> It great to have such a detailed description of the DM PDP-6.
I hope you're not being serious! There was almost no detail there. But...
> I suppose that since the DynaMod group got their 10 shortly after the 6,
> they may have focused on getting the 10 up and running. Maybe they
> didn't bother to make the 6 run in timesharing mode.
I think all the DM people are still around - why not ask one of them for more?
Probably best to start with Al Vezza, the group leader; I don't have a
guaranteed e-mail for him, and a quick Google didn't show a page for him
anywhere, but the e-mail address on his WWW resignation note page is the same
as the one on his MIT information entry, so maybe it still works.
Jack Haverty was in the group for a while early on, too:
http://mailman.postel.org/pipermail/internet-history/2012-May/002288.html
Another possibility is P. Dave Lebling (PDL). Or Tim Anderson (TAA) if you
can't get ahold of him.
Noel
Hi
There has been so much PDP and other stuff lately I kind of feel out of place
asking about 6502 stuff.
Anyway, I've mentioned on the 6502.org that QuickSort is not always the fastest
sort. So I wrote a 6502 assembly sort but don't have a machine big enough to test it
on. I've only got my KIM-1 just working.
I was hoping someone would like to help me out, possible a Commodore64,
maybe even a PET or Apple II.
It needs about 24 page zero bytes and about 5K of RAM.
It sorts 1K of 16bit integers.
Anyway, if someone would like to help, let me know. I've made several passes
through the code and believe it to be close to bug free but know I'm bound
to have a couple left.
See it as a challenge!
Thanks
Dwight
Hi,
Recently I acquired pretty nice VAXstation 3100/30. It has GPX graphics
card, two RZ23 disks (one dead, second cause short circuit but after
removing tantalium capacitor on +12V line looks to be working) and MS42-AB
4MB memory extension card. Installed NetBSD under SIMH and disk image will
be moved to physical drive when I will find one (100MB is not enough). But
the bigger problem for me is to find 12MB or 16MB memory extension for this
machine. So I'm looking for MS42-BA or better MS42-CA (16MB) card. Maybe
there is somebody who is willing to part with it. My location is Poland.
Best regards
Jacek
Hi folks,
I have an HP1631D Logic Analyzer for some years now und got an HP9121
dual Floppy drive that fits to it yesterday.
I've tested the drive, formating disks, storing and reading data ist
working :-)
While reading the Users Manual of the LA I've found out that besides of
storing setup- and configuration data on the disk, there should some
loadable disassemblers for the HP1631D exist on floppies..
The Logic Analyzer is very limited from todays point of view but for
example an Z80 disassembler where nice to have.
Has someone out here such disassemblers (Z180, 8085, 8080, 6809 etc)
for the HP1631D?
BTW: My unit has an "upgraded from HP1630" printed on the faceplate..
are there possibilities to upgrade it further? More Memory etc?
..same Question for the Dolch (DLI) C100D, there should exist some ROM
based Disassemblers and I'm looking fors uch Eprom Contentes.
Currently I have additionally two Dolch 64300 with some additional
Software here, but the Eproms don't fit in to the later C100D.
Thats ugly, since the C100D is much smaller....
Regards,
Holm
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Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583
info at tsht.de Fax +49 3731 74200 Tel +49 3731 74222 Mobil: 0172 8790 741
hello,
somewhere around I should have a floppy with disassembler for HP1660 series.
I suppose it is useless for 1630... or not?
Should I give a look to find it?
Andrea
Hi all --
The TI 980B I got from that NWA auction from a month or so ago finally
made its way back to my house, and the CPU looks to be in decent shape.
I'll probably start working on restoring it after the new year.
Bitsavers has ample documentation, but I haven't found much software at
all -- I don't suppose anyone out there's got any tucked away somewhere?
I've found this: http://www.cozx.com/dpitts/ti980.html which provides a
nice cross assembler/linker and simulator so I guess I can write my own :).
I was hoping there'd be a bit more to the system than the CPU, but the
rack it came in was effectively empty apart from the CPU, a gigantic
power supply and an empty backplane and card-cage. There was a stack of
documentation included, so now I know that this TI was originally part
of an Evans and Sutherland "NOVOVIEW 2500" -- a "Night Only View" flight
simulator that used a set of point-plotting X/Y beam-penetration
displays (red/orange/amber/yellow/green colors) to simulate a runway at
night. (These were the DSI displays that were auctioned off as a
separate lot, wish I'd known what they were at the time...) Pretty
interesting, a shame all of the cool hardware was stripped out at some
point. Based on the printout stuck in the Omni 800 that came with it,
this was in use through at least 2000.
Thanks,
- Josh
-------- Original Message --------
Subject: Re: ADM-3A Lower case ROM issue
From: J?rg_Hoppe <j_hoppe at t-online.de>
Date: Wed, December 14, 2016 9:00 am
To: cctech at classiccmp.org
By accident, I just now restored an ADM3 (not the "A")!
Lowercase ROM was made with an pin-rearranged 2706 EPROM.
Additional RAM was inserted, DIP switches were set: works perfectly.
However, with lowercase ROM installed and DIP switches set, but extra
RAM missing,
the Space "0x20" was displayed as a " ` ".
So I think you have an RAM issue.
Perhaps cleaning the socketed extra RAM helps?
Joerg
----
Thanks - that sounds like my symptoms exactly. I'll check out the RAM.
Steve
----
Well, there you go. The sockets for two 2102 RAM chips are empty!
Anybody have a couple of these guys they can spare, or a quick pointer
on where to buy them?
Thanks all, esp. Joerg for the tip!
Steve
> From: Rich Alderson
> 9-track tapes on the PDP-10 used one of the following encodings:
What about 7-track, any idea? I would assume 6 x 6-bit tape frames per 36-bit
word, but that's just a guess.
Noel
I've been looking for an SS-30 bus floppy controller for some time now.
Examples would be DC2/DC3/DC4/DC5, but I would also be OK with a Pertec
or SSB. Anyone have one that they would be willing to part with?
