HPVBK

Prolog  

Control Block Contents  
   HPVBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

HPVBK Control Block Content

HPVBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      HPVBK          HYPERPAV ALIAS POOL BLOCK
0000    0 Character    8 HPVEYE         00 EYE CATCHER 'SYSHPVBK' or
                                        'GVMHPVBK'
0008    8 Bitstring    4 *              01 RESERVED FOR IBM USE
000C   12 Address      4 HPVVMD         01 ADDRESS OF THE OWNING BASE
                                        VMDBK
0010   16 Signed       4 HPVINUSE       02 HIGHEST POOL NUMBER IN USE
                                        Value of -1 means none in use
0014   20 Bitstring    4 *              02 RESERVED FOR IBM USE
0018   24 Bitstring    8 *              03 RESERVED FOR IBM USE
0020   32 Bitstring    8 *              04 RESERVED FOR IBM USE
0028   40 Bitstring    8 *              05 RESERVED FOR IBM USE
0030   48 Bitstring    8 *              06 RESERVED FOR IBM USE
0038   56 Bitstring    8 *              07 RESERVED FOR IBM USE
0040   64 Bitstring    8 *              08 RESERVED FOR IBM USE
0048   72 Bitstring    8 *              09 RESERVED FOR IBM USE
0050   80 Bitstring    8 *              10 RESERVED FOR IBM USE
0058   88 Bitstring    8 *              11 RESERVED FOR IBM USE
0060   96 Address      4 HPVHPPS (1000) 12-511 ADDRESS OF UP 1000 HPPBKs
     !  Notes      : The HPVHPPS pointers point to a PAGE in memory. Each
     !  page contains room for 16 HPPBKs. So, to find a particular
     !  HPPBK you take its Pool Number and divide by HPPNUMNT.
     !  The quotient is the index into the HPVHPPS array and the
     !  remainder is the index into the HPPBK page.
          00003E7F       HPVMAXPL       HPVNUMNT*HPPNUMNT-1 HIGHEST VALID
                                        POOL NUMBER

HPVBK Storage Layout

          
*** HPVBK - HYPERPAV ALIAS POOL BLOCK
*
*     +-------------------------------------------------------+
*   0 |                        HPVEYE                         |
*     +---------------------------+---------------------------+
*   8 |///////////////////////////|          HPVVMD           |
*     +---------------------------+---------------------------+
*  10 |         HPVINUSE          |///////////////////////////|
*     +---------------------------+---------------------------+
*  18 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  20 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  28 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  30 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  38 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  40 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  48 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  50 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  58 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  60 |                                                       |
*     =                       HPVHPPS                         =
*     |                                                       |
*     +-------------------------------------------------------+
*1000
*
*** HPVBK - HYPERPAV ALIAS POOL BLOCK

HPVBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
HPVEYE         0000
HPVHPPS        0060
HPVINUSE       0010
HPVMAXPL       0060 00003E7F
HPVVMD         000C