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

#### SSMBK

Prolog

Control Block Contents
SSMBK DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### SSMBK Prolog

     NAME       : HCPSSMBK
     DESCRIPTION: SNAP SAVEAREAS MAP BLOCK
     DSECT      : SSMBK
     FUNCTION   : A SSMBK IDENTIFIES WHERE IN THE SNAP BUFFERS
                  STANDARD CP SAVEAREAS ARE PRESERVED.
     LOCATED BY : THE SSMBK IS LOCATED BY A SNAPPED AREAS MAP
                  CONTROL BLOCK (HCPSAMBK)
     CREATED BY : THE SOFT ABEND PROCESSOR (HCPABN)
     DELETED BY : N/A
     SERIALIZED : THE SOFT ABEND LOCK (HCPABNLK)

#### SSMBK Control Block Content

#### SSMBK DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      SSMBK          SNAP SAVEAREAS MAP BLOCK
    0000    0 Signed       4 * (0)          FORCE WORD BOUNDARY
    0000    0 Character    8 SSMBKID        EYECATCHER FOR IDENTIFICATION
    0008    8 Signed       4 SSMBKLST (0)   START OF VARIABLE LENGTH DATA
    0008    8 Address      4 SSMOADR        ORIGINATING SAVEAREA ADDRESS
    000C   12 Address      4 SSMSADR        SAVED SAVEAREA ADDRESS
              00000008       SSMENTLN       *-SSMOADR LENGTH OF SNAP
                                            SAVEAREAS MAP LIST ENTRY
              00000010       SSMBKLN        *-SSMBK LENGTH OF SNAP SAVEAREAS
                                            MAP LIST ENTRY AND THE
                                            EYECHATCHER
    0010   16 Signed       4 SSMNEXT (0)    NEXT SNAP SAVEAREAS MAP LIST
                                            ENTRY

#### SSMBK Storage Layout

    *** SSMBK - SNAP SAVEAREAS MAP BLOCK
    *
    *     +-------------------------------------------------------+
    *   0 |                       SSMBKID                         |
    *     +-------------------------------------------------------+
    *
    *** SSMBK - SNAP SAVEAREAS MAP BLOCK

    *** Overlay for SSMBKLST in SSMBK
    *
    *     +---------------------------+---------------------------+
    *   8 |         SSMOADR           |         SSMSADR           |
    *     +---------------------------+---------------------------+
    *
    *** Overlay for SSMBKLST in SSMBK

#### SSMBK Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    SSMBKID        0000
    SSMBKLN        000C 00000010
    SSMBKLST       0008
    SSMENTLN       000C 00000008
    SSMNEXT        0010
    SSMOADR        0008
    SSMSADR        000C

This information is based on z/VM V5R2.0. Last updated on 12 Apr 2006 at 17:26:45 EDT.
Copyright IBM Corporation, 1990, 2005