Commodore Plus 4 - Correcting typing mistakes

BASIC Version 3.S Commands, Functions, and System Variables 48
130 PAINT, 160,100
140 CHAR,2,2, "YOU HAVE DRAWN A "+S$
145 REM USE D£LAY LOOP TO PROLONG SHAPE DISPLAY
150 FOR Y = 1 TO 300: NEXT Y
155 REM SWITCH BACK TO TEXT MODE
160 GRAPHIC 0,1
165 REM END OF SUBROUTINE
170 RETURN
GOTO or GO TO
GOTO line number
Abbr. gO
Tells the computer to branch to another line and continue execution there. You
can also use GOTO in immediate mode to jump into a program and begin
executing it. The difference between executing a program with a RUN command
and an immediate mode GOTO is that the RUN command clears all variables
before executing the program, and GOTO does not.
Parameter: line number
GOTO can send execution to a later or earlier line in the program. When
GOTO sends the program back to a previously executed line, an infinite loop
results unless you also include a statement or mechanism such as a counter to end
the loop.
Examples: 10 INPTJT"WHAT'S YOUR NAME"; N$
20 GOTO 10
NEW
10 INPUT "WANT TO REPEAT"; N$
SO IP LEFT$(N$,1) = "N" THEN END
30 GOTO 10
GRAPHIC
GRAPHIC mode, clear
GRAPHICCLR
GOTO sends the program
back to line 10 each time line
20 is executed; this causes an
infinite loop.
GOTO sends the program
back to line 10 unless you
answer N to the INPUT ques
tion. Typing N ends the loop.
Abbr. gR
Switches to one of the four graphic drawing modes, or from a graphic drawing
mode to the text modes. You can also clear the screen or the bit-mapped memory
area that is set aside for graphics when you enter one of the graphic drawing
modes.