Invoking the Service

After setting the required fields, your exit routine can invoke the ECT service by calling the exit services router whose address is in field ADPLSERV in the BLSABDPL mapping macro. Set register 1 to contain the address of the following three consecutive parameters:

The address of the ABDPL.
The address of the ECT service code (ADPLSECT).
The address of the ECT service parameter list (ADPLPECT) mapped by the BLSABDPL mapping macro. You must obtain storage for or establish addressability to the ECT service parameter list. Before initializing the fields, remember to set the fields to 0.

Field ADPLPECT in data area BLSABDPL maps the ECT parameter list. If you want your exit routine to request a type of exit, set the individual bit strings within field ADPLPEFG. For example, to process the TCB exit routines, set the ADPLPETB bit to 1, and set the ABPLCBP field to contain the address of the block. To process the ASCB exit routines, set the ADPLPEAS bit to 1, and set the ADPLCBP field to contain the address of the block. Set field ADPLPEFG to contain zeros. Set field ADPLPEVB to contain one of the IBM-supplied verb names or its corresponding module name.

References

See the following:

For a mapping of the BLSABDPL data area, see z/OS MVS™ Data Areas in the z/OS® Internet Library: &zosliburl;.
z/OS MVS IPCS Commands for the VERBEXIT subcommand and the list of verb names and module names that you can specify