Transfers control to a labeled subroutine in a command procedure.
The RETURN command terminates the GOSUB subroutine.

Format
 GOSUB label

Additional information available:

Parameter

label
 A valid label (1 through 255 alphanumeric characters, terminated by a
 colon, first item on the line) in the command procedure. If two or
 more labels are identical, control passes to the nearest label
 preceding the GOSUB command, or to the nearest label following the GOSUB
 command if no duplicate labels precede the command.