Difference between revisions of "SIMH"
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== Emulated Systems == | == Emulated Systems == | ||
=== Altair 8800 === | === Altair 8800 === | ||
| − | This is the Altair 8800 emulator | + | This is the Altair 8800 emulator which can run both AltairDOS and CP/M 2.2 |
=== Altair Z80 === | === Altair Z80 === | ||
Revision as of 17:14, 3 September 2010
SIMH (home page)consists of simulators for about 20 different machines, and as such, is a very important emulator for anyone interested in computer history, in particular, that of DEC systems, as the PDPs and even the VAX is well emulated by it. It can even emulate network interfaces for the PDP-10, PDP-11 and VAX, so the emulated systems can network directly onto the internet, if the emulated operating system supports it, like BSD or VMS.
SIMH was primarly written by Bub Supnik of Zork porting fame, and is now widely contributed by others as well.
Contents
Emulated Systems
Altair 8800
This is the Altair 8800 emulator which can run both AltairDOS and CP/M 2.2
Altair Z80
SIMH emulates the Altair architecture with your choice of either a Z80 or Intel 8080 processor. It can run CP/M.
HP2100
I really don't know much about this machine, but I included a way to run the basic1 program I found online. It kind of reminds me of the ROMBASIC back 'in the day'... It's basic with line numbers so I know it's kind of old.. I really don't know much otherwise about this machine.
Interdata 8/32
The interdata 8/32 micro was the first non PDP-11 to run UNIX. SIMH can run both v6 & v7 research editions for the Interdata.
Nova
SIMH can run RDOS 7.5 for the Nova.
DEC PDP-1
The original PDP-1 is emulated although most of the software is expected to be toggled from the console, or loaded from paper tape. SIMH does not emulate the display needed for spacewar.
DEC PDP-8
The PDP-8 was the first 'affordable' microcomputer... OS/8 runs under SIMH.
DEC PDP-11
The PDP-11 is emulated enough to run most PDP-11 OS's including the early unix (v1,4,5,6,7 are known to run).
MicroVAX II
SIMH can run the MicroVAX II with as much as 256mb of emulated ram. Both VMS, NetBSD, OpenBSD and original BSD can run on this emulator. Additionally, the network adapter functions correctly under this emulator, unlike the VAX-11/780.
VAX 11/780
SIMH can also emulate the first model of the VAX, the VAX-11/780. This is appropriate for older OS's like VMS release 1.x and the original 32v, 3BSD and all 4BSD releases.
Usage
SIMH can either take in configuration parameters interactivly, or you can store them in a file. If the file is the name of the emulator+.ini it will load them automatically (eg vax.exe loads vax.ini automatically). The CONTROL+E key will break the emulation and bring you back to the simh console where you can alter the running state.
Networking is covered in the Networking with SIMH guide.
Support
While not immediatly obvious, there is a mailing list here http://mailman.trailing-edge.com/pipermail/simh/. I would recommend searching the thing, and you'll be amazed how much good information there is in there. Likewise, I'd recommend joining the list if you are interested in running SIMH. You can join here.
