>
> My only thought was that I was running pdp11 SimH under a virtualization
> system (or in crude terms a simulator within a emulator/simulator) and
> wondered if that was the issue. But some searching showed a number of people
> who have successfully run SimH simulators under VMware at least. So at the
> moment I am inclined to believe that is not the issue.
I’ve run simh under virtualization without any problem.
I suggest you to try the current 4.0 beta, which is quite stable and adds a lot
of enhancements over 3.9. You can get the sources from github
((https://github.com/simh/simh <https://github.com/simh/simh>) and build it
yourself. I don’t know if there are precompiled binaries around, but to build
it is quite easy and the prerrequisites are just a few.
In any case, could you share your pdp11.ini file and maybe the image you are
using?
Jordi Guillaumes i Pons
j...@jordi.guillaumes.name
HECnet: BITXOW::JGUILLAUMES
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