Restrictions

1. This macro may not be used prior to the completion of WLM address space initialization
2. All parameter areas must reside in current primary or be addressable by the dispatchable unit access list.
3. The caller must provide storage for an answer area mapped by IWMECD. This answer area may reside in the caller's primary address space, or in a dataspace accessible via the current unit of work's dispatchable unit access list (DUal).