BMPBK

Prolog  

Control Block Contents  
   BMPBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

BMPBK Prolog

 NAME       : HCPBMPBK
 DESCRIPTION: Bit map control block
 DSECT      : BMPBK
 FUNCTION   : HCPBMPBK 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 bitmaps.
 LOCATED BY : VDUGPAGM, VDULPAGM
 CREATED BY : HCPVMR - Range processing routines
 DELETED BY : HCPVDC - VMDUMP clean-up module
 REFERENCES : None
 COMMENTS   : None

BMPBK Control Block Content

BMPBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      BMPBK          Bit map control block
0000    0 Signed       4 BMPSTOR        Storage size mapped by BMPBK
0004    4 Address      4 BMPMETA (16)   System virtual addresses of each
                                        bitmap page.
0044   68 Bitstring    1 BMP$END (0)    Defines end of control blk

BMPBK Storage Layout

          
*** BMPBK - Bit map control block
*
*     +---------------------------+---------------------------+
*   0 |         BMPSTOR           |                           |
*     +---------------------------+                           |
*   8 |                                                       |
*     =                       BMPMETA                         =
*     |                           +---------------------------+
*     |                           |
*     +---------------------------+
*
*** BMPBK - Bit map control block

BMPBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
BMP$END        0044
BMPMETA        0004
BMPSTOR        0000