From: imp@bsdimp.com (Warner Losh)
Subject: [TUHS] PDP-10 UNIX?
Date: Sun, 17 Sep 2017 08:31:19 -0600 [thread overview]
Message-ID: <CANCZdforuA-Qtuyw9fr9BDXQ+vZ+YRgLw0ahchCwwtvT7u=RUA@mail.gmail.com> (raw)
In-Reply-To: <d90d0034-b138-4b76-c28d-865d5839613e@kilonet.net>
On Sun, Sep 17, 2017 at 8:28 AM, Arthur Krewat <krewat at kilonet.net> wrote:
> Was there ever a UNIX or even the thought of porting one to a PDP-10?
>
> 36-bit machine, 18-bit addresses (more on KL10 and KS10), and:
>
> *0 would return register 0 instead of a SIGSEGV ;)
>
> 8-bit bytes would have been a wasteful exercise, but you never know.
> (losing 4 bits of every 36-bit word)
>
IIRC, there was a NetBSD/pdp10. Don't know how far it got.
The instructor of my first C course in college wrote a very good C compiler
for TOPS-10/TOPS-20.
Warner
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next prev parent reply other threads:[~2017-09-17 14:31 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-17 14:28 Arthur Krewat
2017-09-17 14:31 ` Warner Losh [this message]
2017-09-17 15:01 ` Lars Brinkhoff
2017-09-17 15:22 ` Arthur Krewat
2017-09-18 13:50 ` Clem Cole
2017-09-18 16:42 ` Arthur Krewat
2017-09-18 19:58 ` Lars Brinkhoff
2017-09-18 20:10 ` Clem Cole
2017-09-18 20:22 ` Lars Brinkhoff
2017-09-18 20:43 ` Clem cole
2017-09-19 9:06 ` Mutiny
2017-09-19 9:56 ` Lars Brinkhoff
2017-09-17 16:33 ` Warner Losh
[not found] <mailman.1031.1505666037.3779.tuhs@minnie.tuhs.org>
2017-09-18 2:34 ` Johnny Billquist
2017-09-18 15:30 ` Arthur Krewat
2017-09-18 16:46 ` Steve Johnson
2017-09-18 17:25 ` Clem Cole
2017-09-18 17:40 ` Larry McVoy
2017-09-18 20:08 ` Chris Torek
2017-09-18 17:24 Nelson H. F. Beebe
2017-09-18 18:10 ` Lars Brinkhoff
2017-09-20 4:55 ` Warner Losh
2017-09-18 21:14 Noel Chiappa
2017-09-19 6:46 ` Lars Brinkhoff
2017-09-20 18:40 Nelson H. F. Beebe
2017-09-24 18:29 ` arnold
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