All, very off-topic for TUHS but you have a bounty of experience. If any
of you have Intel ia64 skills and/or fixing compiler back-end bugs, could
you contact me off-list? I'm writing a back-end for the SubC compiler and
I have 'one last bug'™ before it can compile itself, and I'm stuck.
Details at: https://minnie.tuhs.org/wktcloud/index.php/s/QdKZAqcBytoFBkQ/download?path=…
I’ve seen it said a couple of places that the DG/UX kernel was an almost complete rewrite and rather well-done.
Have any details been preserved? There’s not a whole lot out there that I’ve been able to find about DG/UX or the AViiON workstation series (whether 88K or Intel x86).
PS - I’ve found that my asking around has prompted some people to put things online, so may as well keep asking in various places. :)
Ok. I know there was never a v6.5... officially. But there are several
references to that in different bits of the early user group news letters.
This refers to v6 plus all the patches that "leaked" out of bell Labs via
udel and Lou Katz.
My question is, have they survived? The story sure has, but I didn't find
them in the archive..
> From: Jeremy C. Reed
> "PDP-11 that had PDP-10 memory management, KS-1." ... What is this
> PDP-11 and KS-1? Maybe this is the PDP-11/20 with KS-11?
Yes. The reference to "PDP-10 memory management" is because apparently the
KS11 did what the PDP-10 MMU did, i.e. divide the address space into two
sections. (On the -10, one was for code, and one for data.)
Alas, next to nothing is known of the KS11, although I've looked. There's a
mention of it in "Odd Comments and Strange Doings in Unix":
but it doesn't say much.
I read in the PDP-7 reference manual that Precision CRT Display Type 30
and Precision Incremental Display Type 340 are the typical displays used
with the PDP-7, but aren't standard equipment. I read about the
Graphics-II scope. Was it the only display? I read it was used as a
second terminal and that it would pause per display full with a button
I assume this second terminal's keyboard was TTY model 33 or similar
since it was the standard equipment. Does anyone know?
Do you know if the PDP-7 or early edition Unixes have pen support for
that Graphics-II or similar displays?
Clem has written that the PDP-7 had a disk from a PDP-9. Where is this
The ~1971 draft "The UNIX Time-Sharing System" says first version runs
on PDP-9 also.
But I cannot find any other reference of running on PDP-9 at all. Was
That draft calls the PDP-7 version the "first edition" but later the
PDP-11/20 is called the "first edition". When did the naming of first
edition get defined to not include the PDP-7 version? Or is it because
the early "0th" version was never released/shared outside?
mentions an "interim machine" and a "PDP-11 that had PDP-10 memory
management, KS-1." What is this interim machine? Is this a PDP-11
without a disk (for a few months?) What is this PDP-11
and KS-1? Maybe this is the PDP-11/20 with KS-11?
Do we know what hardware was supported for the early editions? We don't
have all the kernel code and from a quick look from what is available I
didn't see specific hardware references.
The later ~1974 "The UNIX Time-Sharing System" paper does mention some
hardware at that time on the PDP-11/45 like a 201 dataset interface and
a Tektronix 611 storage-tube display on a satellite PDP-11/20.
When did a CRT with keyboard terminal like DEC vt01 (with Tektronix 611
CRT display), LS ADM-3, Hazeltine 2000, VT01A display with keyboard
(what keyboard?) get supported? Any code to help find this? (The
https://www.bell-labs.com/usr/dmr/www/picture.html does mention the
VT01A plys keyboard).
Jeremy C. Reed
echo Ohl zl obbx uggc://errqzrqvn.arg/obbxf/csfrafr/ | \
tr "Onoqrsuvxzabcefghl" "Babdefhikmnoprstuy"