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