On Tue, Dec 07, 2010 at 09:21:43AM -0500, Ken Cornetet wrote:
> Keep in mind that the printer port on regular old PCs can be used for a few
> lines of general input and output. I used to do this on a regular basis back
> in the DOS days. Looks easy under linux too:
> http://www.faqs.org/docs/Lin
Hi Bob
I have been in contact with a swedish company that used a PDP-15 in
development in the seventies. The machine itself is long
Hmm. This wasn't meant for the list. Oh well.
On Tue, Oct 11, 2011 at 03:17:10PM +0200, Pontus Pihlgren wrote:
> in sthlm that has a working PDP-8/e with tape drives. I'm not sure the
>
> system is compatible with PDP-15 tapes though.
Me too, I also hope to get the GPIO pins hooked up to some
blinkenlights.
/P
On Wed, Mar 07, 2012 at 07:12:55AM -, Rob Jarratt wrote:
> That is my plan. As soon as my Raspberry Pi arrives I want to build SIMH for
> it. Not sure what problems I might encounter. My Raspberry Pi is on order,
>
st concentrate on that. Do share the code for the
> GPIO pins if you do this.
>
> Regards
>
> Rob
>
> > -----Original Message-
> > From: Pontus Pihlgren [mailto:pon...@update.uu.se]
> > Sent: 07 March 2012 07:31
> > To: r.jarr...@computer.org
> &g
Hi
Is it possible for SIMH to use a SCSI disk directly under linux? such as
/dev/sg1 ?
What I want to accomplish is to install RT-11 under SIMH and then
transfer that installation to a physical PDP-11/73 with a
SCSI-controller.
Does anyone have any experience doing this?
/Pontus
On Mon, Sep 29, 2014 at 02:33:41AM -0700, Mark Pizzolato - Info Comm wrote:
> On Monday, September 29, 2014 at 2:28 AM, Pontus Pihlgren wrote:
> > Is it possible for SIMH to use a SCSI disk directly under linux? such as
> > /dev/sg1 ?
> >
> > What I want to accomplis
On Mon, Sep 29, 2014 at 12:34:37PM +0200, Johnny Billquist wrote:
> On 2014-09-29 11:27, Pontus Pihlgren wrote:
> >Hi
> >
> >Is it possible for SIMH to use a SCSI disk directly under linux? such as
> >/dev/sg1 ?
> >
> >What I want to accomplish is to instal
Hi
I have a physical front panel from a PDP-11/70 (sadly the machine is
long gone).
But I've begun building an interface to control it from my PC. Much like
Henk[1], Jörg[2] and John[3] has done before.
Henk says he has a patched version of SIMH, before I contact him. Is
there any such code
Hi Ed
On Tue, Dec 16, 2014 at 02:40:50PM +0100, E. Groenenberg wrote:
>
> Let me know if you want these modified files (based on github simh 4.0.0
> from around 1 Nov 2014)
Please do, it would be very helpful, then I don't have to start from scratch.
I looked at the youtube clip: https://www.yo
On Fri, Feb 06, 2015 at 09:35:35AM +0100, Andreas Davour wrote:
> On Thu, 5 Feb 2015, dave porter wrote:
>
> >Octal makes sense for the PDP11 since the instruction
> >format is divided into 3-bit fields (operand modes,
> >register specifiers, etc).
> >
> >Hex makes sense for the VAX since the inst
If I understand it correctly, you have four combinations:
11 -- illegal
10 -- data
01 -- instruction
00 -- illegal
And memory locations market illegal or data wont be executed?
This reminds me of the more modern terms "DEP" - Data Execution
Prevention, "NX" - No-eXecute, "XD" - eXecute Disable,
On Mon, Apr 27, 2015 at 10:32:11PM +0200, Johnny Billquist wrote:
>
> Anyway, I thought that Stackens machines had met a sadder fate, so I
> guess it is good news if Peter have them.
I think most survived in one way or another. Peter at least had this in
storage at some point:
http://www.stupi.s
Hi
As pointed out there is some online and Update has a stack of
tape that we coul probably work to image. Mattis of
www.datormuseum.se is working on a TU5X to usb interface with
intention of archiving his 8 and 12 tapes.
It would be great if Lyles tapes could be read.
Also, Andreas Sandberg
On Sat, Jun 06, 2015 at 04:47:43AM -0700, Mark Pizzolato - Info Comm wrote:
>
> If the original author of the code is willing to change the
> terms, no harm is done.
I'm fairly confident Andreas (the sole author) wont mind. I'll
talk to him.
/P
___
S
On Sat, Jun 06, 2015 at 07:27:51PM +0200, dott.Piergiorgio d' Errico wrote:
> Il 06/06/2015 18:10, Tom Morris ha scritto:
> >On Sat, Jun 6, 2015 at 6:41 AM, Bob Supnik wrote:
> >>Thanks for the simulator pointer, but no, I can't use it.
> >>
> >>SimH is licensed under an MIT/X11/do-anything-you-da
On Sat, Jun 06, 2015 at 08:08:29PM -0400, Clem Cole wrote:
> Without getting into the good/bad politics of the different
> license its pretty simple.
I'd also like to avoid a good/bad discussion. I too use both.
> The GPL is a "virus" which says that if you use the
> technology, a ny "derivit
To clarify, this applies to GPLv2. I don't know a lot about GPLv3
/P
On Sun, Jun 07, 2015 at 10:00:47AM +0200, Pontus Pihlgren wrote:
> On Sat, Jun 06, 2015 at 08:08:29PM -0400, Clem Cole wrote:
>
> > Without getting into the good/bad politics of the different
> > li
On Sun, Jun 07, 2015 at 08:45:14PM -0400, Clem Cole wrote:
> I fear you might be missunderstanding/confusing the "usage" rights and the
> "ownership" rights.
Perhaps, yes.
> On Sun, Jun 7, 2015 at 4:00 AM, Pontus Pihlgren wrote:
>
> > If A gives B a
On Mon, Jun 08, 2015 at 01:24:39PM +0200, Johnny Billquist wrote:
>
> Which is essentially anyone. Since, if you do release it, you cannot
> restrict who can use it.
The point I'm trying to make is that B has no obligation to anyone but
C. If C starts to make the software available no-one can de
On Mon, Jun 08, 2015 at 12:57:21PM +0100, David Brownlee wrote:
>
> GPLv2 states:
>
> 2b) You must cause any work that you distribute or publish, that in
> whole or in part contains or is derived from the Program or any
> part thereof, to be licensed as a whole at no charge to all third
>
On Mon, Jun 08, 2015 at 03:18:50PM +0200, Johnny Billquist wrote:
> On 2015-06-08 13:36, Pontus Pihlgren wrote:
> >On Mon, Jun 08, 2015 at 01:24:39PM +0200, Johnny Billquist wrote:
> >>
> >>Which is essentially anyone. Since, if you do release it, you cannot
> >>
On Mon, Jun 08, 2015 at 03:24:32PM +0200, Andreas Davour wrote:
>
> How about we pend this discussion until we know if the code in
> question will be relicenced to Bob's satisfaction?
If the list owner tells me to take it off list I will.
/P
___
Simh m
On Mon, Jun 08, 2015 at 03:31:42PM +0200, Pontus Pihlgren wrote:
>
> A little contrived, I know, but I still maintain that C has no claim
> towards A.
I stand corrected:
http://www.gnu.org/licenses/gpl-faq.html#WhatDoesWrittenOfferValid
Sorry guys :) Educational for me at l
On Mon, Jun 08, 2015 at 03:21:51PM +0200, Johnny Billquist wrote:
>
> Uh... You cannot choose who to distribute it to. That is the whole
> point of GPL, and is what puts it apart from just any company
> copyright control.
Certainly I can :) at least in the first step.
> If you make it available
On Mon, Jun 08, 2015 at 11:52:48AM -0400, Clem Cole wrote:
> I appologies to the list for turning this into a religious war, I did not
> intend that .
Oh this was hardly a war :) Hardly even a squabble. And there is really nothing
religious about my views. I think we stand closer than you might
On Mon, Jun 08, 2015 at 08:02:09AM -0700, Mark Pizzolato - Info Comm wrote:
>
> That said, the code involved isn't in any way derived from a simh simulator
> so
> there is nothing just waiting to be 'folded in' to the simh project. Some
> pieces of might be useful for someone implementing a ne
On Wed, Aug 12, 2015 at 02:42:53PM -0700, Mark Pizzolato - Info Comm wrote:
>
> I'm working my way through each of these new pieces of boot code to
> make sure that they actually behave like the original hardware did.
>
I'm amazed by the effort you put in and level of accuracy that you are
goi
On Thu, Dec 10, 2015 at 02:56:56PM +, Johnny Eriksson wrote:
> ... I had hopes to be able to announce something today, but the thing
> is not yet fully functional. Watch this space.
Exciting! I hope it runs on KS10 :D
/P
___
Simh mailing list
Simh@
On Tue, Feb 09, 2016 at 09:41:03PM -0800, Zachary Kline wrote:
>
> Any thoughts? Apologies for the disjointed post, it’s rather late. ;)
To some it is very important. I have a gadget that replaces the floppy
drive for my Commodore 64. It has an audio jack that plays the sound of
a real floppy d
On Wed, Feb 10, 2016 at 11:26:44PM +0100, Johnny Billquist wrote:
> Google for walking disks... It's a known phenomena, or at least it used to
> be...
>
> By the way - just to make another silly comment... The RK07 is a small disk
> (it's basically just an overgrown RL02). Come back when you've pl
On Tue, Mar 15, 2016 at 06:31:35PM +0100, Mattis Lind wrote:
>
> The documentation was the only thing that remained from the PDP-15
> installation at Standard Radio & Telefon (part of the ITT company) that was
> used for development of the ATC (Automatic Train Control) system.
An I have DECtapes
On Fri, Mar 25, 2016 at 08:57:58AM -0700, Mark Pizzolato wrote:
>
> That said, the TC11/TU56 has been added to the VAX Unibus simulators
> and confirmed that it works using the Andy Goldstein supplied driver.
>
That is pretty neat! Knowing that it works makes me want to scrounge up
the hardware
On Fri, Aug 12, 2016 at 10:46:40AM +0200, Jörg Hoppe wrote:
> It was easy! I already documented the acryl and the PCBs:
> 3 High-res images are at ftp://jhoppe.ddns.net/tmp/
That is great! It's just what I wanted :) Thank you.
> >Nice! I have used your protocol for my 11/70 interface. It is not q
On Fri, Sep 09, 2016 at 09:19:15AM -0700, Mark Pizzolato wrote:
>
> A few years back, I added Android build support to the simh
> makefile in the github master branch. I haven't tried building for
> Android since shortly after that time. I'd appreciate any feedback
> from anyone who tries now.
up 4.2BSD on a vax780 but disk
> access was painfully slow. I was running as root so I have no idea how well
> it would run on a non-rooted phone. So it's certainly possible but there
> are bugs to be worked out.
>
> -Henry
>
> On Sep 10, 2016 6:33 AM, "Pontus Pihlgren&
On Mon, Dec 05, 2016 at 12:05:39PM -0500, Paul Koning wrote:
>
> > On Dec 4, 2016, at 10:12 PM, Bob Supnik wrote:
> >
> > Josh Dersch at the Living Computer Museum found a snippet of real DECtape
> > code (that runs on a real 11/40) which fails on the simulator.
> > ...
> > This leads me to thi
On Tue, Dec 06, 2016 at 01:14:47PM -0500, Bob Supnik wrote:
> >Are you suggesting that simulators should fix "bugs" for someone using a
> >simulator for comparison when restoring real hardware it could be very
> >confusing.
I wonder if I made that sentence more confusing that necessary. I meant
t
On Tue, Dec 06, 2016 at 08:29:44PM -0500, Bob Supnik wrote:
> Simulators should never fix "bugs". The question at issue is how deeply to
> mimic them, in order to assure maximum compatibility with software.
My point exactly :) (Note that my question was directed at Paul).
>
> Over the years, I'v
On Mon, Feb 20, 2017 at 09:34:37PM +0100, Johnny Billquist wrote:
>
> Yes, it would. There are others who can show you around at other times.
I'm more than happy to give tours of Updates computers. Just give me a
heads up a few days a priori.
/P
___
Anders generously donated this machine to me. I think it currently has
three CPUs.
It sounds like there are a few running 8350 machines out there. But if
the simh works requires another one I could bump it up the TODO-list.
/P
On Thu, Mar 16, 2017 at 09:57:12PM +0100, Anders Magnusson wrote:
>
Hi
I'd be interrested in this to.
It is quite a coincidence that this is brought up just now. I hade the
idea this friday that I should try to emulate the vt220, seems I don't
have to now.
Thank you,
Pontus.
On Sat, Apr 08, 2017 at 11:52:17PM +, Sancho Villa, Roberto wrote:
> Hi Folks
>
On Tue, Apr 11, 2017 at 05:40:55AM -0400, Jim Carpenter wrote:
>
> Meh. I like the DECserver interface and I only need LAT. And as you said,
> the Linux LAT isn't perfect.
>
Precisely, people complain about LAT in linux or the poor emulation of
glass terminals. Getting a DECserver and VT2x0 emu
On Tue, Apr 11, 2017 at 11:08:19AM -0400, Paul Koning wrote:
>
> SB-11 size) and the connectors (from some 8 pin connector I don't
Does anyone have an SB11? I believe the box was called BA-11VA. I know
of two collectors that has one so they are not exceedingly rare.
What was their target marke
I would be a happy reader! Making simh even more approachable cannot be
a bad thing.
/P
On Mon, May 08, 2017 at 09:04:36PM -0400, Ray Jewhurst wrote:
> With all of the questions I have asked lately, I have had an idea. First a
> little bit of background. I am 45 years old and have really only h
On Tue, Dec 12, 2017 at 01:01:11AM +0100, Johnny Billquist wrote:
>
> Me thinking right now if this wouldn't be a nice project for
> Magica.Update.UU.SE (PDP-11/70 running RSX). The RA73 disks are really the
> slow part of that system, compared to a system I have at home with SCSI
> disks. We cert
Looks very promising! You mention it could become a QBUS product in the
future. Would you have to change buss drivers for that?
Could it also become an Omnibus tool?
Regards,
Pontus.
On Mon, Nov 12, 2018 at 02:32:09PM +0100, Jörg Hoppe wrote:
> Guys,
>
> I'm about to finish another project:
>
Hi
I have a stack of PDP-15 tapes and my friend has a stack of PDP-9 tapes.
My friend also has a PDP-8/a with TD8E and working DECtape drive. We
would like to use OS/8 to make images of these tapes.
So first I wanted to do it with SIMH in order to get the details right
when I start reading act
Hi
It has been discussed before, but the PDP-12 had one or two ports of
Spacewar as well. While there is no support for the PDP-12 in simh, I
think similar A/D equipment was available for the PDP-8 to attach
controllers.
Perhaps something to look into?
Regards,
Pontus.
On Mon, Jan 14, 2019 a
Hi
I'm having trouble understanding your question. Are
you comparing CPU-time of a real VAX(which model?) to
emulated CPU-time on an Itanium machine(which one?).
Emulation will have an associated overhead. If you
are compareing a fast VAX to an emulation on a slow
Itanium... well, Itanium is
On Tue, Aug 13, 2019 at 06:29:40AM +, Lars Brinkhoff wrote:
> Warren Young wrote:
> > Find some bit of PDP-5 and/or PDP-12 software that you want to make
> > run, then modify the current simulator until it does run.
>
> What interesting PDP-5 and/or PDP-12 software is there?
For the PDP-12 th
On Wed, Aug 21, 2019 at 06:39:06AM -0600, Warren Young wrote:
> What I was really hoping for in asking the question is some old science lab
> experiments based on the A/D converters that we could replicate in
> kitchen-table science fashion.
Something like this?
http://www.pdp8online.com/images/l
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