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.\" Copyright (c) 1980 Regents of the University of California.
.\" All rights reserved.  The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\"
.\"	@(#)cons.4	6.2 (Berkeley) 5/19/86
.\"
.TH CONS 4 "May 19, 1986"
.UC 4
.SH NAME
cons \- VAX-11 console interface
.SH DESCRIPTION
The console is available to the processor through the console registers.
It acts like a normal terminal, except that when the local functions 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.
.PP
On an 11/780 or 785
the processor is not stopped by entering local console 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.
.PP
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 conversational 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.
.PP
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 ``continue'' returns to
conversational mode.
If HEX debug is enabled, control-P does not halt the CPU; the ``halt''
command stops the CPU as on the 11/780.
.PP
With the above proviso's the console works like any other UNIX terminal.
.SH FILES
/dev/console
.SH "SEE ALSO"
tty(4), reboot(8)
.br
VAX Hardware Handbook

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