From: Adam Thornton <athornton@gmail.com>
To: Douglas McIlroy <douglas.mcilroy@dartmouth.edu>,
The Eunuchs Hysterical Society <tuhs@tuhs.org>
Subject: Re: [TUHS] 386BSD released
Date: Wed, 14 Jul 2021 19:41:00 -0700 [thread overview]
Message-ID: <CAP2nic3OB4Zs=owmmGTYTjw2H5gq=HwFVv53yYxnUS+EU0CAVQ@mail.gmail.com> (raw)
In-Reply-To: <CAKH6PiVCjo3YnTZUVYOCDeffQ6POVwGAQA1QMR9UinkfGn+AmQ@mail.gmail.com>
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"SHARE. It's not an acronym. It's what we do."
*Still* a bad-ass slogan after all these years.
Adam
On Wed, Jul 14, 2021 at 7:22 PM Douglas McIlroy <
douglas.mcilroy@dartmouth.edu> wrote:
> > Arguably ancient PDP-10 operating systems like ITS, WAITS, TENEX were
> > somewhat "open" and "free", but it's not a clear cut case.
>
> The open source movement was a revival of the old days of SHARE and other
> user groups.
>
> SAP, the SHARE assembly program for the IBM 704, was freely available--with
> source code--to all members of the SHARE user group. I am not aware of any
> restrictions on redistribution.
>
> Other more specialized programs were also freely available through SHARE.
> In
> particular, Fortran formatted IO was adopted directly from a SHARE program
> written by Roy Nutt (who also wrote SAP and helped write Fortran I).
>
> Bell Labs freely distributed the BESYS operating system for the IBM 704.
> At the time (1958) no operating system was available from IBM.
>
> IBM provided source code for the Fortran II compiler. In the
> fashion of the time, I spent a memorable all-night session with
> that code at hand, finding and fixing a bizarre bug (a computed GOTO
> bombed if the number of branches was 74 mod 75) with a bizarre cause
> (the code changed the index-register field in certain instructions on the
> fly--inconsistently). And there was no operating system to help, because
> BESYS swapped itself out to make room for the compiler.
>
> Doug
>
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next prev parent reply other threads:[~2021-07-15 2:41 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-15 2:21 Douglas McIlroy
2021-07-15 2:41 ` Adam Thornton [this message]
2021-07-15 15:07 ` Clem Cole
2021-07-15 19:33 ` [TUHS] [COFF] " Theodore Y. Ts'o
2021-07-15 19:49 ` Adam Thornton
2021-07-15 20:29 ` Andy Kosela
2021-07-16 2:22 ` Theodore Y. Ts'o
2021-07-15 20:30 ` Clem Cole
2021-07-16 1:58 ` Theodore Y. Ts'o
2021-07-16 2:14 ` George Michaelson
2021-07-15 23:02 ` joe mcguckin
-- strict thread matches above, loose matches on Subject: below --
2021-07-16 17:30 [TUHS] " Nelson H. F. Beebe
2021-07-13 22:28 Dave Horsfall
2021-07-14 7:54 ` Michael Kjörling
2021-07-14 8:19 ` Angus Robinson
2021-07-14 8:32 ` Michael Kjörling
2021-07-14 9:07 ` Lars Brinkhoff
2021-07-14 14:09 ` Larry McVoy
2021-07-14 14:54 ` Warner Losh
2021-07-14 15:06 ` Richard Salz
2021-07-14 15:37 ` Steve Nickolas
2021-07-14 10:09 ` Tom Ivar Helbekkmo via TUHS
2021-07-14 10:39 ` arnold
2021-07-14 17:21 ` Lyndon Nerenberg (VE7TFX/VE6BBM)
2021-07-14 17:32 ` Richard Salz
2021-07-14 15:01 ` Clem Cole
2021-07-14 11:49 ` Andy Kosela
2021-07-14 15:48 ` Theodore Y. Ts'o
2021-07-16 1:35 ` Dave Horsfall
2021-07-16 2:33 ` risner
2021-07-16 4:25 ` Theodore Y. Ts'o
2021-07-16 5:51 ` Bakul Shah
2021-07-16 13:00 ` Theodore Y. Ts'o
2021-07-16 13:56 ` Larry McVoy
2021-07-16 14:40 ` Clem Cole
2021-07-16 15:44 ` Theodore Y. Ts'o
2021-07-16 16:11 ` Bakul Shah
2021-07-16 19:07 ` Kevin Bowling
2021-07-16 20:17 ` Clem Cole
2021-07-16 20:24 ` Richard Salz
2021-07-18 13:13 ` arnold
2021-07-18 13:23 ` Richard Salz
2021-07-14 21:37 ` Bakul Shah
2021-07-16 21:22 ` Dave Horsfall
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