The unit verification routine, IEFEB4UV, is for both problem program
callers and for authorized callers. It runs in task mode in the caller's
key.
To use IEFEB4UV, the calling program must do the following:
- Create the input data structures and parameter list
- Place the address of an 18-word save area in register 13
- Provide a recovery environment
- Pass control to IEFEB4UV using the LINK and LINKX macro.
On return, IEFEB4UV restores all registers except register 15,
which contains a return code.