Assignment statement syntax

>>-ISREDIT--(var1,var2)--=--LABEL--lptr------------------------><

>>-ISREDIT--LABEL--lptr--=--labelname--+-------+---------------><
                                       '-level-'   

Return codes

 0

Normal completion.

 4

Label name not returned, specified line has no label.

 8

Label set, but an existing label at the same level was deleted.

12

Line number specified is beyond the end of data.

20

Severe error.