Commodore VIC-20 Programmer's Reference Manual page 26

RUN
Format: Abbreviation: Screen Display:
HUN [line number] rKUBMu R Q
This command causes a BASIC program to begin operating. The
command RUN by itself starts the program at the lowest numbered
line. All variable values are cleared when this command is given.
RUN followed by a number causes the program to start working
from another line than the lowest numbered one. If that line number
does not exist, the message UNDEF'D STATEMENT ERROR
appears. RUN followed by a variable will first clear the value of that
variable, and try to start the program at line 0. il it exists.
RUN can also be used as a statement within a program. Keep in
mind that all variables are cleared when this statement is executed.
i
EXAMPLES:
RUN Starts at the beginning
RUN 100 Starts at line 100
RUN X Starts at line 0, or UNDEF'D
STATEMENT ERROR if no line 0
SAVE
Format: Abbreviation: Screen Display:
SAVE ["filename", S^S"?prJ A S J5
device, command]
The SAVE command stores a program currently in memory on
tape or disk. The program being SAVEd is not affected and remains
fn the VIC's memory after the save operation. Programs on tape are
stored twice automatically, so the VIC can check for errors when
LOADing the program back in.
The command SAVE all by itself sends the program to the
cassette deck without a name. When the command is given, the
VIC wil! say:
PRESS RECORD AND PLAY ON TAPE
Holding down the RECORD button, press PLAY, and the VIC will
say:
OK
SAVING
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