SAMBK | Back to Index page

| Prolog Control Block Contents SAMBK DSECT Storage Layout Cross Reference (Contains links to field and bit definitions) |
Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

SAMBK Prolog | Top of page

     NAME       : HCPSAMBK
     DESCRIPTION: SNAPPED AREA'S MAP BLOCK
     DSECT      : SAMBK
     FUNCTION   : A SAMBK CONTAINS THE POINTER AND CONTROL INFORMATION
                  TO ACCESS THE SNAPPED SAVERAREAS AND SNAPPED DATA AREAS
                  IN THE SOFT ABEND DUMP FILE.
     LOCATED BY : DFISAMBK FIELD IN HCPDFIR
      TILIZED BY - THE SOFT ABEND PROCESSOR (HCPABN)
     DELETED BY : N/A
     SERIALIZED : THE SOFT ABEND LOCK (HCPABNLK) WHEN A SOFT ABEND
                  DUMP IS OCCURRING.
     RELOCATION CONSIDERATIONS : None

SAMBK Control Block Content | Top of page

     SAMBK DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      SAMBK          SNAPPED AREA'S MAP BLOCK
    0000    0 Signed       4 * (0)          FORCE WORD BOUNDARY
    0000    0 Character    8 SAMBKID        EYECATCHER FOR IDENTIFICATION
    0008    8 Bitstring    1 SAMSDMFL       STATUS FLAG FOR THE SDMBK
              1... ....      SAMSDINA       X'80' SAMSDINA INVALID BEGINING
                                            SNAP LIST ADDRESS
              .1.. ....      SAMSDTRN       X'40' SAMSDTRN SNAP LIST
                                            TRUNCATED, SOFT ABEND WORK AREA
                                            IS FULL, SNAP DATA NOT SAVED
              ..1. ....      SAMSDINL       X'20' SAMSDINL INVALID SDPL, THE
                                            LIST CONTAINS MORE THAN 128
                                            ENTRIES OR IS MISSING AN EOL
                                            INDICATOR
    0009    9 Bitstring    1 *              IBM RESERVED
    000A   10 Signed       2 SAMSDMCT       COUNT OF SDMBK'S
    000C   12 Address      4 SAMSDMBK       ADDRESS OF THE SNAP DATA MAP
                                            BLOCK (HCPSDMBK) LIST
    0010   16 Bitstring    1 SAMSSMFL       STATUS FLAG FOR THE SSMBK
              1... ....      SAMSSINA       X'80' SAMSSINA INVALID BEGINING
                                            SAVEAREA ADDRESS
              .1.. ....      SAMSSTRN       X'40' SAMSSTRN SNAP SAVEAREA LIST
                                            TRUNCATED, SOFT ABEND WORK AREA
                                            IS FULL, SAVEAREAS NOT SAVED
    0011   17 Bitstring    1 *              IBM RESERVED
    0012   18 Signed       2 SAMSSMCT       COUNT OF SNAPPED SAVEAREAS
    0014   20 Address      4 SAMSSMBK       ADDRESS OF THE SNAP SAVEAREA MAP
                                            BLOCK (HCPSSMBK) LIST
              00000018       SAMBKLN        *-SAMBK LENGHT OF SAMBK
              00000003       SAMSIZE        (*-SAMBK+7)/8 DWRD SIZE OF SAMBK

SAMBK Storage Layout | Top of page

    *** SAMBK - SNAPPED AREA'S MAP BLOCK
    *
    *     +-------------------------------------------------------+
    *   0 |                       SAMBKID                         |
    *     +------+------+-------------+---------------------------+
    *   8 |:SDMFL|//////|  SAMSDMCT   |         SAMSDMBK          |
    *     +------+------+-------------+---------------------------+
    *  10 |:SSMFL|//////|  SAMSSMCT   |         SAMSSMBK          |
    *     +------+------+-------------+---------------------------+
    *  18
    *
    *** SAMBK - SNAPPED AREA'S MAP BLOCK

SAMBK Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    SAMBKID        0000
    SAMBKLN        0014 00000018
    SAMSDINA       0008 80
    SAMSDINL       0008 20
    SAMSDMBK       000C
    SAMSDMCT       000A
    SAMSDMFL       0008
    SAMSDTRN       0008 40
    SAMSIZE        0014 00000003
    SAMSSINA       0010 80
    SAMSSMBK       0014
    SAMSSMCT       0012
    SAMSSMFL       0010
    SAMSSTRN       0010 40

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:30:09 EDT.
Copyright IBM Corporation, 1990, 2020