BMGBK

Prolog  

Control Block Contents  
   BMGBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

BMGBK Prolog

 NAME       : HCPBMGBK
 DESCRIPTION: Bit map control block (z/architecture mode)
 DSECT      : BMGBK
 FUNCTION   : HCPBMGBK is used to describe the local and
              global bitmaps which are used by VMDUMP.  It
              contains bitmap information and a mapping of
              the meta-map which points to each page of the
              local or global pointer pages, which point
              to the local or global bitmaps.
 LOCATED BY : VDUGPAGM, VDULPAGM
 CREATED BY : HCPVMR - Range processing routines
 DELETED BY : HCPVDC - VMDUMP clean-up module
 REFERENCES : None
 COMMENTS   : None

BMGBK Control Block Content

BMGBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      BMGBK          Bit map control block
                                        (z/architecture mode)
0000    0 Dbl-Word     8 BMGSTOR        Storage size mapped by BMGBK
0008    8 Address      4 BMGMETA (4)    Host logical addresses of each
                                        pointer page.
0018   24 Bitstring    1 BMG$END (0)    Defines end of control blk

BMGBK Storage Layout

          
*** BMGBK - Bit map control block (z/architecture mode)
*
*     +-------------------------------------------------------+
*   0 |                       BMGSTOR                         |
*     +-------------------------------------------------------+
*   8 |                       BMGMETA                         |
*     |                                                       |
*     +-------------------------------------------------------+
*
*** BMGBK - Bit map control block (z/architecture mode)

BMGBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
BMG$END        0018
BMGMETA        0008
BMGSTOR        0000