Programming Interface Information: This information is NOT intended to be
used as Programming Interfaces of z/VM.

SAMBK

Prolog
Control Block Contents
SAMBK DSECT
Storage Layout
Cross Reference

SAMBK Prolog

 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
 UTILIZED BY  THE SOFT ABEND PROCESSOR (HCPABN)
 DELETED BY : N/A
 SERIALIZED : THE SOFT ABEND LOCK (HCPABNLK) WHEN A SOFT ABEND
              DUMP IS OCCURRING.

 

SAMBK Control Block Content

SAMBK DSECT

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' INVALID BEGINING SNAP LIST
                                        ADDRESS
          .1.. ....      SAMSDTRN       X'40' SNAP LIST TRUNCATED, SOFT
                                        ABEND WORK AREA IS FULL, SNAP
                                        DATA NOT SAVED
          ..1. ....      SAMSDINL       X'20' 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' INVALID BEGINING SAVEAREA
                                        ADDRESS
          .1.. ....      SAMSSTRN       X'40' 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

          
*** 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

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 V3R1.0.
Last updated on 30 Mar 2001 at 08:37:42 EDT.
Copyright IBM Corporation, 1990, 2001