SIMH Emulator

SIMH Emulator
A great project, allowed me to experiment more easily than with the real machine.

My SuSE Linux 10.2 requires -lrt to build with real time so I had to make a slight change to SIMHs makefile:
add LDFLAGS = -lrt inside "Unix environments"

Other than that it works fine with VMS 5.5-2. Ethernet works OK, I have installed UCX for TCP/IP and I can use my MacBook as an X-Terminal with it. :) Screenshot

The instructions here were also very useful.

SIMH has the capability to detect IDLE state in the emulated machine, so this line:
set cpu idle=VMS
added to vax.ini should keep the host system load reasonable.