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 16:55:17 +0100
Date: 2019-02-27T16:55:17+01:00 [thread overview]
Message-ID: <q56bt3$kbn$1@gioia.aioe.org> (raw)
In-Reply-To: q564qe$1ila$1@gioia.aioe.org
On 2019-02-27 14:54, russ lyttle wrote:
> On 2/27/19 3:26 AM, Dmitry A. Kazakov wrote:
>> On 2019-02-27 07:20, russ lyttle wrote:
>>
>>> That is all true. You could make the case that C turns your computer
>>> into a PDP-11. I was being generous.
>>
>> Huh, you could not write
>>
>> MOV -(PC),-(PC)
>>
>> in C, if I correctly remember the famous PDP-11 one-liner.
>>
> https://developers.slashdot.org/story/13/06/19/1227244/pdp-11-still-working-in-nuclear-plants---for-37-more-years
>
>
> In case the reader doesn't know the reference. IIRC, there was a way
> to inject that code from a C program. As one commented, the code is on a
> 9-track tape somewhere.
Maybe an anecdote. The only C compiler for PDP-11 (for RSX-11M) I
remember was a 5-stage monster which took an half an hour to compile
hello-world. We programmed it mostly in MACRO-11 (an incredibly powerful
assembler/preprocessor language).
BTW, RSX-11M had pretty much powerful memory protection and
virtualization. I remember tricks to gain an equivalent of root
privileges, but most them were closed in late versions. All this on the
machines with 256K RAM. If not the stupidity of management the first PCs
could be LSI-11 based.
https://en.wikichip.org/wiki/dec/lsi-11
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2019-02-27 15:55 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 ` Jon S Anthony
1996-07-15 0:00 ` Brian Rogoff
1996-07-15 0:00 ` Mark Eichin
1996-07-16 0:00 ` Jon S Anthony
2019-03-02 16:07 ` Optikos
2019-03-03 22:14 ` russ lyttle
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
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 [this message]
2019-02-27 16:46 ` russ lyttle
2019-02-27 23:52 ` Randy Brukardt
2019-02-27 8:20 ` Dmitry A. Kazakov
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
1996-07-17 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
1996-07-22 0:00 ` Felicia R. Rosemond (214)-462-5371 ple1 SE
1996-07-29 0:00 ` Wallace E. Owen
1996-07-19 0:00 Marin David Condic, 407.796.8997, M/S 731-93
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