After setting the required fields, your exit routine can invoke the storage access 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 storage access service code (ADPLSACC).
• The address of the storage access parameter list (ADPLPACC) mapped by the BLSABDPL mapping macro. You must obtain storage for or establish addressability to the storage access parameter list.