[Simh] PDP-11 DC-11 tty support?

[Tim Newsham]

We've been entering 1972 kernel sources into a machine readable format
from a scan of an old printout
(http://minnie.tuhs.org/pipermail/tuhs/2008-April/001697.html).

I've started looking over the hardware required to run this version
of UNIX and it seems that they used the DC-11 (with at least six
devices, but perhaps as much as 8 or 9?) for terminal IO.  There's
also support for the console (simh TTI and TTO) but old manuals
I've found online suggest that the console was only used in single
user mode.  So it seems getting support for the DC-11 device would
be very useful for running this old version of UNIX.  Unfortunately
I don't see any support for it in SIMH.

Has anyone written such support?  Investigated it?  How hard would it
be?  Is documentation for this device available (other than the source
code for device drivers)?  Are there any other emulators that currently
support the DC-11?

Tim Newsham
http://www.thenewsh.com/~newsham/