Specifies that words reserved in IBM COBOL for OS/390 R2V2 are to be treated as reserved words..
>>-.---.-.----.--OS390-------------------><
+-/-+ +-NO-+
None
| Default: | NOOS390(Dialect ) |
| Phase: | Syntax check |
| $SET: | Initial |
OS390 sets DBSPACE and DBCS"3" immediately.