any OS primitive from *any* language without
POSIX garbage. DEC Ada worked perfectly well doing OS calls even if you
had no DEC C installed. Why would you ever use C if you had DEC Ada?
POSIX was nothing but one of many successful UNIX's moves to eliminate
more advanced OSes and crush OS market.
BTW, nobody sane would ever use POSIX layer on VMS. VMS API were
infinitely more advanced and comfortable to use in every possible
aspect. The same can be said about Windows. However bad Windows API
might be, POSIX Windows API is far worse and inferior. Even under Linux
POSIX is the last resort when nothing else helps.
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2019-02-27 8:20 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-07-13 0:00 Why couldn't an operating system be written in ada Mark McKinney
1996-07-15 0:00 ` Nasser Abbasi
1996-07-15 0:00 ` Robert Dewar
1996-07-17 0:00 ` Randy Greene
1996-07-17 0:00 ` Hannes Haug
1996-07-15 0:00 ` David Wheeler
1996-07-15 0:00 ` Michael Levasseur
1996-07-25 0:00 ` Greg Harvey
1996-07-26 0:00 ` Kent Mitchell
1996-07-16 0:00 ` Poutanen Olavi
1996-07-15 0:00 ` Jon S Anthony
1996-07-15 0:00 ` Mark Eichin
1996-07-15 0:00 ` Brian Rogoff
1996-07-16 0:00 ` Jon S Anthony
2019-03-02 16:07 ` Optikos
2019-03-03 22:14 ` russ lyttle
2019-01-10 23:38 ` cenci.br
2019-01-10 23:54 ` Lucretia
2019-04-07 1:55 ` Nick Roberts
2019-04-07 4:32 ` Optikos
2019-04-07 10:35 ` Nick Roberts
2019-04-07 14:06 ` Optikos
2019-01-14 11:26 ` George Shapovalov
2019-02-25 2:25 ` russ lyttle
2019-03-09 18:43 ` Norman Worth
2019-02-25 21:56 ` Rabican
2019-02-26 8:46 ` Niklas Holsti
2019-02-26 9:30 ` Dmitry A. Kazakov
2019-02-26 23:32 ` lyttlec
2019-02-27 2:00 ` Dennis Lee Bieber
2019-02-27 6:20 ` russ lyttle
2019-02-27 8:26 ` Dmitry A. Kazakov
2019-02-27 13:54 ` russ lyttle
2019-02-27 15:55 ` Dmitry A. Kazakov
2019-02-27 16:46 ` russ lyttle
2019-02-27 23:52 ` Randy Brukardt
2019-02-27 8:20 ` Dmitry A. Kazakov [this message]
2019-02-27 14:06 ` russ lyttle
2019-02-27 14:23 ` Niklas Holsti
2019-02-27 16:01 ` Dmitry A. Kazakov
2019-02-27 17:04 ` russ lyttle
2019-02-27 17:29 ` Dmitry A. Kazakov
2019-03-09 18:46 ` Norman Worth
2019-02-26 23:13 ` lyttlec
2019-02-27 19:10 ` Shark8
2019-02-27 19:51 ` russ lyttle
2019-02-27 22:12 ` Niklas Holsti
2019-03-01 15:07 ` fabien.chouteau
2019-02-27 10:47 ` Patrick Jakubowski
2019-02-28 6:23 ` G. B.
2019-02-28 8:28 ` Simon Wright
-- strict thread matches above, loose matches on Subject: below --
1996-07-15 0:00 Simon Johnston
1996-07-15 0:00 Robert C. Leif, Ph.D.
1996-07-17 0:00 ` wfranck
1996-07-22 0:00 ` Felicia R. Rosemond (214)-462-5371 ple1 SE
1996-07-29 0:00 ` Wallace E. Owen
1996-07-17 0:00 ` Mark McKinney
1996-07-20 0:00 ` Michael Feldman
1996-07-22 0:00 ` Theodore E. Dennison
1996-07-22 0:00 ` Larry Kilgallen
1996-07-30 0:00 ` Pascal Martin @lone
1996-08-01 0:00 ` Bob Kitzberger
1996-08-03 0:00 ` Pascal Martin @lone
1996-07-17 0:00 ` wfranck
1996-07-19 0:00 Marin David Condic, 407.796.8997, M/S 731-93
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