Commodore PET User Manual page 199

Next. enter cursor movements. along with any other characters. ending with
another set of quotation marks. When a cursor key is pressed following an odd
number of quotation marks, the cursor movement is programmed and a sym-
bolic representation (see Table 3-1) of the cursor movement is printed. The
PET remains in this program mode until it encounters an even number of
quotation marks; then it returns to immediate mode.
1 00
F'F~
ItH "....M:"
ctt
Quotation set #1: change immediate mode ta program mode
Programmed representation of cursor right
Quotation set #2: change program mode ta immediate mode
When the PRINT statement is subsequently executed. the PET interprets the cur-
sor representations and moves the cursor accordingly.
F.:UN
;t.
:+;
To practice simple programmed cursor movement. type in the following
program:
10
PRINT" <CLEAR SCREEN>":
20 PRINT" <CURSORI >* <CURSOR j >* <CURSOR j >* <REVERSE> <CURSOR»*
<cURSORl >* <CURSORj >*"
30 PRINT" <CURSOR 1> <CURSOR j> <CURSOR 1> <CURSORI >";
The program should look like this on your screen:
1
(1
PF~ l ~·lT ":1" .;
20 PR l
~H
Il
»n~m~"."'lt
Il .;
:';:(1
PR l NT
Il
:1ll:~I~J"
4"-1 Et·jI1
Upon execution. the output should appear as follows:
~:I
... ~:I
+.
::1
+.
This may or may not have been what vou expected. If Vou expected the character
sequence:
to print the asterisks in a vertical line:
*
or if Vou expected the character sequence:
186