CONTROL KEY AND FUNCTIONS
The control key (CTRL) is used with other keys to control functions.
To use it, press the control key simultaneously with other keys; for some func-
tions, you must then press the RETURN key. For some functions, there will be
no visible indication. For other functions, a character will appear on the display
screen as two characters side by side — the A character followed by a second
character. For example, AH (called CTRL-H) represents a backspace.
The same control command can have different functions in different programs.
Consult the appropriate software manual to determine which control functions
are to be used.
Common control functions in CP/M programs:
CTRL-C CP/M system reboot (warm start)
CTRL-E
Physical end of line: carriage is returned, but line is not sent until
RETURN key is depressed
CTRL-P
Copies all subsequent console output to the currently assigned list
device (e.g., a printer) and the console device until the next CTRL-P is
typed
CTRL-R
Retypes current command line: types a "clean line" following
character deletion with rubouts
CTRL-S
Stops the console output temporarily. To restart, press any key.
CTRL-U
Cancels the entire line typed at the console and moves the cursor to
new line
CTRL-X
Deletes the current line and returns cursor to the beginning of the
same line
CTRL-Z
End input from console (used in PIP and ED)
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