Radio Shack TRS-80 PC-4

b. Complete change of one line
Example:
Change "w = A - B" on line 30 to "w = V /2".
Operation: ~ [I)
• Write the new line 30.
30uW§lVIIZ.
• Confirm the program list.
~~
LIST III
I 510
P ,,:,.123456789
[
510
30 W=V/Z
READY
P0
10 INPUT A.B
20 V=A*B
30 W=V/2
40 PRINT
V.W
50
END
READY
P0
(IDAddition
Addition may be made in line units by writing new lines between existing lines.
Example: Add "U = V *2" between line numbers 30 and 40 of the previous example
and change line 40
to "PRINT V, W, U".
Operation: ~[I)
~ 510
P ';f~ 123456789
• Input line number 35 to make input between line numbers 30 and 40.
35uU ElVDZIII
I 502
35 U=V*2
* For inputting between Iine numbers 30 and 40, line numbers may be freely selected
in the
range from 31 through 39.
• To change line 40, call it out using a LIST command and add ",U".
LIST 40111
•
502
40 PRINT V,W
500
50 END
500
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