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@(#)cons.4 6.2 (Berkeley) 05/19/86

C 4 cons - VAX-11 console interface 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.

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.

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.

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.

With the above proviso's the console works like any other UNIX terminal.

/dev/console tty(4), reboot(8)

VAX Hardware Handbook