/*****************************************************************/ 00100000
    /*                                                               */ 00200000
    /* THE VIOT (VALID IOMB TABLE) CONTAINS THE ADDRESS OF EACH      */ 00300000
    /* VALID IOMB WITHIN THE SHARED RESOURCE POOL.  THIS BLOCK IS    */ 00400000
    /* POINTED TO BY THE VSRT AND BY ALL AMB'S UTILIZING THE SHARED  */ 00500000
    /* RESOURCE POOL.  THE VIOT IS ONLY DEFINED FOR VS2.             */ 00600000
    /*                                                               */ 00700000
    /* VS2 RELEASE 3, 4/30/74, LEVEL=0                               */ 00800000
    /*                                                               */ 00900000
    /* METHOD OF ACCESS - RESPECIFY IDAVIOT AND VIOPTR BASED.        */ 01000000
    /*                                                               */ 01100000
    /*****************************************************************/ 01200000
    DCL 1 IDAVIOT BASED BDY(WORD),  /* VALID IOMB TABLE              */ 01300000
          2 VIOHDR,                 /* CONTROL BLOCK HEADER          */ 01400000
            3 VIOID  CHAR(1),       /* BLOCK ID - CONSTANT X'16'     */ 01500000
            3 *      CHAR(1),       /* RESERVED                      */ 01600000
            3 VIOLEN FIXED(15);     /* LENGTH OF VIOT                */ 01700000
    DCL VIOPTR BASED PTR(31);       /* PTR TO VALID IOMB             */ 01800000