Commodore PET User Manual page 115

Before RETURN
(:$="X"
F.:EAD'T'.
RUN.
After RETURN
F'HEloJ!
READ..,'.
~'*
The screen blanks and the word PHEW! is printed, but the X's are not
printed in between. Obviously the value of C$ is not being transmitted to the pro-
gram.
RUN clears ail variables to 0 and ail strings to null before beginning execu-
tion of a program. So C$ was set to null and that was what was printed in the pro-
gram loop (a null is "nothing"; it does not print nor does it move the cursorl.
Is there a way to transmit the value of C$ to the program? Instead of using
RUN. which initializes variables, vou can use GOTO 110 (110 being the line num-
ber of the first line of the program). This does not change any variable values.
Before RETURN
(:$="X"
READY.
c;OTO 110}~
After RETURN
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F'HE~~
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READY.
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102