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Article - Discuss SIMH

Category:Emulator -> SIMH

SIMH is a suite of emulators. Of the emulated systems, the most widely used are probably the Vax (3900 and 780), PDP-11, PDP-10.

While a number of operating systems past to contemporary can be installed on the Vax 3900 (KA655) emulator, including OpenVMS, NetBSD, OpenBSD, and 4.3BSD Quasijarus, not so much is available for the relatively new Vax 780 emulator. Of interest are early versions of VMS, 32V Unix, and 4.2BSD.

My personal interest in the PDP-11 emulator is limited to V7 Unix.

The PDP-10 emulator will run ITS, TOPS-10, and TOPS-20. Sadly, the latter doesn’t support the late-stage versions of TOPS-20 sporting TCP/IP - which means that for the time being, KLH10 is the only choice.

Documents:

Install4.3BSDQuasijarus
SIMHNetworking

Downloads:

4.3BSD Quasijuarus0c

* simh.quas0c (simh config file)
* quas0c.tap.bz2 (installation tape image)
* ra82-quas0c.dsk.bz2 (root disk)

NetBSD 3.0 (Vax)

This image has an empty root password; the network is unconfigured. The unpacked !NetBSD 3.0 sources are on a disk image of their own; it can be mounted using “mount /dev/ra3a /usr/src”.

* nvram.bin
* simh.tun.cfg (simh config file)
* ra0-ra92-netbsd30-root.disk.bz2 (root disk)
* ra3-ra92-netbsd30-src.disk.bz2 (/usr/src)

OpenBSD 3.8 (Vax)

* ra0-ra92-openbsd38-root.disk.bz2 (root disk)
* ra3-ra92-openbsd38-src.disk.bz2 (/usr/src)
* simh.tun.cfg (simh config file)

Ultrix 11 v2.16 (pdp11)

You can install Ultrix in a pdp11 emulator from simh. You can get the tape image from Bitsavers: BB-X302B-BC_ULTRIX-11_V2_16USR_BIN_1984.tap.gz.
This is the config file for simh:

SET CLK 50HZ
SET CPU 11/24
SET CPU 256K

SET CR DISABLED
SET DZ DISABLED
SET HK DISABLED
SET LPT DISABLED
SET PTP DISABLED
SET PTR DISABLED
SET RHA DISABLED
SET RK DISABLED
SET RP DISABLED
SET RQ DISABLED
SET RX DISABLED
SET TQ DISABLED
SET VH DISABLED
SET XQ DISABLED

SET RL ENABLED
SET RL0 RL02
ATT RL0 ULT20.RL2

SET RHB ENABLED
SET TU ENABLED
SET TU TM03
SET TU0 TU77
ATT TU0 BB-X302B-BC_ULTRIX-11_V2_16USR_BIN_1984.tap
;BOOT TU0

and here install pdp11 ultrix you can get a detailed boot/configuration. Documents are located in Bitsavers too.

Links:

Home Page
software packages

Categories:

• Emulator
  • SIMH