Section 13,6: ASSIGN

 Assigns the value of a statement label to an integer variable.
 Statement format:

    ASSIGN s TO v

    s  Is the label of an executable statement or a 
       FORMAT statement.  You must specify the label 
       as an unsigned integer (from 1-5 characters
       long, using digits 0-9).

    v  Is an integer variable.

 When the value of a statement label is assigned to an integer
 variable:  the variable can then be used as a transfer destination
 in a subsequent assigned GOTO statement or as a format specifier in
 a formatted I/O statement.  The ASSIGN statement must be in the
 same program unit as and must be executed before the statement(s)
 in which the assigned variable is used.