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Pausing, Stopping and Continuing Programs
If the computer operator does not intervene, a program will run until it rcach<:'s an END.
STOP, or PAUSE statement, or until it pauses to input data or report an error. If you
wish to pause or stop a program before its normal completion, continue operation, or
abort an I/O statement, use the following keys:
Table 2-3. Pausing and Stopping Programs
98203B/C
ITF
98203A
Keyboard
Keyboard
Keyboard
Effect
I
PAUSE
I
~
I
PSE
I
Pauses program execution after the computer
(Pause)
finishes the line it is on and any I/O operations
in progress. This is useful for pausing a program
that is executing an INPUT statement. It leaves
all necessary internal information intact, so that
program execution can be resumed again with
the index INPUT statement the
I
CONTINUE
I
key
(see below) or CONT command.
I
CONTINUE
I
[][]
I
CONi]
Pressing
I
CONTINUE
I
after a PAUSE (key or
(Continue)
statement) causes program execution to resume
in a normal manner from the place where it was
paused.
I
CLR 1/0
I
I
Break
I
@JZQJ
Aborts any I/O statement in progress (such as
ENTER or TRANSFER) and pauses the pro-
gram. The program counter is returned to the
beginning of the ahorted I/O statement, so that
the
I
CONTINUE
I
key or the CONT command
cause the program to resume program execution
beginning with that same statement. This is use-
ful when the computer is "hung" trying to out-
put to a device that is down.
2-12
Introduction to the System
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