Gosub

The Gosub command will instruct the current program to call to a specified label.

Gosub LAB1
:
 
LAB1:
  I = 3
  Return

A label can be set with a colon (:) to specify a point for GoTo or GoSub to begin execution.

  ADD_VALUE:
  LINKPOINT:

Labels cannot use reserved keywords, numbers, or include blank spaces.

The following labels are not permitted:

  Ladder:         'Reserved keyword
  123:            'Number.
  About 10:       'Blank space.