CBIBK | Back to Index page

| Prolog Control Block Contents CBIBK 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.

CBIBK Prolog | Top of page

     NAME       : HCPCBIBK
     DESCRIPTION: Control Block Identifiers and Lengths
                  Mapping
     DSECT      : CBIBK
     FUNCTION   : Provides a map for a control block's
                  information in the HCPCBI table.
     LOCATED BY : The location of HCPCBI and the offset into
                  HCPCBI provided by the HCPGETST and HCPRELST
                  macros
     CREATED BY : This block is never created. It is used to map
                  portions of the HCPCBI data area
     DELETED BY : Never deleted
     SERIALIZED : None (HCPCBI is only changed at
                  initialization)
     RELOCATION CONSIDERATIONS : None

CBIBK Control Block Content | Top of page

     CBIBK DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      CBIBK          Control Block Identifiers and Lengths
    0000    0 Character    4 CBID           The block's identifier,
                                            '<XXX'. Where 'XXX' is unique
                                            to each block and the whole ID is
                                            '<<<<' for undefined
                                            blocks.
    0004    4 Signed       4 CBIDSIZE       The block's length in
                                            doublewords. This field is 0 if
                                            the block is a variable length or
                                            undefined block.
    0008    8 Signed       4 CBISUBBK       Address of associated SUBBK above
                                            2G
    000C   12 Signed       4 CBISBB2G       Address of associated SUBBK below
                                            2G
              00000010       CBIBSIZE       *-CBIBK Length of the CBIBK in
                                            bytes
              00000002       CBISIZE        (*-CBIBK+7)/8 Length of the CBIBK
                                            in doublewords

CBIBK Storage Layout | Top of page

    *** CBIBK - Control Block Identifiers and Lengths
    *
    *     +---------------------------+---------------------------+
    *   0 |           CBID            |         CBIDSIZE          |
    *     +---------------------------+---------------------------+
    *   8 |         CBISUBBK          |         CBISBB2G          |
    *     +---------------------------+---------------------------+
    *  10
    *
    *** CBIBK - Control Block Identifiers and Lengths

CBIBK Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    CBIBSIZE       000C 00000010
    CBID           0000
    CBIDSIZE       0004
    CBISBB2G       000C
    CBISIZE        000C 00000002
    CBISUBBK       0008

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:27:12 EDT.
Copyright IBM Corporation, 1990, 2020