Re: [Simh] pdp11 - console input with high bit set

On Fri, Jul 24, 2020 at 4:18 PM Paul Koning wrote: > Parity is something that comes in addition to the data. DEC UARTS (and > many others, I think) > Appendix D of McNamara's book, *a.k.a.* the 40-pin WD1402 and 1402A :-) I once knew it well and at one time had an official WD manual for it (I

Re: [Simh] pdp11 - console input with high bit set

On Fri, Jul 24, 2020 at 2:37 PM Paul Koning wrote: > The right answer would be a tweak to the console emulation in SIMH pdp11. Mumble... Paul - I'm not so sure. While DEC used MARK a lot, there were places that used EVEN parity a lot also on PDP-11's (Lord how, I hated 20 mA current loop ;-)

Re: [Simh] Imlac simulator

On Fri, Jun 5, 2020 at 1:41 AM Lars Brinkhoff wrote: > I have been working on an Imlac simulator. This is so cool. That's a system I read about but never saw!! ___ Simh mailing list Simh@trailing-edge.com

Re: [Simh] Earlyish UNIX for the VAX

Please go to: The Unix Heritage Society (*a.k.a.* TUHS) and look in the Unix Archives. All of the sources you are interested in are there, some was raw tapes, other as distribution kits. It is organized by the organization that released the distribution. You will find

Re: [Simh] Is it possible to simulate the first Vaxen I ever used?

On Mon, Mar 23, 2020 at 3:57 PM Johnny Billquist wrote: > The VAX-11/750 used 2901 though... > 750 was made out of custom CMOS gate arrays. The main adder was analyzed as part of my thesis [long story - not for here, but a very clever circuit. I would later get to know the guy that did it].

Re: [Simh] Is it possible to simulate the first Vaxen I ever used?

On Mon, Mar 23, 2020 at 9:33 AM Robert Armstrong wrote: > The 730 was interesting in that ALL of the CPU microcode was in RAM and > was loaded by the CFE at boot time. It was possible to locally modify the > 730 microcode, and DEC even had a set of microcode development tools for > the 730.

Re: [Simh] hp alternatives

Here is a pointer to a number of different basics. https://www.thefreecountry.com/compilers/basic.shtml It has been a while, but accept for the issue that Kevin mentioned of lacking the VMS (or TOPS) system services, I have used a couple of these run some old Vax/PDP-10/RSTS DEC Basic codes.

Re: [Simh] Of DEC and cards

One last reply here, but CCing COFF where this thread really belongs... On Thu, Feb 13, 2020 at 12:34 PM Timothe Litt wrote: > OTOH, and probably more consistent with your experience, card equipment was > > almost unheard of when the DEC HW ran Unix... > You're probably right about that Tim,

Re: [Simh] Various

On Thu, Feb 13, 2020 at 11:38 AM Clem Cole wrote: > I think I saw a card read/punch only once on a PDP-6 IIRC, but it might > have been a KA10. I don't think I ever saw one on a PDP-8/11 or Vaxen. > The more I think about it, there must have been one or two in the mill or the mac

Re: [Simh] Various

On Thu, Feb 13, 2020 at 10:50 AM Timothe Litt wrote: > Among others, DEC OEM'd Documation card readers. > > https://www.youtube.com/watch?v=se0F1bLfFKY > Mark - sorry to go a little direct (simh) topic here [this sort of belongs on Warren's COFF mailing list), but since the Card discussion

Re: [Simh] load

One other thought - it will likely take a little work, by years ago Jim Reeds of UCB took the old Harvard Macro11 and Link11 tools from the original 1977 USENIX distribution tape and hacked on them/updated them for 2BSD. The important thing for you is he rewrote the linker into C (the originals

Re: [Simh] XKCD!

 ᐧ On Tue, Oct 29, 2019 at 3:16 PM Larry Stewart wrote: > https://xkcd.com/2221/ > > ___ > Simh mailing list > Simh@trailing-edge.com > http://mailman.trailing-edge.com/mailman/listinfo/simh ___ Simh

Re: [Simh] tty magic(?) for talking to bootloaders?

Using it as you have is very cool; but as Lars mentioned, the other important point is that using expect(1) framework outside of simh, means it will work for other emulators and other things. FYI: the idea of 'expect' was first part of the UNIX uucico program to do the 'chat' portion of scripting

Re: [Simh] tty magic(?) for talking to bootloaders?

Try using expect(1). Write an expect script to do the basic boot. That will no matter the os or simulator. Once you get to the point you want you can give control back to the terminal. On Sat, Sep 21, 2019 at 7:03 PM Tom Perrine wrote: > Hi all, > > So far I've got Multics, V7 and BSD4

Re: [Simh] Fwd: VAX + Spectre

Paul - be careful. All CPU's post the IBM AGS that used branch prediction are suspect. Russ Robelen (who was the 360/50 lead, worked on 360/90 and lead AGS) has the speculative executing patent. I tweaked him when it all came out and said - look at what you did. What Russ and team are great

Re: [Simh] going back to the VAX console with CTRL P

Nelson (and Mark), IMO, this is the issue with in-band systems. No matter what you pick, it is going to conflict with something. ^P was an issue on the vax console. Hey ^S/^Q being 'in-band' has always been an issue for lots of things (which is why us UNIX types used DH11's with RTS/CTS

Re: [Simh] Disk Technology was Which PDP-11 to choose

ed out 4 times. > > > > Carrying them up stairs to the computer room was not fun. The platter size > may have been reduced. But the weight!!! > > > > Tim > > *From:* Simh [mailto:simh-boun...@trailing-edge.com] *On Behalf Of *Clem > Cole > *Sent:* 01 July 2

Re: [Simh] Which PDP-11 to choose

as 14"), but not everyone, for instance, the Fujitsu Eagle used 10.5-inch platter. FWIW: I answered a bunch of this in: https://www.quora.com/How-do-hard-drives-get-smaller-and-smaller-in-size-bigger-and-bigger-in-capacity-every-year-when-the-fundamental-physical-processes-behind-them-do-not-change/answer

Re: [Simh] Which PDP-11 to choose

019, at 12:07 AM, Eric Smith wrote: > >> On Sun, Jun 30, 2019, 19:37 Clem cole wrote: >> You can use RH70 (massbus controllers) and just use the larger (originally >> expensive) 19” disks from the early days. > >

Re: [Simh] Which PDP-11 to choose

Btw. The biggest advantage of the later model qbus systems is some larger but cheaper scsi options that dec released later in life but none of that has ever mattered to me in practice when running simh. You can use RH70 (massbus controllers) and just use the larger (originally expensive) 19”

Re: [Simh] Which PDP-11 to choose

IMO if you want to program the system split ID is helpful as 64k is very small. Thus the 11/70 or 11/44 are my go to systems. Your call. Sent from my PDP-7 Running UNIX V0 expect things to be almost but not quite. > On Jun 30, 2019, at 8:52 PM, Will Senn wrote: > > All, > > Is there any

Re: [Simh] RP/RM differences in header commands (for ITS, salvager)

FWIW: When Ted and I wrote fcsk in the mid 1970s, (after some arguing about assuming perfect media) we added the notion of a bad block list to the assign to the bad block file (it was not in the original code), but we knew nothing about BAD144 at the time since we both were students. Ultrix

Re: [Simh] Limits on MSCP controllers

On Mon, Jun 24, 2019 at 2:13 AM Timothe Litt wrote: > > > MSCP is basically an evolution of the Massbus protocol, on a different > PHY, and informed by the TOPS-10/20 experiences with high-end (large, > redundant, on-line serviceable) configurations. > That was certainly my impression/memory.

Re: [Simh] Creating a blank (NOVA) disk image

Stephen, You did not ask how to create a larger file or if you want to know how to format a DG disk for the OS like RDOS. You also did not say what system you are using to run simh. The reality is that I would not think that simh would care, as traditional C semantics on the 'create' system

Re: [Simh] Imaging SCSI HD's

I love Mark's solution in the theory, but the systems I have that continue to have solid SCSI support don't have a copy of simh, nor enough local disk for the output. What I have done in the past is something on the order of: dd if=/dev/RSCSI_DISK ibs=VERY_LARGE obs=4k conv=sync | ssh

Re: [Simh] Help with loading vax82b zip file into simh/vms

Phil, The terms originated in the IBM 360 “principles of operation” book which I have here for the model 67. To wit: “instructions operate on units called halfword (2 bytes), fullword(4 bytes), doubleword (8 bytes), quad word (16 bytes). FWIW The IBM ‘storage block’ was 2048 bytes

Re: [Simh] 101 Basic Games for RSTS/E (was Re: PDP11 on Simh for public access)

Will here is your answer: *... I also put together a bunch of games I had written and collected from others and put them into a book, 101 Basic Computer Games. Six years later, in 1979, this became the first million-selling computer book ever."* ᐧ On Mon, Jan 21, 2019 at 6:09 PM Al Kossow

Re: [Simh] 101 Basic Games for RSTS/E (was Re: PDP11 on Simh for public access)

On Sun, Jan 20, 2019 at 6:46 PM Will Senn wrote: > Sorry to dredge up an old thread, but I’m curious as to the provenance of > the tape. > An interesting question that I think that is going to be very hard because of time and what we now call 'Open Source.' I personally consider Ahl as the

Re: [Simh] Historical gaming devices

Right, the 12 had A/D and joystick - the later is actually why the original Masscomp system had a joystick, not a mouse (a separate story - WRT's the 12's HW lead, the late Lorin Gale). There might be an ISPS description of it somewhere. ᐧ On Mon, Jan 14, 2019 at 5:17 AM Pontus Pihlgren wrote:

Re: [Simh] Simulating Fortran

Will Let’s take this offline. I think I can talk you through this. Clem Sent from my PDP-7 Running UNIX V0 expect things to be almost but not quite. > On Dec 29, 2018, at 6:51 PM, Will Senn wrote: > > Hi all, > > I’m looking for a good lead on two things - 1. A fortran environment for >

Re: [Simh] Systems Engineering Labs (SEL) simh simulator available

On Wed, Dec 26, 2018 at 7:03 PM David Brownlee wrote: > Well, Joyent also makes binary pkgsrc packages for SmartOS, macOS, and > CentOS/REL :) https://pkgsrc.joyent.com/ > xkcd on standards sigh. Note: I have lived this issue at Intel for +10 years BTW [we make a

Re: [Simh] Transferring the licence file to the VAX emulator

I try one more time on list, but if you want to discuss more, let's go off-list. On Mon, Dec 17, 2018 at 2:56 PM Paul Koning wrote: > > Not unique to VMS nor even to DEC. I agree - that is exactly what I was saying. It was the way I/O was done in the 60s - which seems to have had a rebirth as

Re: [Simh] Transferring the licence file to the VAX emulator

The problem is the license manager code you are running into is expecting an RMS file, not a Stream I/O. In the old days, the idea of 'access methods' was the natural ways OS's did I/O and RMS was VMS's answer. Since today's programmers tend to have grown up with C/C++/Java and stream I/O, you

Re: [Simh] TINTE is not TECO either

BTW: My old friend and college, Paul Cantrell's Video Teco is still one the best and most portable: Video Teco Manual Video Teco Sources Also, Ward has a notice description/history of Teco in his pages: Tape Editor and

Re: [Simh] PDP10: KS10 console lights?

On Fri, Sep 7, 2018 at 1:52 AM Lars Brinkhoff wrote: > Timothe Litt wrote: > > > I have checked the KS10 instruction set. It doesn't have a DATAO > > > PI, instruction. However that particular opcode isn't in used, so > > > it's just a UUO. This is also the case for ITS microcode. Before I >

Re: [Simh] Simulated PDP-7 Unix V0?

Before I begin.. I need to warn you. I'm not a lawyer, although I have been trained in a bunch of this specific topic from my days as an expert witness, working with the both the LCC Lawyers, the DEC Lawyers and now I actually am trained and teach the internal required course of all SW engineers

Re: [Simh] Simulated PDP-7 Unix V0?

gad dyslexia sucks... the sentence was supposed to say: This is true for all UNIX implementations, including the UNIX-like/work alikes from Idris, Coherent, Sol, and Linux ᐧ On Wed, Sep 5, 2018 at 10:38 AM Clem Cole wrote: > below... > > On Wed, Sep 5, 2018 at 7:36 AM Al Koss

Re: [Simh] Simulated PDP-7 Unix V0?

below... On Wed, Sep 5, 2018 at 7:36 AM Al Kossow wrote: > On 9/5/18 4:24 AM, Al Kossow wrote: > > > > > So the newer UNIXes are in the clear. I doubt anyone actually cares > about > > version 0 either, but technically it's still under copyright. > >

Re: [Simh] Simulating a GT40

below... On Tue, Sep 4, 2018 at 10:26 AM Al Kossow wrote: > > Eventually Valid switched to Sun. > Makes sense... > > They started out with their own 68010 multibus hardware which was licensed from Stanford - this is Andy Bechtolsheim masters project design (originally 68000 then after some

Re: [Simh] Simulating a GT40

minor nit/detail ... On Mon, Sep 3, 2018 at 2:05 PM Timothe Litt wrote: > Once our CAD group moved off the -10s, the next step was Sun > workstations for schematic capture (VALID). > > Valid was not Sun Micro Systems. The were Stanford University Network Termnal (aka SUN), that were

Re: [Simh] SCSI-Interface for simh-vax?

below... On Sat, Sep 1, 2018 at 2:39 PM Zane Healy wrote: > Create a virtual disk in SIMH the size of the CD-R blank. Prep the disk, > then burn it to CD-R. This is how I created my bootable CD’s for RT-11 and > RSX-11M+. I’ve then used those CD’s to do installs on my PDP-11/73. I > wasn’t

Re: [Simh] VAX emulation issues on Raspberry Pi

I'm going to send this once here -- please take any follow up off line to me privately. I don't want to seed a discussion of goodness or badness of different compilers. This is purely as an FYI for those that may not be aware. *Comments are my own and do not neccessarily represent official

Re: [Simh] Install VAX/VMS 4.4 on a simulated VAX-11/780

below... On Thu, Mar 29, 2018 at 7:51 AM, Henk van de Kamer <s...@vandekamer.com> wrote: > Clem Cole schreef op 25-3-2018 om 23:23: > >> A small suggestion... while you can probably get the 780 to recognize >>> and support a TU58, booting from it may b

Re: [Simh] Install VAX/VMS 4.4 on a simulated VAX-11/780

A small suggestion... while you can probably get the 780 to recognize and support a TU58, booting from it may be difficult (I did not find it mentioned in any SDP or other doc). The 780 family has a dedicated PDP-11 with RX floppy drives that runs as the 'front end' for it and boots it. The

Re: [Simh] Install VAX/VMS 4.4 on a simulated VAX-11/780

lists: Info-vax Archives <http://rbnsn.com/pipermail/info-vax_rbnsn.com/> and maybe subscribe to their mailing list http://rbnsn.com/mailman/listinfo/info-vax_rbnsn.com Best wishes, Clem Cole ᐧ On Fri, Mar 23, 2018 at 10:45 AM, Henk van de Kamer <s...@vandekamer.com> wrote: >

Re: [Simh] IMP interfaces

IIRC the imp11-a is built from a dr11-b with some custom interface logic to talk to the 1822 (thinking about it it was maybe 2 back to back I’ve forgotten) but from a SW stand point the registers are what is exposed by the dr11. Although the CSS folks may moved the default addresses.At

Re: [Simh] IMP interfaces

On Wed, Mar 7, 2018 at 2:30 PM, Phil Budne wrote: > > >Can the IMP software and the H316 simulator talk TCP/IP to an ehernet > card? > > If we had TCP-era IMP code, one could, in theory, but as I recall the > structure of the TCP ARPAnet (net 10) address was that one octet was

Re: [Simh] pdp11 i/o addressing

On Fri, Feb 16, 2018 at 4:35 PM, Larry Baker wrote: > In a true VM architecture, different objects can be distinguished by their > program addresses. This is a key distinction between memory mapping and > virtual memory > ​Larry - I 100-% agree with you. My point was that

Re: [Simh] Simh Digest, Vol 169, Issue 53

Strange: % brew list sdl2 /usr/local/Cellar/sdl2/2.0.7/bin/sdl2-config /usr/local/Cellar/sdl2/2.0.7/include/SDL2/ (72 files) /usr/local/Cellar/sdl2/2.0.7/lib/libSDL2-2.0.0.dylib /usr/local/Cellar/sdl2/2.0.7/lib/cmake/SDL2/sdl2-config.cmake /usr/local/Cellar/sdl2/2.0.7/lib/pkgconfig/sdl2.pc

Re: [Simh] Installing SDL2 on Mac To Build SIMH

If you have brew installed try: brew install sdl2 ᐧ On Fri, Feb 16, 2018 at 3:23 PM, Rob Jarratt wrote: > I don’t have a Mac but I need someone to be able to build SIMH on his Mac > and be able to link SDL2. I have looked at this page: >

Re: [Simh] pdp11 i/o addressing

+1 Paul's comments some resources - cut and pasted from a message to a young engineer/mentee/student I have at the moment ;-) PDP11 Processor Handbook 1979 AA-5075A-TC PDP-11 MACRO-11 Language Reference Manual

Re: [Simh] anyone know how to convert/translate turbo pascal to vax pascal?

gin > >read(f,c); > >read(g,d); > >i := i + 1; > > if (c <> d) then > > writeln(h,i,' = 1:[',c,']/',ord(c),' 2:[',d,']/',ord(d)); > > end; > >close(f); > >close(g); > >close(h); > > end. > > > > -

Re: [Simh] anyone know how to convert/translate turbo pascal to vax pascal?

I'm at the airport so I do not have a manual -- again please, please download On Thu, Feb 8, 2018 at 12:21 PM, Dan Gahlinger wrote: > > > f, g, h : text; > ​I think the VMS syntax is something like... f : FILE OF TEXT; then later OPEN( File_Variable := f,

Re: [Simh] anyone know how to convert/translate turbo pascal to vax pascal?

NDECLID, (1) Undeclared identifier ASSIGN > at line number 16 in file DUA1:[DAN]FCOMP.PAS;4 > %PASCAL-E-ENDDIAGS, PASCAL completed with 1 diagnostic > > -- > *From:* Clem Cole <cl...@ccc.com> > *Sent:* February 8, 2018 10:58 AM > *To:* Dan Gahlinger > *Cc:* Gary Lee Phillip

Re: [Simh] anyone know how to convert/translate turbo pascal to vax pascal?

Dan, As others have said something smells wrong here. It's true the original '71 report from Wirth did not defined I/O and '72 revised report only defined write. By the time of the Jensen & Wirth book from Springer-Verlag in the mid-late '70s writeln is there. And by the time of the first

Re: [Simh] Crowther's Adventure game

Again speaking for myself ... not Intel... On Mon, Feb 5, 2018 at 4:27 PM, Kenneth Seefried wrote: > > Have you looked at the Intel Fortran compiler (https://software.intel.com/ > en-us/fortran-compilers)? Intel/AMD-only, of course. Supports > Fortran-IV/77 through at

Re: [Simh] EXT :Re: DEC Alpha Emulation

My apologies to the list -- I did a reply all - I had intended that last message to be sent only to Tim. Clem ᐧ ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh

Re: [Simh] EXT :Re: DEC Alpha Emulation

ht (I hope). Anyway -- back to work ᐧ On Mon, Feb 5, 2018 at 3:10 PM, Timothe Litt <l...@ieee.org> wrote: > On 05-Feb-18 13:36, Clem Cole wrote: > > > > ​Point taken, but DEC used the SPD as its primary defense for exactly this > type of problem.​ It was the 'legal'

Re: [Simh] EXT :Re: DEC Alpha Emulation

On Mon, Feb 5, 2018 at 1:05 PM, Timothe Litt <l...@ieee.org> wrote: > On 05-Feb-18 12:01, Clem Cole wrote: > > The *word *you left out was probably the issue. > ​Fair enough ..​ > *We just didn't make adding a node to a cluster difficult and mysterious > enough.

Re: [Simh] EXT :Re: DEC Alpha Emulation

On Sat, Feb 3, 2018 at 7:28 PM, Zane Healy wrote: > I had found a nearly new PWS 433a in a used computer shop, that didn’t > know what it was worth > ​ > ​Likely to have been one of the NT/Alpha's in the wild. It was a dirty little secret in ZKO and MRO that they worked

Re: [Simh] EXT :Re: DEC Alpha Emulation

dyslexia sucks, sorry... s/could properly/couldn't properly/ On Fri, Feb 2, 2018 at 8:44 PM, Clem cole <cl...@ccc.com> wrote: > Be careful. The comment about many of the pci boards were only NT while > that is true really is somewhat different. For instance both vms an tru64 &g

Re: [Simh] PDP for beginners

On Sat, Feb 3, 2018 at 8:12 AM, Pär Moberg wrote: > On 03/02/2018, Bob Eager wrote: > > On Sat, 3 Feb 2018 11:41:38 - > > "Dave Wade" wrote: > > > >> > -Original Message- > >> > From: Simh

Re: [Simh] EXT :Re: DEC Alpha Emulation

Be careful. The comment about many of the pci boards were only NT while that is true really is somewhat different. For instance both vms an tru64 (and FreeBSD for that matter) will all boot and run fine with an Adaptec 1542 controller (the 500au in my office only had same in it) The SPD

Re: [Simh] Crowther's Adventure game

On Fri, Feb 2, 2018 at 10:04 AM, Paul Koning wrote > > From what I remember, "carriage control" still applies; "TYPE" seems to be > simply a shorthand for "WRITE (5," I believe I remember that there was more to it than that explicitly when it 'knew' you were a TTY, but

Re: [Simh] Crowther's Adventure game

On Fri, Feb 2, 2018 at 9:12 AM, Ken Cornetet < ken.corne...@kimballelectronics.com> wrote: > I have vague recollections that FORMAT(/) prints a new line > ​Sounds right - I'm O-O-O, but I​'ll try to verify with the compiler folks when I'm on the office again. > > Format(20A5) takes 20 elements

Re: [Simh] Bliss versus C

On Tue, Jan 30, 2018 at 9:45 AM, Johnny Billquist wrote: > if they had been able to get a pdp-10 then Unix would not have happened. > ​That was Ken describing the Tenex development in the introduction to his Turning award: *"I suspect Daniel Bobrow would be here instead of me

Re: [Simh] Clem-Cole's Quora Answer - Why is Fortran Still in Use?

On Mon, Jan 29, 2018 at 3:26 PM, Larry Baker wrote: > Hey Clem, > > Can you post a link here like you did for your Fortran post that I can > use to read your Multics post? > Why-did-Unix-succeed-and-not-Multics ᐧ

Re: [Simh] BLISS and C

On Mon, Jan 29, 2018 at 1:33 PM, Paul Koning wrote: > > PL/I has begin/end as ALGOL does. I don't know where { } came from, but > it isn't from PL/I. What perhaps did come from PL/I is ; as terminator > rather than separator. Fair enough, although I will say I had a

Re: [Simh] BLISS and C

On Mon, Jan 29, 2018 at 8:20 AM, dave porter wrote: > I recall reading something from Dennis Ritchie to the effect > that if he'd been able to get hold of a BLISS compiler he > wouldn't have bothered to invent C. But DEC held on to > its compilers tightly. ​Hmmm..

Re: [Simh] DEC GEM vs. Intel compilers

elevant-in-HPC-Is-it-just-because-this-language-has-tremendous-numerical-calculation-capability-which-is-an-important-part-of-HPC/answer/Clem-Cole> ]. > ​... ​ > GEM was built & evolved by engineers from the ground up to support > multiple languages at equivalent optimization leve

Re: [Simh] 101 Basic Games for RSTS/E (was Re: PDP11 on Simh for public access)

On Sun, Jan 28, 2018 at 4:43 PM, khandy21yo wrote: > > Never had BLISS on anything until long after it would have been useful. So > how does BLISS compare to C as a systems programming language? Is it worth > learning at this late date? > ​I'll try to answer your questions

Re: [Simh] BLISS ( was Re: 101 Basic Games for RSTS/E (was Re: PDP11 on Simh for public access))

On Sat, Jan 27, 2018 at 1:25 PM, Tom Morris wrote: > On Fri, Jan 26, 2018 at 4:28 PM, Timothe Litt wrote: > >> the front end, IL optimizer, code generators and object generators >> > > IL optimizer == GEM "middle end" or was that a local colloquialism? >

Re: [Simh] BLISS ( was Re: 101 Basic Games for RSTS/E (was Re: PDP11 on Simh for public access))

On Fri, Jan 26, 2018 at 4:28 PM, Timothe Litt wrote: > I don't think there was any technical reason that the front end, IL > optimizer, code generators and object generators couldn't have been > separate sharable libraries - and separately patchable/upgradable. > ​I was under the

Re: [Simh] 101 Basic Games for RSTS/E (was Re: PDP11 on Simh for public access)

below.. at bit off topic from simulators sorry On Fri, Jan 26, 2018 at 3:35 PM, Hunter Goatley wrote: > On 1/26/2018 2:22 PM, Timothe Litt wrote: > >> >> BLISS would have done better in the outside world, except for the >> DECision to price it higher than the market

Re: [Simh] BLISS ( was Re: 101 Basic Games for RSTS/E (was Re: PDP11 on Simh for public access))

On Fri, Jan 26, 2018 at 2:17 PM, Johnny Billquist wrote: > > > I don't think BLISS-16 ran on PDP-10, but I could be wrong. I've never > seen or heard anything about BLISS-16 running on Alpha or beyond. ​Gem did exactly that conceptually.​ > I guess it could be possible to do,

Re: [Simh] 101 Basic Games for RSTS/E (was Re: PDP11 on Simh for public access)

On Fri, Jan 26, 2018 at 2:09 PM, Johnny Billquist wrote: > > Right. As far as I know, BLISS-16 only ran under VMS. Hmm I'd be careful here. As I understand it,​ Hobbs has implied they did the work on the 10 to start with because at the time TLG was using PDP-10s. As one of

Re: [Simh] BLISS ( was Re: 101 Basic Games for RSTS/E (was Re: PDP11 on Simh for public access))

On Fri, Jan 26, 2018 at 12:48 PM, Timothe Litt wrote: > I wrote a fair bit of BLISS at various stages of its evolution. My > recollection is: > > BLISS-10 & BLISS-11 came from Wulf & Co at CMU. BLISS-10 is self-hosted > ​Right - Wulf, Steve Hobbs et al, FWIW: I just had lunch

Re: [Simh] Assorted ramblings was: Re: VAX Tape Emulation?

On Thu, Jan 25, 2018 at 7:35 PM, Armistead, Jason wrote: > Clem and all > > > > Your knowledge of this and many other obscure (and not-so-obscure) > subjects from the “early days” never ceases to amaze me. If only there was > a way to capture all these anecdotes into

Re: [Simh] VAX Tape Emulation?

s/couple of people/couple of families/ ᐧ On Thu, Jan 25, 2018 at 8:47 PM, Clem Cole <cl...@ccc.com> wrote: > > > On Thu, Jan 25, 2018 at 7:46 PM, Johnny Billquist <b...@softjar.se> wrote: > >> >> Domain OS using 1056 bytes? On what systems? I used a lot

Re: [Simh] VAX Tape Emulation?

On Thu, Jan 25, 2018 at 7:46 PM, Johnny Billquist wrote: > > Domain OS using 1056 bytes? On what systems? I used a lot of DN3000, 4000 > and 5000 systems, and they used bog standard disk drives with 512 byte > sectors. (Interesting systems in some ways, but their windowing

Re: [Simh] 101 Basic Games for RSTS/E (was Re: PDP11 on Simh for public access)

On Thu, Jan 25, 2018 at 7:23 PM, Johnny Billquist wrote: > I thought Dave Ahl didn't come from that environment. I'm pretty sure Ahl was in Education System's group, which I thought at one point was in MRO (Marlboro).Small-systems was in the Mill. MRO was 36-bit land.

Re: [Simh] 101 Basic Games for RSTS/E (was Re: PDP11 on Simh for public access)

On Thu, Jan 25, 2018 at 6:44 PM, Johnny Billquist wrote: > if this might be from some other BASIC dialect that DEC had at some point. > ​I think this is the Tops-10 BASIC dialect ​ ᐧ ___ Simh mailing list Simh@trailing-edge.com

Re: [Simh] VAX Tape Emulation?

The old netnews copytape program from the 80s did the same thing. Somebody has a GitHub version of it: https://github.com/halfmanhalftaco/copytape ᐧ On Thu, Jan 25, 2018 at 5:47 PM, Johnny Billquist wrote: > Zane - unless I remember wrong, there is a tool from DECUS to copy

Re: [Simh] VAX Tape Emulation?

On Thu, Jan 25, 2018 at 4:57 PM, Mark Pizzolato wrote: > I think the documentation comment “cannot write variable-length blocks > and do not allow skipping forward over records between read operations” > was written when talking about the common cartridge tapes that were >

Re: [Simh] VAX Tape Emulation?

On Thu, Jan 25, 2018 at 4:14 PM, Larry Baker wrote: > Because UNIX tapes and tape drivers cannot write variable-length blocks > and do not allow skipping forward over records between read operations > ​That's not a correct statement. UNIX does it great - I've used it (and rmt)

Re: [Simh] VAX Tape Emulation?

The question is do the standard tape utilities know how to exploit it -- i.e. the moral equiv of the UNIX sequence: cmd -f - | rmt host I thought CJ and Co had some way to make that work in mid 90's versions of VMS but I've forgotten the details (many beers ago). ᐧ On Thu, Jan 25, 2018 at

Re: [Simh] VAX Tape Emulation?

On Wed, Jan 24, 2018 at 5:25 PM, Zane Healy wrote: > > I’d like to backup to a simulated tape drive on the one emulated VAX. > The largest drive on my Alpha is 50GB. I’d prefer not to have to span > tapes. :-) ​Another thought... what are you running the emulator on?

Re: [Simh] VAX Tape Emulation?

Zane, I'm not sure I follow your question. Tape sizes are defined by the reel, not the recording hardware. Since the device is a vector (starting at block 0) are conceptually unlimited (fixed by the number of bytes/blocks available in the length of tape). 9-track mag tapes in 12" reels were

Re: [Simh] PDP11 on Simh for public access

You tried to get it from someone else for your system often PaperTape/Floppy/MagTape as Paul described. By many times connecting the terminal to another system and 'printing' it. Often a glass TTY had a second 'printer port' and if you did some work, you could type it out. Truth is it was

Re: [Simh] Attach tar to tape device and access it from v7 in simh

aka BSD) was based V6, 2BSD was for V7. It was originally a tp tape, if you have a tar image of it, it was converted by someone. Clem On Tue, Nov 7, 2017 at 5:02 PM, Will Senn <will.s...@gmail.com> wrote: > On 11/7/17 2:45 PM, Clem Cole wrote: > > > > On Tue, Nov 7, 2017 a

Re: [Simh] Attach tar to tape device and access it from v7 in simh

On Tue, Nov 7, 2017 at 3:37 PM, Clem Cole <cl...@ccc.com> wrote: > You need to convert the foo.tar file to a foo.tap before simh's mag tape > reader will understand it. > ​1.) ​ gunzip 1bsd.tar.gz 2 ​.) enblock <1bsd.tar > ​1bsd .tap ​ ​3.) ​in simh:att mt0 1bsd.tap ​4.

Re: [Simh] Attach tar to tape device and access it from v7 in simh

You need to convert the foo.tar file to a foo.tap before simh's mag tape reader will understand it. If you want to skip that step, attach the foo.tar (or foo.tar.gz) file as a virtual disk. The open it as a raw device. Clem On Tue, Nov 7, 2017 at 2:58 PM, Will Senn wrote:

Re: [Simh] 8" Floppy disk image getting HALT error

Paul - offered great info. First are your sure these came from DEC systems? 8" floppies were originally developed (by IBM to load microcode on the 3330 disks) years before DEC started to use them. IIRC DEC only used them on PDP-8's and 11s. The Vaxen and PDP-10 actually connected to a

Re: [Simh] Mac Development of SIMH

Rob Let's take this off list. The quick answer is it depends on your expectations. The difference will primarily be that the compiler moved forward in time and the UX stuff has changed. The Unix-ness is pretty much constant. Clem Sent from my PDP-7 Running UNIX V0 expect things to be

Re: [Simh] simh & pdp-8 os-8 forums / help

set up you can download and examine. Check out: http://obsolescence.wixsite.com/obsolescence/pidp-software--documentation Good luck, Clem Cole On Sat, Jun 24, 2017 at 1:38 PM, Clem Cole <cl...@ccc.com> wrote: > https://xkcd.com/927/ > > On Sat, Jun 24, 2017 at 12:5

Re: [Simh] simh & pdp-8 os-8 forums / help

https://xkcd.com/927/ On Sat, Jun 24, 2017 at 12:53 PM, Al Kossow wrote: > > > On 6/24/17 9:40 AM, Buddy Bell wrote: > > Googling does not > > show any DEC PDP centric forums (So I created my own Yahoo group > > https://groups.yahoo.com/neo/groups/VintageDEC/info) > > Great,

Re: [Simh] Oddball platform as SIMH/pdp11 host

In theory - I do not see why not. IIRC its an YOCTO Linux port under the covers >>with some hacking<< I'd have to ask some of my brethren in the Intel OTC group exactly what was subsetted, although my worry is that some of the folks that worked on that may have left Intel. Also. I don't think

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

On Thu, May 11, 2017 at 4:37 PM, Johnny Billquist wrote: > True. However, it isn't actually the geometry that cause the Unix messup > here, but the fact that Unix divided disks into partitions. So it needed to > know where each partition started. And before disklabels, it was

Re: [Simh] How to access RT11/FIles11 floppy images on Windows?

there is a unix program called rtpip we wrote in the 1970s i can dig up a copy but not for a few weeks as i'm traveling but if you google under that name you might find it On Sat, Mar 18, 2017 at 5:50 AM, Timothe Litt wrote: > There probably is one. But the easiest thing to

Re: [Simh] Simh Digest, Vol 158, Issue 14

On Thu, Mar 9, 2017 at 2:16 PM, William Pechter wrote: > Unibus DH/DM backplane s and boards were not supported by DEC on Unibus... ​I assume you mean were not supported on the VAX UBA. And that would make sense.​ ___ Simh mailing

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