I can successfully connect from a VAX (4000-700a) running VMS v7.3 to
the PDP-11/53 (again, running RSTS/E v10.1) via:
$ set host/appl=rterm 61.4
Terminal control is a bit wonky, but it works. This is what crashes
from the Alpha running VMS v8.3.
I can also add that
$ set host/appl=rterm 61.4
crashes out in a similar way on an Alpha running V8.2. However, it can be used
to successfully connect to a VAX running VAX/VMS V5.5-2. On the other hand,
VAX/VMS V5.5-2 does not have the /APPLICATION qualifier to SET HOST so
outgoing RTERM connections are not possible from it.
Regards,
Peter Coghlan.
Hello!
I went back to that same Wikipedia page, cf.
http://en.wikipedia.org/wiki/PDP-11 and making my way further down and
after the PDT-11 family I found that crowd:
SBC 11/21 (boardname KXT11) Falcon and Falcon Plus single board
computer on a Qbus card implementing the basic PDP-11 instruction set,
based on T11 chipset containing 32 KB static RAM, two ROM sockets,
three serial lines, 20 bit parallel I/O, three interval timers and a
two-channel DMA controller. Up to 14 Falcons could be placed into one
Qbus system.
KXJ11 QBUS card (M7616) with PDP-11 based peripheral processor and
DMA controller. Based on a J11 CPU equipped with 512 kB RAM, 64 kB ROM
and parallel and serial interfaces.
What I am thinking of is taking one of each and putting them into a
card cage. Of course the other issue that's, ah, fuzzy at best, is
finding them. The page also shows individual processors, the F-11 or
the J-11 ones.
Again group I am only thinking here. The incredibly big problem is
still the obvious, that of finding them, and then a card cage. And no
I've not even got a basket of clews here to explain where I am going
with this one.
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."
From: Dave McGuire <mcguire at neurotica.com>
JOHN! You're alive! How have you been?
Totally sidetracked with scatterbrained hardware projects!
(Anyone who hasn't at least *looked* at the XMOS XS1 microcontroller
has been WASTING THEIR LIFE! They are exceedingly cool, and perfect
for bit-banging weird things like old DEC busses.) Clearly I've been
missing a lot of fun HECnet chatter. How's life with you?
I'm just accustomed to RSTS/E and RSX-11M, "big" OSs. Little ones don't
really do much for me. That's all.
Actually I have the same bias, so adjusting to RT after an earlier RSTS life
was a shock, but the way the tiny pieces fit together is really beautiful.
.READC/.WRITC and .SPND/.RSUM are trivially simple but getting the same
functionality on a supposedly "modern" OS is such a pain...
John Wilson
D Bit
I can successfully connect from a VAX (4000-700a) running VMS v7.3 to
the PDP-11/53 (again, running RSTS/E v10.1) via:
$ set host/appl=rterm 61.4
Terminal control is a bit wonky, but it works. This is what crashes
from the Alpha running VMS v8.3.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
Hi all
Got word from Steve Davidson in NH (USA) that he is without Internet access most likely due to what is left of Sandy. He'll advise when he's back on the "air".
Fred
----
Lets call it for what it is - "legacy" is a term that people use in a
polite but derogatory manner to imply that the future direction they
prefer is not that which they view as the current direction.
On Tue, Oct 30, 2012 at 1:06 AM, John Wilson <wilson at dbit.com> wrote:
From: Dave McGuire <mcguire at neurotica.com>
I had a PDT-11/150 many years ago, mid-80s. It was kinda fun, but
also kinda pointless. The only thing you can run on it is RT-11.
I had one too back then and had a blast! RT-11 is terrific (infinitely
better than contemporary microcomputer OSes), and anyway a 150 will run
pretty much anything an 11/03 will run (but with 30 KW of memory instead of
just 28) so it's really pretty flexible. I wrote a FORTH-79 system on mine
(including a stand-alone 4-user version with a blinky NULJOB display on the
two LEDs), and a PDP-8 cross-assembler, and one side of a two-user "pong"
game that worked over the modem, and ported Small-C to it, and did a zillion
other things I don't even remember. Something or other with a Microsoft
serial mouse plugged into the modem port? It was such a great machine!!!
John Wilson
D Bit
Hello!
Actually, Dave, and you too John, those are two of many reasons why
I'd give one of my lives for finding one of those things. I naturally
have other reasons that're too numerous to mention. In fact I have to
updated my website at http://www.gregg.levine,name which insists that
on the equipment wanted page its just the PDP-11/23 and the PDP-11/53
who're wearing those interesting features, to now include one of those
little devils.
For example Dave if you come across the guts to actually build one of
the PDT-11/150 and such like but have nothing for it to do then I'll
be glad to accept it, of course there are other issues a foot.
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."
Yes.
-Steve
-----Original Message-----
From: owner-hecnet at Update.UU.SE
[mailto:owner-hecnet at Update.UU.SE] On Behalf Of sampsa at mac.com
Sent: Monday, October 29, 2012 22:34
To: hecnet at Update.UU.SE
Subject: [HECnet] RSTS/E + DECNET 4.1
Has anyone actually managed to get this to work (i.e. RSTS/E
+ DECNET 4.1)? :)
Sampsa
On 10/30/2012 01:36 PM, Cory Smelosky wrote:
I would kill for a VT180, I don't know why I like CP/M machines
but that would just make such an awesome OPA0 for CHIMPY
I'm kinda shocked to see that you wouldn't be able to run NetBSD
/on/ a VT180 ;)
Z80...no MMU, 16-bit address space
Ah, right. I keep forgetting how old the Z80 actually is and the fact
it doesn't offer too much in the way of anything beyond small
embedded stuff now.
And lots of VERY enjoyable retrocomputing.
Hmmm, I've been reminded of that project someone accomplished once:
simh + a phone + a vt100. But instead someone could go: simh +
raspberry pi + VT180 ;). Hide the pi within the cabinet, implement a
little piece of software to go between simh and a real serial
interface (or can simh interface directly now?) and run VMS "in" a
VT180.
That's certainly doable. With most any of the VT family, I'd say.
Was CP/M in ROM on the VT180?
Nope, booted from 5.25" floppy from an RX180 disk subsystem.
You'll be able to see one when you come visit, though I can't find
the floppy cable.
Aww, shame you can't find the cable. :(
Yeah. I have the pinout, and it's DC37<->DC37, which I should have
some of somewhere, so I will make one if it comes down to that.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
On 30 Oct 2012, at 15:39, Dave McGuire <mcguire at neurotica.com> wrote:
On 10/30/2012 03:36 PM, Cory Smelosky wrote:
Sent some emails your way, let me know if your spam filters thought I
was spam and they didn't reach you. (I don't want to see bothersome
about this, I just don't trust spam filters to not consider me a
false-positive. It's happened before with gmail and others which is
interesting because I use google apps for email...)
Yup, got 'em, all is well, just busy today. I'll get caught up in a
few hours.
Okay, cool.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
