BMPBK | Back to Index page

| Prolog Control Block Contents BMPBK 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.

BMPBK Prolog | Top of page

     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
     RELOCATION CONSIDERATIONS : None
     COMMENTS   : None

BMPBK Control Block Content | Top of page

     BMPBK DSECT
    Top of page

    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 | Top of page

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

BMPBK Cross Reference | Top of page

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

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:27:09 EDT.
Copyright IBM Corporation, 1990, 2020