* DECLARE                                                               00050002
*   1  BBMB BASED(BBMBPTR),                                             00100002
*  /*  THE BACKGROUND PARAMETER BLOCK (BBMB) IS BUILT BY THE         */ 00150002
*  /*  BACKGROUND MONITOR PROGRAM.  IT CONTAINS ADDRESSES OF         */ 00200002
*  /*  BACKGROUND I/O INFORMATION.                                   */ 00300002
*      2  BBMBKGET PTR(31),          /* ADDR OF BKGRD INPUT INFO     */ 00350002
*      2  BBMBKPUT PTR(31),          /* ADDR OF BKGRD OUTPUT INFO    */ 00400002
*      2  BBMBSTAT PTR(31),          /* ADDR OF BKGRD I/O STAT CODES */ 00450002
*      2  BBMBPARM PTR(31);          /* RESERVED FOR FUTURE USE      */ 00500002