Mentec allows you to use up to version 9.6 in their
hobbyest
program, but I don't know if it is limited to emulators only.
Version 7, and emulators, available at
http://simh.trailing-edge.com/
Not only is it limited to emulators, but it's also limited to emulators
owned by DEC. The actual verbage in the license is:
"EMULATOR shall mean software owned by Digital Equipment Corporation that
emulates the operation of a PDP-11 processor and allows PDP-11 programs and
operating systems to run on non-PDP-11 systems."
It's commonly accepted that this means SIMH, as Bob Supnik was a DEC VP at the
time. You can see the complete license at my website:
http://www.aracnet.com/~healyzh/pdp11emu.html
There is a Hobbyist License in the works that would allow certain versions
of the OS's that Mentec has to be run on real hardware. Some unfortunate
circumstances have held it up though.
Zane