CHGBK | Back to Index page

| Prolog Control Block Contents CHGBK 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.

CHGBK Prolog | Top of page

     NAME       : HCPCHGBK
     DESCRIPTION: External Symbol Dictionary Change Block
     DSECT      : CHGBK
     FUNCTION   : Remember the changes requested during CPXLOAD command
                  indicated by the LKED directive CHANGE
     LOCATED BY : LABK.LABCHQ
                  CHGBK.CHGFWD
     CREATED BY : HCPCLO while processing CPXLOAD command
     DELETED BY : HCPCLO while processing CPXLOAD command
     SERIALIZED : None.
     RELOCATION CONSIDERATIONS : None

CHGBK Control Block Content | Top of page

     CHGBK DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      CHGBK          External Symbol Dictionary Change Block
    0000    0 Address      4 CHGFWD         A( next CHGBK )
    0004    4 Signed       4 *              Reserved for future IBM use
    0008    8 Character    8 CHGOLDNM       The ESD name to be changed
    0010   16 Character    8 CHGNEWNM       Changed to this. If this field
                                            starts with the first byte x'00',
                                            then we mean that the ESD is to
                                            be deleted
    0018   24 Dbl-Word     8 CHG$END (0)    The end

CHGBK Storage Layout | Top of page

    *** CHGBK - External Symbol Dictionary Change Block
    *
    *     +---------------------------+---------------------------+
    *   0 |          CHGFWD           |///////////////////////////|
    *     +---------------------------+---------------------------+
    *   8 |                       CHGOLDNM                        |
    *     +-------------------------------------------------------+
    *  10 |                       CHGNEWNM                        |
    *     +-------------------------------------------------------+
    *
    *** CHGBK - External Symbol Dictionary Change Block

CHGBK Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    CHG$END        0018
    CHGFWD         0000
    CHGNEWNM       0010
    CHGOLDNM       0008

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:27:15 EDT.
Copyright IBM Corporation, 1990, 2020