$XABALL_STORE

   The $XABALL_STORE macro moves user-specified values into fields
   of the specified XABALL. The expanded $XABALL_STORE code executes
   at run time on a previously initialized (allocated) XABALL, in
   contrast to the $XABALL macro, which initializes a XABALL at
   assembly time. The $XABALL_STORE macro must reside in a code
   program section.

   Format

     $XABALL_STORE  XAB=xaball-address,

                    AID=#area-identification-number,

                    ALN={ANY|CYL|LBN|RFI|VBN},

                    ALQ=#allocation-quantity,

                    AOP=<CBT CTG HRD ONC>,

                    BKZ=#bucket-size,

                    DEQ=#extension-quantity,

                    LOC=#location-number,

                    NXT=next-xab-address,

                    RFI=#related-file-identification,

                    VOL=#volume-number