Re: [Simh] The missing PDPs

On Wed, Aug 21, 2019 at 6:02 AM Pontus Pihlgren wrote: > 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 unti

Re: [Simh] The Missing PDP-8s

On Tue, Aug 13, 2019 at 10:18 AM Bob Supnik wrote: > As was pointed out, the existing PDP-8 CPU is basically a PDP-8/E or > -8/A. It's a mongrel. SIMH's FPP (floating point processor) peripheral emulates the version for the 8/a, but memory is limited to 32 kWords as in all models before the

Re: [Simh] The missing PDPs

On Mon, Aug 12, 2019 at 8:17 PM Johnny Billquist wrote: > As far as I can > remember, the changes needed compared to a PDP-8 is not much. PC is at > address 0 instead of internal to the CPU, and interrupts then store the > PC at 1, and start executing at 2. > All the rest of the CPU works the

Re: [Simh] The missing PDPs

On Mon, Aug 12, 2019 at 7:54 PM Ray Jewhurst wrote: > > Has any ever thought of writing simulators for the two missing systems, > the PDP-5 and the PDP-12? > Are you reacting to this recent post over on the PiDP-8/I list? https://groups.google.com/d/msg/pidp-8/1Rdv-Syg9H4/_KSeiGkmEgAJ If

Re: [Simh] SimH - PDP8 non existent io devices

On Sat, Dec 15, 2018 at 12:21 PM Harold Bell wrote: > I am mucking around with focal69 Which version? There are two major versions, the paper tape version and the OS/8 version. I assume there are more versions floating around beyond those two. Can you point us to the source of the media

Re: [Simh] Cluster communications errors

On Wed, Jul 18, 2018 at 12:21 PM Mark Pizzolato wrote: > > > The simh Ethernet layer has dramatically more internal packet buffering > (maybe 50 X) than anything real DEC hardware ever had. This might account > for the relatively smooth behavior I’m seeing. > More buffering can also mean more

Re: [Simh] simh OS X missing dependencies with brew packages

On Mon, Mar 19, 2018 at 11:54 AM, Mark Pizzolato wrote: > the besm6 simulator's > front panel needs sdl ttf support. On Linux (Ubuntu) this is provided > by the libsdl2-ttf-dev package. Maybe someone here can influence > the brew package maintainers to also add the OS X

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

On Thu, Jan 25, 2018 at 5:52 PM, Johnny Billquist <b...@softjar.se> wrote: > On 2018-01-26 01:34, Warren Young wrote: > >> On Thu, Jan 25, 2018 at 4:44 PM, Johnny Billquist <b...@softjar.se >> <mailto:b...@softjar.se>> wrote: >> >> I wonder

Re: [Simh] PDP11 on Simh for public access

On Thu, Jan 18, 2018 at 2:59 AM, Bryan Davies wrote: > > While I can login to the Pi on the VT100 and boot the emulator manually, > RSTS/E has a number of prompts within the boot dialogue (Date, Time etc) > which need to be answered before it is possible for a User to

Re: [Simh] AT 3B2 Emulator

On Mon, Nov 13, 2017 at 7:11 PM, Seth Morabito wrote: > > After several years in the making and lots and lots of reverse > engineering, I'm happy to announce that the AT 3B2/400 emulator now > boots and runs multi-user SVR3 UNIX. > Awesome! > For more information, please

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

On Wed, Nov 8, 2017 at 2:07 PM, Johnny Billquist wrote: > I bet that would be written in some ANSI C, for which you won't find a C > compiler for V7... > The latest Less 487 is still K C. Whether it'll build on UNIX V7 is a different question.

Re: [Simh] Terminal Emulation for SIMH?

On Tue, Sep 12, 2017 at 12:41 PM, Zane Healy wrote: > What terminal emulators are currently available for Mac OS X that support > VT emulation, specifically the emulation of the keypad? I can't try it right now, as my current keyboard doesn't even have a numpad on it, but

Re: [Simh] Question about special pidp8 simh and ADVENT

On Wed, Aug 16, 2017 at 8:49 AM, B Degnan wrote: > D.F. TOO BIG INIT It's a known problem with the FORTRAN runtime. It's one of the reasons William Cattey is working on a re-spin of the OS/8 RK05 images. If you don't want to wait for him to finish, you can grab what

Re: [Simh] 32V on SIMH

On Mon, Jan 30, 2017 at 6:03 AM, Jason Self wrote: > Mark Pizzolato wrote .. > > Anders Magnusson wrote: > > I usually use tar to/from a disk image. > > From host OS just to the disk file, and from the guest OS against > > the raw

[Simh] DECUServe: does it have the old PDP-8 archives?

While there is a scattering of old DECUS media images on various PDP-8 web sites, I was wondering if the current incarnation of DECUS has a complete archive of all the old DECUS software, including the PDP-8 software? I'm asking here because the web site doesn't say

[Simh] TSS-8 and ETOS free-redistribution licenses (PDP-8 operating systems)

I'm the current maintainer of the PiDP-8/I software project . I've been going through the files we distribute to make sure we have proper licenses for them and have come up short on a few things: the TSS-8 and ETOS disk images. I've simply been unable