[Simh] Boot ROMs (was Simulating a GT40)

[Lars Brinkhoff]

Timothe Litt wrote:
> For -10 comm front ends, a bit in the -10 interface (DL10 or DTE20)
> causes the M93xx (or other) ROM to assert AC LO on the Unibus,
> allowing the host to gain control of the -11 for load or dump.

Thanks.  This is very useful information for me.  There is no suitable
KL10 simulator to run ITS, but if one were to be created, this is one
detail that should be made to work.  The machine had two PDP-11/45s
attached, one through DTE20 and one through DL10.