[Simh] Simulating a GT40

[Lars Brinkhoff]

Timothe Litt wrote:
> A unit doesn't have to be a UNIT; one can clone a master DEVICE to get
> multiple address ranges. It's been a while, but I'm pretty sure I did
> that for some device.

Ok, I can look into that if Mark gives me his blessing.

> Building demo/rom code into simh seems a bad idea for a lot of
> reasons.

One more reason: there could be custom ROMs.  This is not just
theoretical.  I have a bunch of binary ROM images which where used to
boot various PDP-11s off the network.