From: wes.parish@paradise.net.nz (Wesley Parish)
Subject: [TUHS] Zilog Z80 Unix
Date: Sun, 23 Apr 2017 17:14:55 +1200 (NZST) [thread overview]
Message-ID: <1492924495.58fc384fad4f9@www.paradise.net.nz> (raw)
In-Reply-To: <CAC20D2NAX1mqb-JQtcGZu-Pk8KUVb9Zb=kxVxe64_fCGtDQg1A@mail.gmail.com>
FWIW, I've got a copy of "A Book on C" by RE Berry, BAE Meekings and MD Soren, which presents an
extension of Small C called RatC, and with example translations from RatC to 8080 and VAX.
Did anyone use RatC for any major project?
Wesley Parish
Quoting Clem Cole <clemc at ccc.com>:
> Leor Zolman had a little firm her in NE called Brain Damaged Software
> (BDS)
> and he wrote and marketed a full C compiler called BDS C -
> http://www.bdsoft.com/resources/bdsc.html [ which is now freely
> available -
> including the sources]. For years Leor's compiler was the de facto
> standard K&R style C compiler for the 8080/z80 systems for CP/M and
> such
> systems. [What was important, is that until Leor, the CP/M community
> was
> using something called "Small C" which was a sub-set of the language.
> Leor
> managed to get V7/K&R into a 8080].
>
> A couple of other folks (which I thought included Leor) had a UNIX-like
> system running on/with it that we showed to Dennis at first Boston
> USENIX
> in late the 1970s/early 1980s - that IIRC could take CP/M programs -
> [although they may have to been relinked]. My memory is that the system
> got sold/licensed to a firm on the west coast and marketed independently
> of
> BDS C, [you might ask Leor or maybe some like Phil Karn - i.e. any one
> that
> was doing both UNIX and CP/M in those days].
>
> If forgotten the details, I do remember Dennis saying that it reminded
> him
> very much of early UNIX and was very impressed with job that had been
> done. The basic tools were there: sh, ed, grep, ls and it was quite
> usable
> modulo floppy disk speeds.
>
> Clem
>
>
>
> On Wed, Apr 19, 2017 at 9:42 PM, Erik E. Fair <fair-tuhs at netbsd.org>
> wrote:
>
> > I have a memory of having seen a Zilog Z-80 (not Z8002 like the Onyx)
> > based Unix, possibly v6, at a vendor show or conference - perhaps the
> West
> > Coast Computer Faire (WCCF) in the late 1970s or early 1980s.
> >
> > I recall asking the people in the booth how they managed without an
> MMU,
> > and don't recall their answer. I do remember thinking that since Unix
> had
> > "grown up" with MMUs to stomp on obvious pointer mistakes, the
> software
> > ought to be relatively well-behaved ... you know: not trying to play
> "core
> > war" with itself?
> >
> > I searched the TUHS archives cursorily with Google to see if this has
> been
> > previously mentioned, but pretty much all Z80 CPU references have for
> its
> > use in "smart" I/O devices back in the day.
> >
> > Does anyone else remember this Z80 Unix and who did it? Or maybe that
> it
> > was a clone of some kind ... ?
> >
> > looking for a little history,
> >
> > Erik Fair
> >
>
"I have supposed that he who buys a Method means to learn it." - Ferdinand Sor,
Method for Guitar
"A verbal contract isn't worth the paper it's written on." -- Samuel Goldwyn
next prev parent reply other threads:[~2017-04-23 5:14 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-20 1:42 Erik E. Fair
2017-04-20 2:54 ` Jason Stevens
2017-04-20 3:09 ` Bakul Shah
2017-04-20 3:40 ` Gregg Levine
2017-04-20 4:34 ` Bakul Shah
2017-04-20 4:50 ` Warner Losh
2017-04-20 7:03 ` Wesley Parish
2017-04-20 7:32 ` Wesley Parish
2017-04-20 4:32 ` Rik Schneider
2017-04-20 13:05 ` Clem Cole
2017-04-22 21:07 ` Dave Horsfall
2017-04-22 23:59 ` Clem cole
2017-04-23 0:01 ` Clem cole
2017-04-23 0:13 ` Larry McVoy
2017-04-24 0:04 ` Greg 'groggy' Lehey
2017-04-24 0:40 ` Larry McVoy
2017-04-23 5:14 ` Wesley Parish
2017-04-23 5:14 ` Wesley Parish [this message]
2017-04-20 21:32 ` Dave Horsfall
2017-04-20 21:59 ` Larry McVoy
2017-04-20 22:33 ` Steve Nickolas
2017-04-20 23:28 ` Pete Turnbull
2017-04-20 23:19 ` Harald Arnesen
2017-04-21 0:03 ` Andy Kosela
2017-04-23 17:58 ` Michael Welle
2017-04-20 12:34 Noel Chiappa
2017-04-20 13:41 ` Mutiny
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