Changes Needed in SIMH to Support the HP 3000
=============================================

 + (scp.c) Modified ex_reg and dep_reg to pass VM-specific register flags
   to fprint_sym and parse_sym as the high word of the radix parameter.
   This allows these routines to apply special processing to individual
   registers (REG_VMAD and REG_VMIO are special cases of this).

   (sim_defs.h) Added REG_V_UF and REG_UFMASK definitions.

 + (sim_tmxr.c) Modified tmxr_set_get_modem_bits to report a Telnet
   disconnection due to DTR dropping, ("Disconnected from the HP 3000
   simulator").

 - Should tmxr_poll_conn disallow a Telnet connection if DTR is off?
   Otherwise, you get connected to a "dead" port.

 - Should tmxr_set_get_modem_bits be split into tmxr_set_modem_bits and
   tmxr_get_modem_bits?  All uses are for one or the other....

 - SAVEing on 3.9 and RESTOREing on 4.0 changes ATCD lines from local to
   remote ENQ/ACK, changes DATASET to DIRECT for line 2, and CAPSLOCK down
   movesfrom line 0 to line 2.  Problem is TTUF_V_UF is 18 (16 + 2) on 3.9
   and 20 (16 + 2 + 2) on 4.0.

 - Pasting the COBINT text into an EDITOR/ADD session in the console window
   loses characters with 4.0 but not with 3.9.  Pasting into HPTerm connected
   as the console via Telnet works OK in 4.0.