4.3BSD - /usr/man/cat4/cons.0

CONS(4)                                                                CONS(4)


NAME
       cons - VAX-11 console interface

DESCRIPTION
       The  console  is  available to the processor through the console regis‐
       ters.  It acts like a normal terminal, except that when the local func‐
       tions  are  not  disabled,  control-P puts the console in local console
       mode (where the prompt is ‘‘>>>’’).  The operation of  the  console  in
       this mode varies slightly per-processor.

       On an 11/780 or 785 the processor is not stopped by entering local con‐
       sole mode.  The CPU may be halted with the ‘‘halt’’ command, which  may
       be  abbreviated  to  ‘‘h.’’  Conversational mode is re-entered by using
       the command ‘‘set t p’’ (set terminal  program)  if  the  processor  is
       still running, or ‘‘continue’’ if it is halted.  The latter command may
       be abbreviated ‘‘c’’.  If you hit the break key on  the  console,  then
       the  console  LSI-11  will  go into ODT (console debugger mode).  Hit a
       ‘‘P’’ (upper-case letter p; ‘‘proceed’’) to get out of this mode.

       On an 11/750 or an 11/730 the processor is halted whenever the  console
       is  not  in  conversational mode, and typing ‘‘C’’ returns to conversa‐
       tional mode.  When in console mode on an  11/750  which  has  a  remote
       diagnosis module, a ^D will put you in remote diagnosis mode, where the
       prompt will be ‘‘RDM>’’.  The command ‘‘ret’’ will return  from  remote
       diagnosis mode to local console mode.

       The  VAX  8600  (8650)  console  normally  works in the same way as the
       11/750, except that there are many additional modes and  commands.   In
       the  normal  mode  control-P  halts  the processor, and ‘‘c’’ or ‘‘con‐
       tinue’’ returns to conversational mode.  If HEX debug is enabled,  con‐
       trol-P  does not halt the CPU; the ‘‘halt’’ command stops the CPU as on
       the 11/780.

       With the above proviso’s the console works like any other  UNIX  termi‐
       nal.

FILES
       /dev/console

SEE ALSO
       tty(4), reboot(8)
       VAX Hardware Handbook


4th Berkeley Distribution        May 19, 1986                          CONS(4)