Posted by under Emulation,PDP,RSX-11M,SIMH on May 23 2017, 0 comments

I’ve never used RSX-11, or a real PDP, so for once this little project isn’t a pointless trip in to nostalgia-land, but a genuine attempt at me trying to learn something new (old actually). I have no use for an RSX install (unlike the VMS and Ultrix installs, which I actually use), so this is […]

Posted by under DECnet,Networking,SIMH,Ultrix,VAX on April 30 2017, 0 comments

It has taken a while, but I’ve finally got around to trying DECnet for Ultrix 4.0. For this you’ll need an image of the DECnet for Ultrix 4.0 install tape [here] You’ll also need a license to use it. You can find one if you look hard enough on t’internet but I’m not going to […]

Posted by under Android,Emulation,OpenVMS,SIMH,VAX on September 16 2015, 0 comments

I’ve thought long and hard on this one: SimH runs under Linux, and Android is based on Linux, so can you run SimH, and thence a simulation of a VAX, on an Android phone/tablet? Well, obviously you can, but it really is a bit of a fiddle. There is an Simh Android App to do […]

Posted by under Emulation,PR1MOS,Prime on November 15 2013, 0 comments

For a while now, Jim Wilkcoxson has had a variety of PR1ME Emulators running on his site. They can only be accessed by telnet and the software is not freely available. To access them, telnet to¬† em.prirun.com 8001 Login as user “guest”, password “pr1me” After logging in, use the Prime HELP command for assistance. You […]

Posted by under Emulation,Networking,SIMH,TCP/IP,Ultrix,VAX on July 2 2012, 0 comments

I’ve had a look at getting an old copy of ULTRIX (Unix for the VAX) running. Having already got Simh up and running, I just cloned the SD card from the VMS host and deleted the VMS specific bits, copied across an image of the Ultrix 4.0 install tape, knocked together a shonky .ini file […]

Posted by under DECnet,Emulation,Networking,OpenVMS,SIMH,VAX on June 18 2012, 0 comments

After getting TCP/IP and a web server working on the simulated VAX, the next logical step would seem to be getting DECnet up and running, and then connecting to other machines. Given the choice of HECnet or the Italian Hobbyist DECnet, I plumped for HECnet. Then, of course I set about doing everything in completely […]

Posted by under Emulation,Networking,OpenVMS,SIMH,TCP/IP,VAX on June 1 2012, 0 comments

It is time to get TCP/IP up and running on the PIVAX. So once again I’m cribbing this from Phil Wherry’s guide to running VMS on SIMH and Linux. (Note, from now on PIVAX is the simulated VMS machine, and vax-pi is the Raspberry Pi on which it runs.) The fake MAC address of PIVAX […]

Posted by under Emulation,Linux,OpenVMS,SIMH,VAX on May 25 2012, 1 comment

Emulating a MicroVAX 3900 running OpenVMS 7.3 on a Raspberry-Pi…   Starting from my Common Debian Raspberry Pi/Debian Networking SD image some things need to be installed. sudo apt-get install m4 sudo apt-get install flex sudo apt-get install bison At this point creating a user for the Vax and switching to that user is probably […]