From mboxrd@z Thu Jan 1 00:00:00 1970 From: gregg.drwho8@gmail.com (Gregg Levine) Date: Sat, 3 May 2014 18:20:55 -0400 Subject: [TUHS] Work I've done with a PDP-11 simulator In-Reply-To: References: <20140430021954.6E6FB18C0FC@mercury.lcs.mit.edu> Message-ID: Hello! What he said. I believe we all are interested. ----- Gregg C Levine gregg.drwho8 at gmail.com "This signature fought the Time Wars, time and again." On Sat, May 3, 2014 at 6:14 PM, SPC wrote: > Of course I am :-) > > Kind Regards > SPc. > > > 2014-04-30 4:19 GMT+02:00 Noel Chiappa : > >> Hello, all: I'm working (long-term) on a project to bring back to life the >> V6+ Unix system (it wasn't vanilla V6 - it looks like it had some PWB >> stuff >> added) that was used on a number of machines at the Laboratory for >> Computer >> Science at MIT in the late 70s - early 80s. >> >> >> As part of that, I've been playing with bringing up V6 on a PDP11 >> simulator, >> and have written some stuff that would probably be useful to anyone who's >> interested in bringing up Unix on a PDP-11 simulator. >> >> I used the Ersatz-11 simulator from D-Bit (for no particularly good >> reason, >> except it runs under Windoze, and the "FAQ on the Unix Archive and Unix on >> the PDP-11" page said it was the fastest). >> >> I have been very pleased with this simulator; it is indeed fast (my >> simulated >> 11/70 runs at about 100 MIPS on a relatively elderly Athlon, which is >> about >> 30 times as fast as a real one used to :-), and it has lots of nice >> features >> (e.g. you can TELNET in to a terminal port on the simulated PDP-11). >> >> It also has this nice virtual device that allows a program running on the >> simulated PDP-11 i) access to files in the Windows file system, and ii) to >> issue commands to the emulator. I have written a V6 driver for it (should >> be >> fairly easy to adapt to V7 or later), and a suite of Unix commands to grab >> a >> file off the Windows file system (both binary and text mode), and issue >> various commands to the simulator. >> >> Finally, I have a number of Windows commands to do various useful things, >> such as read a file off a simulated Unix V6 file system (hosted in a >> Windows >> file), including ports of a number of Unix commands (e.g. ncheck, nm, >> etc); I >> don't detail them all here as I don't want this email to get too long (and >> boring). >> >> >> I'm not sure if anyone's interested in any of this; if so, I can send >> in more info (or whip up a Web page, whichever would be better). >> >> I also ran into a number of pitfalls on the way to getting V6 running, >> using >> RK05 disk images from the TUHS archive, and I can do a short writeup on >> 'How >> to bring up V6 under Ersatz-11' if anyone's interested. >> >> Noel >> _______________________________________________ >> TUHS mailing list >> TUHS at minnie.tuhs.org >> https://minnie.tuhs.org/mailman/listinfo/tuhs > > > > > -- > Gracias | Regards > > Saludos - Greetings - Freundliche Grüße - Salutations > -- > Sergio Pedraja > > twitter: @sergio_pedraja > skype: Sergio Pedraja > http://plus.google.com/u/0/101292256663392735405 > http://www.linkedin.com/in/sergiopedraja > http://www.quora.com/Sergio-Pedraja > http://spedraja.wordpress.com > https://www.xing.com/profile/Sergio_Pedraja > http://www.viadeo.com > http://www.avalonred.com/ > ----- > No crea todo lo que ve, ni crea que está viéndolo todo > > _______________________________________________ > TUHS mailing list > TUHS at minnie.tuhs.org > https://minnie.tuhs.org/mailman/listinfo/tuhs >