[Simh] VAX physical address space
On Sun, Apr 21, 2019, 21:03 Johnny Billquist wrote: > > By the way. was there any Qbus system that used NVAX? Various VAX 4000 systems did. Patrick Finnegan ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] Which PDP-11 to choose
On Mon, Jul 1, 2019 at 7:32 AM Clem cole wrote: > 19” form factor for the disks drive fir the space in the 19” relay rack. > You’re right the platters themselves were smaller. The disks were referred > too by the mechanical FF. 19, 8, 5.25 etc. > > But, 8" hard drives have 8" platters, and 5.25" hard drives have 5.25" platters. The casing on a the 5.25" drive in front of me is almost 6" wide. Pat ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] EXT : MAME and simh
On Wed, Jul 1, 2020, 12:37 Dan Gahlinger wrote: > or SecureCRT which has a whole slew of VT terminal support, control and > options. > free for 30 days but definitely worth the price. > > it's what I use for my vax emulation with simh > > MAME is multi ARCADE machine emulator, and while it may support or use the > roms for VT terminals, it's only meant for use with the game machines that > need it. > don't ask me which ones, I have no idea. > MAME emulates a lot more than you think, including various workstations and terminals. Just like simh emulates more than just DEC hardware. http://www.progettoemma.net/mess/sysset.php Also, Peter said he's using Linux. Idk why everyone is trying to suggest Windows terminal emulators to him. There's a lot better VT terminal emulators than Putty and SecureCRT on Linux. Pat ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] SIMH tape images to real tapes
Try: http://www.brouhaha.com/~eric/software/tapeutils/ Pat On Thu, May 15, 2014 at 10:10 PM, Cory Smelosky wrote: > On Thu, 15 May 2014, Patrick Finnegan wrote: > > It would be a lot easier to use NetBSD to do this. I did this by net >> booting it on the vax, which is easier than going through the full install >> process. >> > > Probably. Good point. > > > >> Tepecopy should be the name of the utility you want. >> >> > Is it included with the distro? > > > Pat >> On May 15, 2014 4:39 PM, "Cory Smelosky" wrote: >> >> > -- > Cory Smelosky > http://gewt.net Personal stuff > http://gimme-sympathy.org Projects > ___ > Simh mailing list > Simh@trailing-edge.com > http://mailman.trailing-edge.com/mailman/listinfo/simh > > ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] SIMH tape images to real tapes
It should understand simh .tap files. It's been a while since I've used it, you'll probably want to read over any documentation (and/or the source code, it's not too big) that comes with it. Pat On Fri, May 16, 2014 at 12:16 AM, Cory Smelosky wrote: > On Fri, 16 May 2014, Patrick Finnegan wrote: > > Try: >> >> http://www.brouhaha.com/~eric/software/tapeutils/ >> >> > Thanks. What tape image formats does it understand? > > Pat >> >> >> > -- > Cory Smelosky > http://gewt.net Personal stuff > http://gimme-sympathy.org Projects > ___ > Simh mailing list > Simh@trailing-edge.com > http://mailman.trailing-edge.com/mailman/listinfo/simh > > ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] Off topic: ULTRIX question
On Sun, Jul 12, 2015 at 7:08 PM, wrote: > On Sun, 12 Jul 2015 17:20:19 -0500 > Gary Lee Phillips wrote: > > > There is still Linux for Alpha, Johnny, though it's beginning to age > > from lack of supporters. Debian for Alpha exists up through "Sid" I > > think. CentOS also had an Alpha version last time I looked. I have run > > the Debian versions and they pretty much work as they should. I've > > never seen Linux for VAX at all, that's true. > > More to like about the VAX... > > Actually, Linux on VAX does exist. http://vax-linux.org/. Though, it seems to be mostly abandoned. I've never tried running it on a VAX, but maybe I should sometime. Pat ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] terminal multiplexers
DEC's DECserver, Xyplex Maxserver, Annex terminal servers, and Xylogics (for the ones I have touched and remember) all converted telnet into real RS/EIA-232 lines. (telnet client -> host serial, or serial terminal -> host telnet server) These days the Cyclades ones aren't too bad. Newer ones turn ssh into serial lines, and are useful for aggregating serial consoles. On Thu, Nov 12, 2015 at 12:03 AM, Jacob Goense wrote: > Simh simulates a telnet speaking terminal multiplexer. > What were the primordial real systems actually doing this? > > ___ > Simh mailing list > Simh@trailing-edge.com > http://mailman.trailing-edge.com/mailman/listinfo/simh ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
[Simh] Fwd: Simh Digest, Vol 145, Issue 52
Let's try again... On Feb 16, 2016 8:22 PM, "Mark Pizzolato" wrote: > > Well, of course an RSX-based smartphone isn't going to happen, BUT > with an Android based phone you could run a simh PDP11 simulator > running RSX and likely have it talk to the internet via your (Johnny's) > TCP/IP package. I haven’t tried to build using the Android cross > development tools for a couple of years, but the github makefile > worked fine the last time I tried. :-) > Not exactly the same, but I did something like this a few years ago with simh VAX on my Android phone... http://worldofvax.blogspot.com/2010/08/compiling-simh-emulators-for-android.html?m=1 http://worldofvax.blogspot.com/2010/08/htc-evo-and-vt125.html?m=1 More recently, I've done the same with my Sony Smartwatch 3. I haven't repeated it since the wifi support was enabled, but it's something I need to get back to when I find free time again. But still, it's a wearable VAX... Pat ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] VAX/VMS
On Wed, Feb 17, 2016 at 9:20 AM, Clem Cole wrote: > For whatever it is worth, this was a discussion about compatibility. My > point was and is, Intel owns the trademark; and defines / continues to > extend the INTEL*64 and IA-32 ISA's. The current definition can be found > at: > > http://www.intel.com/content/www/us/en/processors/architectures-software-developer-manuals.html > > Intel has invested heavily in the ability to moved customer codes from > 4004 to today's Phi ISA and IMO, done an excellent job of it. Certainly > from the 386 family and later. As Johnny and I both said, you can run > MS-DOS and old DOS programs on my current system from an Edison (IoT) > module that costs a few dollars all the way up to a world largest > supercomputer (the Milky Way 2 system in China) - which is a bit of a > frightening thought to me. > > Can you run it on a Xeon Phi (eg, a 5110P coprocessor card)? > So coming back to compatibility, when the first processors to support > INTEL*64 were created, Intel's engineering team had a choice. What is > interesting is that Intel's engineers chose to ensure that current set of > applications codes continued to run. They did not have too. We might > have had two completely different instruction sets if they had chosen > otherwise. I personally think, we as consumers won because of that. > > However, AMD developed and implemented the first 64-bit extensions to Intel's 32-bit "x86" (Intel 32 if you prefer) instruction set. Also, Intel (given a choice) had two incompatible instruction sets. The common 32-bit x86 ISA, and the Itanium 64-bit ISA. I have several machines with Intel's first 64-bit attempt at an instruction set in it (well, actually the Itanium 2, but you get the idea). Xeon Phi (as currently available) is also only *mostly* compatible with x86 code. The difficulty I've had to get a standalone Linux kernel to compile and run (or even build a working generic version of gcc for it) on the 31S1s that I've got at home are pretty good proof that it's not quite backwards compatible... as noted in Intel's own documentation: "Knights Corner is not completely binary compatible with any previous Intel processor. " ( https://software.intel.com/en-us/blogs/2012/06/05/knights-corner-micro-architecture-support/ ) Pat ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] error
If bunzip2 reported an error, you need a new copy of the source file. You've overwritten the ISO image. If bzip2 complains, you're not going to recover the entire source file. Find a new copy of the OpenVMS ISO image (download from HPE's hobbyist site or whatever), and start over. On Wed, Sep 14, 2016 at 12:14 PM, Bill Cunningham wrote: >I am receiving this error code > ?42 no such file > > set rq0 cdrom > at rq0 openvms73.iso > > Recently the file openvms73.iso which was bzip2'd was being uncompressed. > bunzip2 said there was a problem. And use bzip2recover. Which I did. Of > course there were many recovery files and as they were being created > recover said there was something wrong. > >Then I used bunzip2 rec* > openvms73.iso and all the recovery files > seemed to merge into openvms73.iso. Could there be a problem there? simh > vax simulator isn't recognizing a file for some reason. Can I correct this? > > Bill > > ___ > Simh mailing list > Simh@trailing-edge.com > http://mailman.trailing-edge.com/mailman/listinfo/simh ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] simh on OpenVMS
For #2, could you try comparing performance on VMS vs on Linux running as the host OS on the same Itanium system? Narrowing it down to one variable at a time makes it easier to test differences. You should be able to use a live CD on the Itanium system to test without reinstalling the system. Pat On Thu, Sep 15, 2016 at 11:50 AM, gérard Calliet < gerard.call...@pia-sofer.fr> wrote: > Hello, > > simh on OpenVMS again. > > 1) with the help of an Lan expert of VSI, I could use pcap on VMS on an > Itanium i4... some time and it is again impossible. I will meet the VSI > expert on OpenVMS bootcamp in Boston next week, anf I hope we will address > this issue again. Any idea welcomed, of course. (It seems PCAP on VMS > does'nt like larger frame with i4, because it is the only diference I can > see between i2 and i4 Itanium servers, and it works on i2). > > 2) there is a very bad performance issue: same batch on a windows10 / i7 > platform six times faster than on an i2 / OpenVMS platform. I don't think > it's a normal issue of windows or x86 being better than OpenVMS / italium > i2. Something goes wrong somewhere. I gave a huge working set to the host > process, and it is not doing paging, I tried Decram to avoid physical I/O, > asynchronous I/O is enabled for simh (and the simh configuration is the > same on windows and on OpenVMS). > > Any help will be welcomed: ideas, tools for tracking,... > > Best regards, > > Gérard Calliet > > > > --- > L'absence de virus dans ce courrier électronique a été vérifiée par le > logiciel antivirus Avast. > https://www.avast.com/antivirus > > ___ > Simh mailing list > Simh@trailing-edge.com > http://mailman.trailing-edge.com/mailman/listinfo/simh ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] VT240, VT340 and DS200/300 HW specs info
On Mon, Apr 10, 2017 at 6:25 PM, Richard wrote: > In article <01d2b0ef$c2cd4330$4867c990$@verizon.net>, > "Tim Stark" writes: > >> DS200 uses 68000 processor with AM7990 (LANCE) and 4 2681 DUARTs. >> >> DS300 uses 68020 processor with TC23SC241AP and 8 2681 DUARTs. >> >> DS500 uses KDJ11-SD processor (11/53) with CXA16/CXB16 devices. > > What are these? DECserver, aka a terminal/console server. Older ones are LAT only, newer ones do Telnet as well. Pat ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] FW: VAX780 ini file ...
On Wednesday 13 January 2010, John Welsh wrote: > Thanks Jason, > > The ini file that I have shown below was correct. > I was attempting to boot a VMS7.3 vdisk ! ( VAX780 last > supported VMS Version was V6.2). I built a fresh V6.2 vdisk using > Charon VAX 3900 Demo and this booted fine with SIMH VAX780. Yes it > needs VMB.exe from the SIMH distribution in the same directory as > the SIMH VAX780.exe. I've booted 7.2 and 7.3 on a real 11/780, so it should be possible on the vax780 sim as well. Note that "supported" means what Digital would support you running, not what hardware was necessarily supported by VMS. Booting my 11/780 off a SCSI-attached CD-ROM drive with the Hobbyist V7.2 CD in it was probably one of the more perverse feeling things I've done with a classic machine... and I was amazed that it worked. Pat -- Purdue University Research Computing --- http://www.rcac.purdue.edu/ The Computer Refuge --- http://computer-refuge.org ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] Questions on SIMH VAX
On Wednesday 09 June 2010, Carl Lowenstein wrote: > On Wed, Jun 9, 2010 at 2:06 PM, Hittner, David T (IS) > > wrote: > > Be careful if you are using the wireless NIC of the netbook. Read > > the SIMH FAQ about wireless Ethernet, particularly the info about > > Decnet Phase IV compatibility, and be prepared to adjust cluster > > timeouts as required; significant delays can occur during wireless > > disruptions. > > > > As to VUPs, the netbook can't be worse than a VAX-780 :-) > > Surely you jest. The speed of CPUs has increased by three orders of > magnitude since the days of the VAX-780. Measured nowadays in GHz > not MHz. So it would take a lot of interpretive overhead to throw > that away. > > As I recall, the 780 was about 0.5 MHz, and the run-of-the-mill > netbooks are 1.6 GHz. 10MHz according to my 11/780 maintenance manual, unless you mean 0.5MIPS which I hear is close to accurate (1VUP anyways). Of course, the I/O speed on the 780 is a lot better than a ~1VUP VAXstation would be.. Pat -- Purdue University Research Computing --- http://www.rcac.purdue.edu/ The Computer Refuge --- http://computer-refuge.org ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
