I'm looking for printset (or copy)for DECMATEIII so I can do my own
periherals. I have most of the stuff from the net in the way of specs
and docs, what I need is a schematic.
Allison
On May 17, 13:09, Seth J. Morabito wrote:
> I have a silly question -- has anyone gotten a PDP-11 emulator (Bob
> Supnik's emulator, in my case) to run the distribution of 2.9BSD UNIX
> that can be had from sunsite.unc.edu?
>
> Personally, I haven't successfully gotten either to boot. I made a
> bootable tape by dd'ing together the tape images as per the instructions,
> but it doesn't boot. Neither does the RL02 image. They both hang
> somewhere during the booting process and get stuck in an infinite (or
> nearly infinite, at least) loop.
Do they really hang, or just sit waiting? I've never used 2.9, but 2.11
normally waits for you to type CTRL-D at a critical point. 7th Edition
just prints an "@" prompt from a hardware boot, and waits for you to type
"boot" (which gives you a "Boot:" prompt, to which you'd normally respond
"rl(0,0)unix").
Does 2.9BSD really fit on an RL02?
If they really do hang, it's possible you've run foul of a bug in the
emulator - older versions have a bug in the floating point, though I'd be
surprised if that affected booting.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
Anyone know what the clock speed of the 4004 is? Courson's web page
mentions it not.
Sam Alternate e-mail: dastar(a)siconic.com
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<which was the first UNIX port to a non-DEC machine? I seem to recall bot
<UNIX and C were spawned around 1968 or so, but the first UNIX micro
By 1978 it had been ported to Interdata 8/32, Honeywell 6000 and IBM
System/370. This information was obtained from the preface of
"The C programming language" Kernighan and Ritchie.
There is no question in my mind that Unix (and flavors) is the most widely
ported(to different platforms) OS of them all. CPM is likely a close
second as most widely implemented on platforms with similar CPU but often
radically different IO. The reason I added this is like unix, CPM ran on
8080 (z80, z180, z280, NSC800), 8086 (8088, 80186...) and 68000. UCSD
Pascal P-system is the only other that was ported to non similar CPUs
like 8080/z80, PDP-11, 6502 (Apple][), wd microengine.
Allison
<Does anyone here know if <italic>Spacewar</italic> was ever ported to
<the Kenback, Mark-8 or Altair 8800? Any information on early games for
<these machines (even ports of basic games like Advent) would be very
<enlightening...
Can't speak for the other systems but, space war, lunar lander, TREK
(aka startrek), Adventure were all run on the s100 8080 systems that
include the altair.
I have a box of 8" media (CPM) with adventure, zork(I,II, III) and at
least 30 other titles maybe more.
Allison
<> PDP11/74,
<
<Did DEC ever market these, or were they (all four of them, or
<whatever) just a last ditch effort to save the PDP-11/70 line?
No, never marketed. Accoring to some they were built with existing
parts. It was not persued because it would eclipse the vax and the
11/70 design was not emi/rfi complient and would be very difficult to
make it so. At the time the 16 bit mini market was seen to be getting
smaller in favor of the 32bit superminis.
<Certainly, although the PDP-12s might be close to being kicked off the
<"very rare" list. I hesitate to add the KS-10s, as I think there are
<probably more of them hidden away (or maybe actually doing work!) than w
<think.
When you consider there were no more than a 1000 of either that's pretty
scarce if 1-2% still survive.
Allison
<Anyone know what the clock speed of the 4004 is? Courson's web page
<mentions it not.
I'd guess around 500khz (typical for silicone gate Pmos) but the published
instruction cycle time is 10.8uS(likely a trivial register move). It took
something like 4-5 clock cycles to get an instruction cycle minimum as
address (4bits at a time were output) and instruction was input the same
way. Instruction could and did take several cycles so this CPU was NOT
fast. ;)
Allison
<I bet it made some of the Big Blue types sick!
Why? There was a version of the selectric design and used as a keyboard
printer. I've seen them on tandy, NS* and others with both serial and
parallel ports. Duratec was one company selling them configured that way.
The serial ones used 134.5baud! Not only did they print well and reliably
they had different typeballs. As printers went they were fairly quiet
too.
Allison
That's exactly right. An obscure (by today's standards for sure, but
<don't know about back then...the references in the trade literature of th
<era are scarce) company that made S-100 boxes in the '75-'77(?) timeframe
<The one I have is very small, measuring about 12" wide x 5" high by 18"
<deep. It has a small, 4-slot backplane and a power supply, with not muc
<room left over internally for much else.
Nice boxen, then had others in the line. The small 4-5slot was used for
the POLY-88 a real small s100 system. I wouldn't mind finding a 4-5 slot
box as I could put a fully complete system in that (z80, 64kram, FDC,
4port serial).
Allison
