*COMDECK S$CALLR
          ITEM  S$CALLR      I;        # TYPE OF CALLER OF SORT/MERGE  #
              # 1 => SORT/MERGE WAS INVOKED FROM A CONTROL STATEMENT   #
              # 2 => SORT/MERGE WAS INVOKED FROM SM5END                #
              # 3 => SORT/MERGE WAS INVOKED FROM SMEND                 #
              # 4 => INTERACTIVE INTERFACE                             #
              # 5 => SORT/MERGE WAS INVOKED FROM SMABT                 #
