Open SIMH

When I first posted to the PiDP-11 group. Someone recommended downloading and building the PDP-11 simulator from Open SIMH. At the time I was just interested in running the basic simh. However now that the PiDP-11 software is running on my old Pi, I decided to look into it today.

make pdp11          ...to build the simulator!

So it’s Open SIMH V4.1-0 as opposed to V3.8-1

simh startup now looks like this…

$ ../../bin/pdp11

PDP-11 simulator Open SIMH V4.1-0 Current simh git commit id: 021413a2
Disabling RK
Disabling HK
Disabling TM
/home/bill/MyStuff/Computer_Simulator_Emulator/Emulators/Mini/simh/PDP-11/0-rsts-built [works]/pdp11.ini-7> att cr -A cards.txt
%SIM-INFO: CR: unit is read only
/home/bill/MyStuff/Computer_Simulator_Emulator/Emulators/Mini/simh/PDP-11/0-rsts-built [works]/pdp11.ini-8> att rl0 rl0.minsys
%SIM-INFO: RL0: ‘rl0.minsys’ Contains a RSTS File system
%SIM-INFO: RL0: Pack ID: SYSTEM Revision Level: 0.0 Pack Clustersize: 2
%SIM-INFO: RL0: Last Unallocated Sector In File System: 10219

Device DP23: does not interrupt – device disabled.
Device DP26: does not interrupt – device disabled.
Device DP27: does not interrupt – device disabled.
Device DP30: does not interrupt – device disabled.

RSTS V7.0-07 llama (DL0)

Option: