1CONS(4)                    Kernel Interfaces Manual                    CONS(4)
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NAME

6       cons - PDP-11 console interface
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DESCRIPTION

9       The  console  is  available to the processor through the console regis‐
10       ters.  It acts like a normal terminal, except that typing control-P  on
11       the  consoles  of  some PDP-11's puts the console in local console mode
12       with an ODT (console debugger mode) prompt.  The operation of the  con‐
13       sole in this mode varies per-processor.  See the PDP-11 Processor Hand‐
14       book for your particular processor.
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16       On an 11/44 the console can be put into local mode by typing a control-
17       P.   The ODT prompt is ``>>>''.  The processor is not stopped by enter‐
18       ing local console mode.  The CPU may be halted with the  ``halt''  com‐
19       mand,  which  may  be  abbreviated to ``h.'' Conversational mode is re-
20       entered by using the command ``c'' (continue).
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22       On 11/73 the processor's front panel halt switch must be pressed to put
23       the  console into ODT mode.  The ODT prompt is an ``@''.  No characters
24       typed on the console are special while UNIX is in control of  the  con‐
25       sole.
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FILES

28       /dev/console
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SEE ALSO

31       tty(4), reboot(8)
32       PDP-11 Hardware Handbook specific to hardware
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364th Berkeley Distribution        July 27, 1987                         CONS(4)
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