dmr::7:3::/usr/dmr

wget http://simh.trailing-edge.com/sources/simhv38-1.zip

unzip *
mkdir BIN
make pdp11
cd BIN

wget http://simh.trailing-edge.com/kits/uv7swre.zip
unzip uv7swre.zip

./pdp11

PDP-11 simulator V3.8-1
sim> set cpu u18
Disabling XQ
sim> set rl0 RL02
sim> att rl0 unix_v7_rl.dsk
sim> boot rl0
@boot
New Boot, known devices are hp ht rk rl rp tm vt
: rl(0,0)rl2unix
mem = 177856

# cat /etc/passwd
root:VwL97VCAx1Qhs:0:1::/:
daemon:x:1:1::/:
sys::2:2::/usr/sys:
bin::3:3::/bin:
uucp::4:4::/usr/lib/uucp:/usr/lib/uucico
dmr::7:3::/usr/dmr:

# ^E
Simulation stopped, PC: 002306 (MOV (SP)+,177776)
sim> exit
Goodbye