Function flags (EMFUNCT)
A one-byte field that identifies the functions to be performed:
| Bit | Bit Name | Meaning When On |
|---|---|---|
| 0 | EMPUTLIN | Issue the messages using PUTLINE |
| 1 | EMWTP | Issue the messages using WTO to the programmer |
| 2 | EMRETURN | Return messages in the user-supplied buffer |
| 3 | EMKEEP | Do not free the storage associated with the message blocks chained out of the request block extension |
| 4 | EMWTPCDE | Authorized caller is overriding default ROUTCDE and DESC codes |
| 5-7 | EMRSV01 | Not an intended programming interface |