In general, I agree.The problem is not that someone should document
things, but that a specific someone has to make the time available and
do it... A volunteer community doesn't automagically do things.
I believe GitHub allows setting up a wiki - if someone cares to manage it.
In this case I
On 21-May-15 15:44, Alan Frisbie wrote:
Before I dig too deeply into this problem, I thought I would ask
if anyone else has seen it, or has some insight.
I am running a relatively recent (mid-April) version of the
PDP-11 simulator on my Alphastation XP1000 with VMS v8.4.
The simulated PDP-11
On 21-May-15 15:54, Alan Frisbie wrote:
On 05/21/2015 12:47 PM, Mark Pizzolato - Info Comm wrote:
sim set ts0 format=tpc
sim show ts0
TS0 not attached, write enabled, TPC format
unlimited capacity
sim attach -n ts0 newrsx11s.tpc
File open error
sim
Simh does not
On 21-May-15 22:38, J. David Bryan wrote:
On Thursday, May 21, 2015 at 18:04, Timothe Litt wrote:
If it isn't in the repo, it might as well not exist.
It's hidden at the SIMH Web site:
http://simh.trailing-edge.com/
...behind the link in the phrase, Also available is a collection
On 13-May-15 16:48, Cory Smelosky wrote:
Hello,
I initially thought this was time-dependent, but that only seems to be
when running the 1988 DEC bootstrap monitor.
BOOT[1,5]newsys
[Loading from DSKB:NEWSYS.EXE[1,5]]
MINNIE 14-May-15
Why reload: halt
Date: 17-may-2015 ; (testing to see
The first part is self-explanatory. QUASAR looks for SPOOL: (usually
ps:spool)
early in initialization. It's not there. It's possible that the
logical name is not/mis
defined. Either RCDIR% or GTDIR% returned Structure is not mounted. If
you believe the successful crash saved in
On 10-May-15 21:35, Clem Cole wrote:
On Sun, May 10, 2015 at 5:47 PM, Timothe Litt l...@ieee.org
mailto:l...@ieee.org wrote:
It might be Ultrix CDFS - anyone know that format/a linux tool?
This question is causing some random bits in my memory FS to slowly be
retrieved but have
In exploring my archive of backup tapes, I found a non-backup tape image
that is rather curious.
It's an ANSI labeled tape, D format blocked 54 512-byte records/block.
The second volume says it's U format, but in fact the D format continues.
Stripping the RCWs, I get 8-bit data with a header
On 10-May-15 13:07, Cory Smelosky wrote:
Hey,
Trying to figure out if this is an issue with the install or an
obscure SIMH bug.
PDP-10 simulator V4.0-0 Betagit commit id: 3b8c318b
Listening on port 2020
BOOT
[PS MOUNTED]
SETSPD: TERMINAL 1-40 SPEED 200
System restarting,
On 03-May-15 00:14, Cory Smelosky wrote:
Hey,
I've converted a tape with `tapedd` and it's in simh format.
However...it seems the record size is not what it wants :(
record length 2448, expected 2720 is output by t10backup, and BACKUP
under TOPS-10 says it's non-backup-format. I have
On 03-May-15 13:38, Cory Smelosky wrote:
On Sun, 3 May 2015, Timothe Litt wrote:
https://github.com/tlhackque/backup36 contains a pre-release of the
tape36 component of backup36.
Works.
Good. Thanks for letting me know.
It seems to behave as expected, however it likes to ... dump core
On 30-Apr-15 20:41, Johnny Billquist wrote:
On 2015-05-01 02:03, Timothe Litt wrote:
On 30-Apr-15 19:13, Cory Smelosky wrote:
On Thu, 30 Apr 2015, Timothe Litt wrote:
KL only (KLIPA = KL - CI adapter). No CI adapter for the KS.
Of course, the curious mind, especially in the light of where
On 30-Apr-15 18:21, Mark Pizzolato - Info Comm wrote:
On Apr 30, 2015 1:46 PM, Clem Cole cl...@ccc.com wrote:
On Thu, Apr 30, 2015 at 4:20 PM, Rich Alderson
s...@alderson.users.panix.com wrote:
Striping came along with redundant arrays of
inexpensive disks. At $50,000 a drive,
On 27-Apr-15 14:56, Cory Smelosky wrote:
On Mon, 27 Apr 2015, Timothe Litt wrote:
One clue: iprout.mac references an IP address owned by the Royal
Institute of Technology in Sweden.
...This is getting absurd. Just how many stacks exist?!
That I know of? For IP?
DEC had a TOPS-20 TCP/IP
I took a quick glance at some of the files.
That's definitely not DEC code. And it's not the UNASER.MAC that I
started/referenced.
It's some 3rd party. Note that it uses customer CALLI numbers (negative).
It appears to be TCP support (or a partial attempt) - there is no
DECnet support
It's
On 27-Apr-15 14:43, Rhialto wrote:
On Mon 27 Apr 2015 at 14:27:22 -0400, Timothe Litt wrote:
Trying to port TCP utilities to the -10 would be non-trivial. Somewhere
there IS a C compiler for the -10. But 36-bit words; 6, 7, 8 9 bit
chars; location 0 being a valid AC address and a few
Message-
From: Simh [mailto:simh-boun...@trailing-edge.com] On Behalf Of Timothe Litt
Sent: Sunday, April 26, 2015 6:32 AM
To: simh@trailing-edge.com
Subject: EXT :Re: [Simh] PDP-10 simulation: DEUNA support help needed
Although I started to write a TOPS-10 DEUNA driver as a midnight project
Although I started to write a TOPS-10 DEUNA driver as a midnight
project, I never finished it. So far as I know no one else did,
although the configuration support did find its way into the monitor.
Sadly, there were (and are) only so many midnights, but the supply of
projects is infinite.
On 13-Apr-15 01:21, khandy21yo wrote:
Bad blocks
No. Bad blocks for MASSBUS disks are within the
non-maintenance cylinders, and tracked in the BAT blocks.
See my previous note for the correct explanation.
For MSCP disks, spare blocks (a.k.a. the RCT that the controller uses
replace bad
On 13-Apr-15 01:07, Rob Doyle wrote:
I'm designing an RH11 disk controller for my KS10 FPGA. I'd like to
use the SIMH data format for the media.
I noticed that an RP06 disk image from SIMH is 315,187,200 bytes.
Assuming an RP06 has 815 cylinders, 19 heads, 20 sectors (confirmed
in SIMH
On 13-Apr-15 08:20, Bob Supnik wrote:
Your original calculation is correct. There are 815 cylinders, 19
heads, 20 sectors, and in the simulator, the sectors are 128 64b words
(or 1024 bytes).
Yes - you can also look at them as 256 18-bit bytes packed into 32-bit
words on-disk, which is closer
On 11-Apr-15 18:20, Alan Frisbie wrote:
The CPU looked very much like a 16-bit PDP-8, which should be
almost trivial to simulate. The GPU would be a bit trickier,
as it would have to draw lines on the host's display. The real
problem, as I see it, would be how to have *two* simulated
On 05-Apr-15 00:26, Michael Short wrote:
I have been trying to run a BACKUP job but I can't seem to
get the commands right to get the tape mounted. I keep getting
the message ?BKPCOM Can't open MAG tape when I issue the TAPE
command.
I think it has something to do with the ALLOCATE or MOUNT,
I've definitely been using RSX-20F on a KL-10 myself a few times. On
our machine it certainly did not take anything close to a minute to
get the command parser. It took a couple of seconds.
Did you run on a DECtape based system or something? Actually, since it
booted of the RP06 anyway, the
Look for the TOPS-10 monitor installation guide on bitsavers.
It has the full dialog along with the procedure.
This communication may not represent my employer's views,
if any, on the matters discussed.
On 19-Mar-15 19:15, Cory Smelosky wrote:
Can someone give me an example of RSX-20F booting
On 19-Mar-15 18:43, Johnny Billquist wrote:
All true. Except I don't think VMS actually do relocation at load
time. The VAX instruction set was capable enough that pretty much all
code you ever wrote was already PIC. The only things to resolve were
external symbols, but I don't think VMS
On 19-Mar-15 10:13, Johnny Billquist wrote:
Just re-read the RSX-20F manual (I had almost forgotten I had read it
before).
In that manual, it is described in pretty good detail that they
essentially just have an unmapped RSX-11M system. They added a device
driver for the DTE-20, and a
On 07-Dec-14 01:18, Johnny Billquist wrote:
On 2014-12-07 07:07, Peter Svensson wrote:
On 2014-12-07 02:03, Timothe Litt wrote:
On 06-Dec-14 19:16, Mark Pizzolato - Info Comm wrote:
After a little more thought, I realize that although this (using
'#!/usr/bin/vax' )
will work for basic
On 23-Oct-14 11:08, Cory Smelosky wrote:
Interesting...now if only SIMH simulated a KI10 to go with it!
Sent from my iPhone
That would be a major project - with not much of a return in terms of
enabling more software to run.
The KI has a completely different I/O structure from the KS, and
On 23-Jul-14 14:39, Kevin Handy wrote:
I think that adding all of this complexity to simh to handle one load
type might be a bit overkill. After adding elf support, you will
probably need to add VMS, RT11, RSX, etc... support.
I think that it would be better to create external utilities that
Someone please point out if I'm wrong about this.
It's not that simple. You are, and you aren't.
TOPS-10/20 PSI (X.25) required a DN20; the X.25 gateway software lived
there.
The KS hardware could not connect directly to the X.25 network. The KDP
could have done it, but no driver or
On 06-Sep-13 05:25, Johnny Billquist wrote:
[snip]
do you have any examples of what you mean when you say different models
do different amounts of work in a single cycle?
This generally applies to CPU implementations - how wide the ALU is, how
many functional units allow parallel/pipelined
DEC shipped a product kit for DECnet that was simply a patch to enable
it. It's kicking around the net.
Phase III is useful because Phase II nodes (and TOPS-20 on the KS is
one) can talk to it. DECnet provided compatibility, but only between
adjacent Phases...
So with a Phase III node,
discussed.
On 02-Aug-13 12:24, Johnny Billquist wrote:
On 2013-08-02 13:02, Timothe Litt wrote:
DEC shipped a product kit for DECnet that was simply a patch to enable
it. It's kicking around the net.
Are you talking about for VMS now, or something else...?
Phase III is useful because Phase II
3.0.0
00 SYSVER length (it's omitted by TOPS-20)
Google AA-D600A-TC for the corresponding spec.
This communication may not represent my employer's views,
if any, on the matters discussed.
On 02-Aug-13 13:20, Johnny Billquist wrote:
On 2013-08-02 19:08, Timothe Litt wrote:
TOPS-20 for the KS
and PAK for sync line support on
the 3900; I have the physical kit (and PAK) for my system.
This communication may not represent my employer's views,
if any, on the matters discussed.
On 07-Jun-13 20:28, Mark Pizzolato - Info Comm wrote:
On Friday, June 07, 2013 at 5:11 PM, Timothe Litt wrote
Inline
This communication may not represent my employer's views,
if any, on the matters discussed.
On 07-Jun-13 20:59, Zane H. Healy wrote:
At 8:10 PM -0400 6/7/13, Timothe Litt wrote:
Second, many of our plans assume a decnet router. VMS VAX requires
the DVNETRTG PAK to enable
I've decided to try my hand at building a TOPS-10 with DECnet on a
KS10/simh. I followed a lot of the discussion of this a couple of
months ago, but I'm not sure where it all ended. Can anybody point me
to a copy of the PDP10 simh with the latest DMR/KDP support?
Here's what I know:
Rob
...@trailing-edge.com wrote:
--
Message: 2
Date: Fri, 07 Jun 2013 17:58:40 -0400
From: Timothe Litt l...@ieee.org mailto:l...@ieee.org
To: Mark Pizzolato - Info Comm m...@infocomm.com
mailto:m...@infocomm.com,
simh@trailing-edge.com mailto:simh@trailing-edge.com
DUP-11 is a comm device - sync line controller.
The DUP protocol is part of the packet-based mass storage protocols used
by CI (e.g. HSC), DSSI, and UQSSP controllers.
Yes, it's Diagnostic Utility Protocol. It's used for configuring,
monitoring and running diagnostics on the embedded
hardware or programming errors.
My suggested changes should not break the CR.
This communication may not represent my employer's views,
if any, on the matters discussed.
On 27-May-13 08:37, Mark Pizzolato - Info Comm wrote:
On Monday, May 27, 2013, at 5:23 AM Timothe Litt wrote:
On 27-May-13
, on the matters discussed.
On 27-May-13 10:43, Tom Morris wrote:
On Mon, May 27, 2013 at 10:14 AM, Timothe Litt l...@ieee.org
mailto:l...@ieee.org wrote:
Does anyone know how to (on windows or Linux) convert a scanned
image in a modern format (bmp,jpeg,tiff, etc) to xpm?
ImageMagick supports
,
if any, on the matters discussed.
On 27-May-13 10:58, Tom Morris wrote:
p.s. Love this quote from the card format documentation page
On Mon, May 27, 2013 at 10:14 AM, Timothe Litt l...@ieee.org
mailto:l...@ieee.org wrote:
http://homepage.cs.uiowa.edu/~jones/cards/codes.html
http
:00
? Mismatch occurred during verification:
Currently installed file: PS:DECNETDECNET.DOC.1 350434 P
Correct file: PS:DECNETDECNET.DOC.1 614303 P
They suggest that the docs are not right, but nothing else.
Regards
Rob
-Original Message-
From: Timothe Litt
installed file: PS:DECNETDECNET.DOC.1 350434 P
Correct file: PS:DECNETDECNET.DOC.1 614303 P
They suggest that the docs are not right, but nothing else.
Regards
Rob
-Original Message-
From: Timothe Litt [mailto:l...@ieee.org]
Sent: 27 May 2013 14:35
To: Robert Jarratt
Comm wrote:
On Monday, May 27, 2013 at 6:19 AM, Timothe Litt wrote:
This thread is getting far too messy.
The increment problem found by Rob is NOT subtle. It's just plain broken.
I agree 100%.
The code, as written, would write twice as much simulated memory as intended
which usually would
wrote:
On 5/27/13 7:36 AM, Al Kossow wrote:
On 5/27/13 7:14 AM, Timothe Litt wrote:
I have some blank punch cards, I should scan one as it only comes
with some customized images.
I can make a high resolution scan of a buff 5081 if it's needed.
I just uploaded a scan of four different 5081
First, remember:
COMMENT @
EHPL MI RTPADE NIISED A DP1P1
END OF COMMENT @
Besides setting the correct bit(s), you need to tell simh to generate
the interrupt (to the proper vector). Assuming you're doing that, from
the
A couple of other things come to mind (naturally, after pushing 'send'):
Initialization will load/verify the microcode. That has to work.
After setting RUN and the interrupt enables, expect base-in and
control-in command to establish the DUP CSR address, buffers, line
mode/enable. These
(sorry I
didn't make that clear), but I will check through everything you have said,
just in case I have missed something.
Regards
Rob
-Original Message-
From: simh-boun...@trailing-edge.com [mailto:simh-bounces@trailing-
edge.com] On Behalf Of Timothe Litt
Sent: 19 May 2013 11:26
To: simh
, but would not expect a crash, or am I wrong?
Regards
Rob
-Original Message-
From: simh-boun...@trailing-edge.com [mailto:simh-bounces@trailing-
edge.com] On Behalf Of Robert Jarratt
Sent: 19 May 2013 15:21
To: 'Timothe Litt'; simh@trailing-edge.com
Subject: Re: [Simh] TOPS-20 Source
On 10-May-13 13:25, Robert Jarratt wrote:
-Original Message-
From: Cory Smelosky [mailto:b...@gewt.net]
Sent: 10 May 2013 07:28
To: Robert Jarratt
Cc: simh; hecnet
Subject: Re: [HECnet] TOPS20 4.1 DECnet Progress
On Wed, 8 May 2013, Robert Jarratt wrote:
Making progress:
$OPR
This is a failure loading the KMC microcode. You have to store the bits
you get, and allow them to be read back.
This communication may not represent my employer's views,
if any, on the matters discussed.
On 07-May-13 18:33, Robert Jarratt wrote:
Can anyone point me at the right place to
telnet, localhost (127.0.0.1 + ::1)
should be the default for listening sockets... though that probably
requires 1 socket/protocol.
This communication may not represent my employer's views,
if any, on the matters discussed.
On 23-Apr-13 03:06, Mark Benson wrote:
On 23 Apr 2013, at 00:55, Timothe
FWIW, errno 97 would be address family not supported. (It would be nice
if strerror() (or the thread-safe strerror_r() if available) was called
instead of just printing the decimal error number.)
You didn't say which OS you're running on your RPi. The default is debian.
You probably have
Of Timothe Litt
Sent: 19 April 2013 03:27
To: 'Johnny Eriksson'
Cc: simh@trailing-edge.com
Subject: Re: [Simh] DECnet for TOPS-10
how can I check in TOPS-20 to see if the device is visible and then
install DECnet?
You need to install DECnet first. It's pretty easy.
See
http://ia801607
how can I check in TOPS-20 to see if the device is visible
and then install DECnet?
You need to install DECnet first. It's pretty easy.
See
* The actual KS10 supports one KDP with 2 DUPs. There are several
reasons for this, like unibus load, unibus space and speed. This
places some limits in case one wants to build a network of emulators
and want to run both ANF and DECnet. The KMC itself supports 16
if I remember
.
On 14-Apr-13 08:31, Johnny Billquist wrote:
On 2013-04-14 02:18, Timothe Litt wrote:
Did I remember wrong in that I thought I had seen something from MRC
in the past where he said he had managed to get phase IV for TOPS-20
running on a KS?
MRC may well have reconstructed a V5 monitor for the KS
I noticed that the DMC-11 was added to simh.
It seems to have some support for the DMR-11, but I haven't tried to
determine how complete that is.
TOPS-10 has a driver for the DMR (but not the DMC). So it might be
worthwhile to get the DMR configured with the KS simulator. Connect it
to a
On 13-Apr-13 17:00, Rob Jarratt wrote:
I wrote support for the KMC/DUP combo a long time ago, for simh v2.9.
Works just fine, both for ANF and DECnet. Sources are (still) at
ftp://ftp.stacken.kth.se/pub/pdp10/v29upd if anyone is interested.
I do not have any system up at the moment, due to a
wrote:
-Original Message-
From: Timothe Litt [mailto:l...@ieee.org]
Sent: 13 April 2013 22:40
To: r.jarr...@computer.org
Cc: Rob Jarratt; 'Johnny Eriksson'; simh@trailing-edge.com
Subject: Re: [Simh] DECnet for TOPS-10
On 13-Apr-13 17:00, Rob Jarratt wrote:
I wrote support for the KMC/DUP
This communication may not represent my employer's views,
if any, on the matters discussed.
There is only one set of drives that isn't implemented in SIMH at present, is
the pre-MASSBUS RP drives (on the actual RP11 controller, so RP01, RP02 and
RP03).
RP stood for rotating pack, which meant
On 10-Apr-13 18:38, Jordi Guillaumes i Pons wrote:
Jordi Guillaumes i Pons
Barcelona - Catalunya - Europa
El 11/04/2013, a les 0:25, Timothe Litt l...@ieee.org va escriure:
As for simh; I suggest another escape character, which gives a restricted
command prompt, but leaves the simulation
Bob,
It might be useful to know exactly which images you tested. A number of
the 'PDP-10 DECtape images' that turned up on a quick Google search are
actually for the PDP-11 front-end of a KL1090/1090. These are in fact
16-bit tapes: the file format would be Files-11 for RSX20F tapes; I
, Timothe Litt wrote:
Bob,
It might be useful to know exactly which images you tested. A number
of the 'PDP-10 DECtape images' that turned up on a quick Google
search are actually for the PDP-11 front-end of a KL1090/1090. These
are in fact 16-bit tapes: the file format would be Files-11
I don't know if I'd call the TD8E arcane.
I'll side with Bob on this one. You would too, if you glance at the
simh code for emulating it. Even the imperfect emulation has to deal
with mechanical timing - acceleration, deceleration and timing marks.
(Imperfect = linear approximation;
Good information, but this thread is about DECtape, not 9-Track magtapes...
The format looks about right for 9-track DOS-11 magtapes; I remember
writing code to extract files from them on the -10.
It's not right (or at least, not complete) for the block-addressable
DECtapes.
I don't think
, Johnny Billquist wrote:
On 2013-03-28 19:23, Timothe Litt wrote:
Good information, but this thread is about DECtape, not 9-Track
magtapes...
Right.
The format looks about right for 9-track DOS-11 magtapes; I remember
writing code to extract files from them on the -10.
It's not right (or at least
Does anyone need any RSX Files-11 on-disk format documentation?
I have hardcopy ODS-1 and ODS-2 documentation. But it's not necessary
for the current work; I've identified the tapes by other means. I'm
sure Al will chime in if he doesn't have a copy.
No need for further research; thanks.
The logic doesn't seem to be in PIP10; PIP10 uses the DCB devtype field
to decide if it has a DECtape, and if so, which controller.
See
ftp://sunsite.unc.edu/pub/academic/computer-science/history/pdp-8/os8/os8.v3d/sources/system/dectapes/dectape7/pip10.pa
for PIP10, and table 33
Meant to include the code that uses DVTYPE and actually picks the type
in my earlier note. Sorry.
If I had to make a random guess, look at the microprogrammed operate
codes, e.g SNA CLA; CLL CML RTR;
SETUNT, 0
STL
TAD (-7607
SZA /IF IT IS 7607,
TAD (7 /ITS UNIT 0
AND (7
CLL CML RTR
RTR
DCA
The DECtape format as such, with all the headers and so on, is the
same on all tapes. A normal PDP-8 formatted tape will have 129
(12-bit) words, however, while a PDP-10 (or any other 18-bitter) would
have 128 18-bit words (if I remember right).
Pretty much right. 129 may be slightly
discussed.
On 19-Mar-13 09:25, Johnny Billquist wrote:
On 2013-03-19 14:03, Timothe Litt wrote:
The DECtape format as such, with all the headers and so on, is the
same on all tapes. A normal PDP-8 formatted tape will have 129
(12-bit) words, however, while a PDP-10 (or any other 18-bitter) would
Well, there's
http://www.filewatcher.com/b/ftp/sunsite.unc.edu/pub/academic/computer-science/history/pdp-8/os8-0.html,
which has V3d (and sources)...
This communication may not represent my employer's views,
if any, on the matters discussed.
On 18-Mar-13 12:44, Bob Supnik wrote:
I was trying
Sounds like M$ system restore. It monitors files by type (extension) so
you can undo bad drivers/patches. Turns out that many typical choices for
emulator disk images get monitored - which means XP chases its tail tracking
changes. It's a losing proposition.
Try changing the file type on
The /NOTYPEAHEAD will prevent login. This was probably done because you had
random hardware devices (e.g. the UTC clock mentioned in the comments) on
the lines, and didn't want to start a login if the device talked before your
controlling program got started. It was also done (see txa 4-7) to
...@gmail.com]
Sent: Monday, May 23, 2011 14:31
To: Timothe Litt
Cc: simh
Subject: Re: [Simh] Simh Digest, Vol 90, Issue 16
Thanks for the detailed explanations. I do have access to much of the
standard VMS documentation, though most of what I have is for version 5.x.
Knowing what the parameters on SET
Don't know about the source of your rumor, but here are a few facts:
With respect to DEC OSs:
- I started, but never finished a midnight-engineering TOPS-10 driver for
the DEUNA on the KS10. None was ever released by DEC.
- To my knowledge, there never was a TOPS-20 DEUNA driver, although the
According to the Sep 75 Intel 8080 Microcomputer Systems manual:
P 4-3: Auxiliary Carry: If the instruction caused a carry out of bit 3 and
into bit 4 of the resulting value, the auxiliary carry is set; otherwise it
is reset. This flag is affected by single precision additions,
subtractions,
Before getting TOO excited - yes, it would be nice - have a look at the June
issue of CACM (http://mags.acm.org/communications/201006/?pg=57#pg57) for a
good description of what's really involved in graphics emulation for old
machines.
It's a really, really hard problem. At least if you want a
201 - 281 of 281 matches
Mail list logo
