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(3) Program debugging
Screen editor
The screen editor allows you to position the cursor to any location on the screen and to
delete, insert, correct, or renumber program lines.
1) Using the LIST command, list the portion of the program in which the line to be edited
is contained on the display.
2) Position the cursor to the location to be corrected.
3) Perform the necessary editing operation.
4) With the cursor left on the row on which editing has just been performed, press
the [= key.
Note 1: If a ......~ key operation is missing, editing will not be carried out.
Note 2: If the program lines are renumbered and the <-—
key is operated, the
statements will remain as they are.
Example
PRIMT
gi "M" should be
replaced
by "М"
(Ш indicates the
cursor.)
Modifyi
Position the cursor to the
РЇ Т Use(— to
contents of a listed
character to be corrected, by
position the
program line.
using the cursor control keys
cursor
to "М".
Cl)
)|ф)).
ед.
(2) Оуепуре
the correct character
РЫМ
Overtype the
Correcting "PRIMT"
(3) Press «nm key.
correct character
(М).
Тһе cursor will
move to the next
PRIXNT@ "X" must be
deleted
PRIB§NT
Position the
Deleting a character
(1)
Using the cursor control keys,
from a line.
position the cursor to the
cursor
to "X"
character to be deleted.
eg.
—
(2) Press «|
key
PRINT
Press (=) key.
Correcting
Press [mm
key.
—
28 —
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