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[107.193.50.41]) by smtp.gmail.com with ESMTPSA id h66-20020a9d2f48000000b0066c483fdb4dsm2261208otb.4.2022.11.12.09.13.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 12 Nov 2022 09:13:11 -0800 (PST) Received: from smtpclient.apple (zaphod.local [IPv6:fe80::8a4:3b4d:5ddf:c3ad]) by kdbarto.org (Postfix) with ESMTPS id D39813E89A2B; Sat, 12 Nov 2022 09:13:09 -0800 (PST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3696.120.41.1.1\)) From: David Barto In-Reply-To: <202211121652.2ACGq6Pf015000@freefriends.org> Date: Sat, 12 Nov 2022 09:13:09 -0800 Content-Transfer-Encoding: quoted-printable Message-Id: References: <202211121652.2ACGq6Pf015000@freefriends.org> To: Aharon Robbins X-Mailer: Apple Mail (2.3696.120.41.1.1) Message-ID-Hash: DKIHG7YDR7QNRJY374EWLYVHSV75SE65 X-Message-ID-Hash: DKIHG7YDR7QNRJY374EWLYVHSV75SE65 X-MailFrom: kdbarto@gmail.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-tuhs.tuhs.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: tuhs@tuhs.org, simh@groups.io X-Mailman-Version: 3.3.6b1 Precedence: list Reply-To: david@kdbarto.org Subject: [TUHS] Re: DG UNIX History List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: I worked on the DG-UX software porting device drivers to it. It wasn=E2=80=99t a Unix port, it was a complete re-write from the = ground up. The interfaces to the drivers was different and the internal locking = mechanisms were unique to the OS. I=E2=80=99d never seen anything like it before, = or after. David > On Nov 12, 2022, at 8:52 AM, arnold@skeeve.com wrote: >=20 > I'm pretty sure that DG never ported DG-UX to the Nova. There was > a native port to the Eclipse (32 bit). There was also a Eunice-style > Unix environment that sat on top of their native OS, whatever it was > called. >=20 > When I was working there, DG gave the Georgia Tech School of = Information > and Computer Science an Eclipse running their native OS in the early > mid-80s. I didn't do much with it, and I suspect that nobody else = there > did either. >=20 > I'm bcc-ing Scott Lee, who was the admin for that machine at the time; > maybe he remembers more. >=20 > There was a guy who worked at DG and contributed a lot of the Motorola > 88000 code to GCC whose name I don't remember, although I met him > at a USENIX. If someone else remembers who this is, maybe he can > be tracked down for more info. >=20 > DG-UX was a pretty generic SVR3 (and later SVR4) system, IIRC. >=20 > In any case, DG-UX on the Eclipse preceded it on the 88000. >=20 > I hope this helps, >=20 > Arnold >=20 > P.S. For the youngsters here who've never heard of it, I highly > recommend Tracy Kidder's "The Soul of a New Machine" about the > development of the Eclipse. = (https://www.amazon.com/Soul-New-Machine-Tracy-Kidder/dp/0316491977/ref=3D= sr_1_1?keywords=3Dthe+soul+of+a+new+machine+by+tracy+kidder&qid=3D16682717= 20&sprefix=3Dthe+soul+of+a+new%2Caps%2C233&sr=3D8-1). >=20 > It was originally written in 1982 - 40 years ago! >=20 > Clem Cole wrote: >=20 >> This recent activity on the simh mailing list WRT to DG Nova and >> Ecpilse got me wondering. At Locus in the 80s and 90s, we did a lot = of >> work with DG and DG-UX with their later MP-based ports using = commercially >> available microprocessors (which I have reported was a very nicely = done >> system, easy to work on, the locks tended to scale well, e*tc*.). >>=20 >> But I am trying to remember if C or UNIX was on a Nova or an Eclipse. = This >> could be my failed memory, given that so many people ported V7 in the = late >> 1970s (the infamous 'NUIX' bug from the Series/1 port probably being = my >> favorite tale). So to the hive mind, did anyone (DG themselves or a >> University) ever build 16 or 32-bit tools for the DG architectures = and do a >> UNIX port, and if so, does anyone know what became of those efforts? = Is >> this something that needs to be in the TUHS archives also? >>=20 >> Clem >> ???