BMGBK Back to Index page
 
Prolog 
Control Block Contents 
   BMGBK 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.


  BMGBK Prolog Top of page
  
 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
 RELOCATION CONSIDERATIONS : None
 COMMENTS   : None
 
 
  BMGBK Control Block Content Top of page
  




 BMGBK DSECT
Top of page


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 Top of page
  
          
*** BMGBK - Bit map control block (z/architecture mode)
*
*     +-------------------------------------------------------+
*   0 |                       BMGSTOR                         |
*     +-------------------------------------------------------+
*   8 |                       BMGMETA                         |
*     |                                                       |
*     +-------------------------------------------------------+
*
*** BMGBK - Bit map control block (z/architecture mode)
 
 
  BMGBK Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
BMG$END        0018
BMGMETA        0008
BMGSTOR        0000
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:47:45 EDT.
Copyright IBM Corporation, 1990, 2022