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12–18 Simple Programming
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm
Stopping or Interrupting a Program
Programming a Stop or Pause (STOP, PSE)
Pressing
f
(run/stop) during program entry inserts a STOP instruction.
This will halt a running program until you resume it by pressing
f
from the keyboard. You can use STOP rather than RTN in order to end a
program without returning the program pointer to the top of memory.
Pressing
{
e
during program entry inserts a PSE (pause) instruction.
This will suspend a running program and display the contents of the
X–register for about 1 second — with the following exception. If PSE
immediately follows a VIEW instruction or an equation that's displayed
(flag 10 set), the variable or equation is displayed instead — and the
display remains after the 1–second pause.
Interrupting a Running Program
You can interrupt a running program at any time by pressing
or
f
.
The program completes its current instruction before stopping. Press
f
(run/stop) to resume the program.
If you interrupt a program and then press
W
,
z
U
, or
{
,
you cannot resume the program with
f
. Reexecute the program instead
(
W
label).
Error Stops
If an error occurs in the course of a running program, program execution halts
and an error message appears in the display. (There is a list of messages and
conditions in appendix E.)
To see the line in the program containing the error–causing instruction, Press
z
d
. The program will have stopped at that point, (For instance, it
might be a
÷
instruction, which caused an illegal division by zero.)