Re: [Simh] VMS 1.5 installable?

There is a file vax_cmode.c. From: John Forecast To: simh Sent: Tuesday, October 17, 2017 1:27 PM Subject: Re: [Simh] VMS 1.5 installable?   I don’t think you’ll be able to get early versions of VMS running on SIMH. A lot (almost all?)

Re: [Simh] New simulator - VAX-11/782

Matt Burke wrote: > I probably should have researched memory barriers a bit more. > I knew a little bit about them but wasn't sure if they were needed here. > The problem may also exist for the rest of the shared memory. For the purposes of running VMS, what really and

Re: [Simh] Problem with MT_ASTLVL on the VAX-11/780

Matt Burke wrote: > Whilst experimenting with a new device on VAX/VMS V4.5 I got a fatal > bugcheck (exception whilst above ASTDEL). The problem turned out the be > a reserved operand fault and I traced it back to the following code > (shown here from the VMS 3.0 source

Re: [Simh] Adding storage to vax running 4.3BSD

Johnny Billquist wrote: > Well, MSCP was a good solution, and it's rather funny to now watch SATA > and SAS, which is almost a carbon copy of MSCP and DSI, but 20 years later. Unless I am mistaken, SCSI (at least in the form of SASI) preceded MSCP chronologically and perhaps inspired

Re: [Simh] DECserver (terminal server) emulation?

>> The MOP server that exists for Unix systems ... only supports booting. > What else do you need?  MOP doesn't do much more than that Academically speaking, MOP also provides remote control, counters, memory dump, loopback testing.Whether any of this is "needed" is a matter of taste of course

Re: [Simh] VAX 8200

> Robert Armstrong wrote: > I have a running 8350 [...] I've always wondered if the limitation to two > CPUs was purely for testing and support reasons - > it doesn't seem that there's any reason why you could not plug in three or > even more CPU cards. By the way of the

Re: [Simh] HSC vs UDA/QDA

And then of course, if someone wants a true emulation, then A and B paths should be running on separate Ethernet rails. ;-) From: Paul Koning To: Johnny Billquist Cc: simh@trailing-edge.com Sent: Wednesday, March 8, 2017 5:26 PM Subject: Re:

Re: [Simh] VAX vectors

Bob Supnik bob at supnik.org: Bolting on vectors to the existing 3900 would not be all that hard, because the core floating point routines are available, but it would be another never existed in the real world hybrid. That's already been done once, when the 3900's memory capacity was

Re: [Simh] Missing (VAX) documents

From: Bob Supnik b...@supnik.org a lot of that  failed to survive the DEC to Compaq and Compaq to HP transitions, as well as the various archival media transitions. Do you know per chance if HP ever managed to recover VAXELN sources? ___ Simh

Re: [Simh] Regarding Cutler THE father of VMS myth

From: Henk Gooijen henk.gooi...@hotmail.com up and down is not the best translation for P/V operation. P stands for the Dutch word passeer which roughly translates to pass. V stands for the Dutch word verhoog and that should be translated to increment. The history of early efforts in

Re: [Simh] Simulating the PDP-15/76 Unichannel

From: E. Groenenberg qua...@xs4all.nl Any current reasonably seasoned Unix or derivative has shmat() shmdt() (or equivalent) calls for attaching detaching a segment of a given size. Also MS$ has this [...] so a common API for SIMH would be fairly easy. [ ...] With this feature, it

Re: [Simh] Simulating the PDP-15/76 Unichannel

Unless I misread Mark's message about the RQDX3 analogy, he is suggesting to put PDP-15 and PDP-11 in the same SIMH thread and in the same address space. When PDP-11 side becomes non-idle, it can signal an event and become eligible for execution, in a way similar to RQDX3. The options for

Re: [Simh] Regarding Cutler THE father of VMS myth

Johnny Billquist b...@softjar.se wrote: One thing Cutler did, which you do not find in the predecessors are ACPs. If so, he may have a claim to inventing (a hint at) a microkernel concept. ;-) Ironically, while ACPs made a lot of sense in a PDP-11 world due to the constraints in address

Re: [Simh] Regarding Cutler THE father of VMS myth

From: Andreas Davour a...@update.uu.se what is the Showstopper? A belletristic account of Windows NT development history. Showstopper is the dramatic, inside story of the creation of Windows NT, told by Wall Street Journal reporter G. Pascal Zachary. Driven by the legendary Bruce [sic!]

Re: [Simh] Regarding Cutler THE father of VMS myth

From: Bill Cunningham bill...@suddenlink.net I've always heard Dave Cutler given full credit for RSX. I know he designed NTFS. If you imply NT file system, then the history of NTFS development is described at some length in the Showstopper. According to this description NTFS was one of the

Re: [Simh] Regarding Cutler THE father of VMS myth

From: Clem Cole cl...@ccc.com While I think it bug Dave and others that people did not like his favorite system ... The New Hacker's Dictionary, MIT Press, 3rd edition: Many Unix fans generously concede that VMS would probably be the hacker's favorite commercial OS if Unix didn't exist;

Re: [Simh] Getting rsxs to run on the pdp11 emulator

There is a couple of publicly accessible system running RSX-11M+. *** The first one I know of is located in Novosibirsk and runs RSX-11M-PLUS V4.6 BL87. Some days it is executed by SimH, other days by Ersatz-11. To access, telnet rsx.pdp-11.org.ru Then log in as HEL GUEST/ (note

Re: [Simh] Is Alpha AXP in SIMH's future?

. From my view it would be fantastic to have SIMH support an Alpha emulator because SIMH doesn't require particular hosts. On Tue, 3 Mar 2015 12:44:03 -0800 Sergey Oboguev obog...@yahoo.com wrote: The downside of running a 32-bit version of virtually any AXP simulator is that it is bound to be 2

Re: [Simh] Is Alpha AXP in SIMH's future?

The downside of running a 32-bit version of virtually any AXP simulator is that it is bound to be 2-3 times slower than 64-bit version, due to (a) simulation of AXP 64-bit operations on top of 32-bit host operations, (b) indirect access to guest memory when it is sized above 2 GB or so

Re: [Simh] Is Alpha AXP in SIMH's future?

...@infocomm.com To: Sergey Oboguev obog...@yahoo.com; li...@openmailbox.org li...@openmailbox.org; Simh@trailing-edge.com Simh@trailing-edge.com Cc: Sent: Tuesday, March 3, 2015 12:55 PM Subject: RE: [Simh] Is Alpha AXP in SIMH's future? On Tuesday, March 3, 2015 at 12:44 PM, Serge Oboguev wrote

[Simh] Regarding Cutler THE father of VMS myth

- Original Message - From: Christian Gauger-Cosgrove captainkirk...@gmail.com To: Bill Cunningham bill...@suddenlink.net Cc: SIMH Simh@trailing-edge.com Sent: Tuesday, March 3, 2015 12:12 PM Subject: Re: [Simh] Getting rsxs to run on the pdp11 emulator Dave Cutler is the father of

Re: [Simh] Platform for VAX MP Experimentation (amongst other uses)

Most extensive VAX MP stress tests I did were on 8-VCPU configuration (i7), however I also did some testing on 24-VCPU and 32-VCPU configurations. No problems have been spotted. If you want to run VAX MP on a 32-bit host system, you might wish to rebuild VAX MP from source, as 32-bit binaries

Re: [Simh] Reduce CPU usage

Could it perhaps be a canonical case of Linux build with low CONFIG_HZ such as 100 or around? From: Hittner, David T (IS) david.hitt...@ngc.com To: Mark Pizzolato - Info Comm m...@infocomm.com; Priya Chincholikar priyach...@gmail.com; simh@trailing-edge.com

Re: [Simh] EXT : Questions regarding future simulator development

There is an unreleased VAX simulator variant in the wild with 32 processor support. It had been released about 8 months ago. ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh

Re: [Simh] Why 36-bit computing?

My very first computer as a kid was a 37-bit computer we had at school, which I reckon must be considered superior to 36-bit computers. From: Michael Mondy michael.mo...@coffeebird.net To: simh@trailing-edge.com Sent: Tue, March 19, 2013 7:39:07 AM Subject:

Re: [Simh] Virtual VAXen

://dx.doi.org/10.1109/MSP.2012.87 http://www.cse.psu.edu/~tjaeger/cse543-f12/docs/SP_SPSI-2012-03-0042 R1_Zurko.pdf From: Sergey Oboguev obog...@yahoo.com To: simh@trailing-edge.com Sent: Mon, July 9, 2012 6:23:41 AM Subject: Re: [Simh] Virtual VAXen Ah yes, the VVAX

Re: [Simh] Connecting to Ethernet

Oboguev obog...@yahoo.com wrote: From: Sergey Oboguev obog...@yahoo.com Subject: Re: [Simh] Connecting to Ethernet To: david.d.mil...@att.net, simh@trailing-edge.com Date: Monday, September 3, 2012, 5:34 PM Did you remember to configure the interface in TCP/IP services for OpenVMS? Assuming

Re: [Simh] Basic questions

In particular I get the following error: david@Thinkpad:~$ sudo brctl addbr br0 david@Thinkpad:~$ sudo ifconfig tap0 up tap0: ERROR while getting interface flags: No such device Perhaps because /usr/sbin/tunctl -t $TAPDEV -u $USERID is missing. You may find the following script

Re: [Simh] Virtual VAXen

Ah yes, the VVAX option... another attempted graft on the VAX architecture tree. Unlike vectors, it never got as far as a real implementation. According to VVAX / VAX Security Kernel developers, while it was never released externally as a product, there was internal proof-of-concept

Re: [Simh] clang (was Re: XCode and LTO)

From: Michael Bloom mabl...@dslextreme.com nanosleep() would give you the exact timing needed. I'm very much against polling the time as a solution because it could use up a lot of CPU cycles that other processes would love to have. spinning when there are ways that are more accurate

Re: [Simh] clang (was Re: XCode and LTO)

Splitting into separate files won't override optimization in LTO case since (tautologically) it is link-time. - Original Message From: Nelson H. F. Beebe be...@math.utah.edu To: Sergey Oboguev obog...@yahoo.com; simh@trailing-edge.com simh@trailing-edge.com Cc: be...@math.utah.edu

Re: [Simh] Alpha simulator performance

NT is not VMS or a reimplementation of it. Let's look at some basics in internals. I'd rather just quote someone here, to save time typing: === quote begin === The scheduler. (process scheduler in VMS, thread scheduler in NT) 32 scheduling priorities, divided into the real-time (16-31) and

Re: [Simh] Alpha simulator performance

I would say Unix (and its derivatives) and VMS are Operating Systems. Windows is an Application. Takes VMware to run it. Takes SIMH to run VMS. ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh

[Simh] RE : Segmentation fault when running the MIcrovax emulator

If you compile it, rather than using pre-built binary, can you compile in debug mode, run under gdb and see the stack at fault point, and also the fault location? Similarly, can you verify if SHOW XQ ETH works or also faults? From: brian br...@meadows.pair.com

Re: [Simh] Segmentation fault when running the MIcrovax emulator

Build options can be checked with show version command. It should display something like sim sh vers VAX_MP simulator V3.8-1 [64b data, 64b addresses, Ethernet support] From: Boucher, François boucher.franc...@uqam.ca To: simh@trailing-edge.com Sent: Sat,

Re: [Simh] Segmentation fault when running the MIcrovax emulator

01:31 PM, Sergey Oboguev wrote: Build options can be checked with show version command. It should display something like sim sh vers VAX_MP simulator V3.8-1 [64b data, 64b addresses, Ethernet support] -- *From:* Boucher

Re: [Simh] Network interfaces under Windows

If you want to communicate between Windows host machine and SIMH, the easiest setup is Windows Loopback Adaptor (yes, with o). To avoid confusion by name, it is not an adapter that is associated with address 127.0.0.1, but a virtual Ethernet card driver that creates a subnet connected on one

[Simh] VAX VMS73 listings - source

I put together a small utility that massages OpenVMS VAX 7.3 listings back to a source-like form, basically stripping off compiler-produced crud, thus making files easier to read and restoring original file names (found in listings) to the best of its ability. Those who use these listings may