Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

#### CDBOVL

Prolog

Control Block Contents
CDBOVL DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### CDBOVL Prolog

     NAME       : DMSCDB
     DESCRIPTION: COMDIR CONTROL BLOCK
     DSECT      : CDBOVL
     FUNCTION   : COMDIR Info Overlay

#### CDBOVL Control Block Content

#### CDBOVL DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      CDBOVL         COMDIR CONTROL BLOCK
    0000    0 Character   18 CDBFID         filespec
    0000    0 Character    8 CDBFN          file name
    0008    8 Character    8 CDBFT          file type
    0010   16 Character    2 CDBFM          file mode
    0012   18 Character    1 CDBFLG         flag byte
    0013   19 Character    1 *
    0014   20 Address      4 CDBBLK         ptr to NAMEFxxx SCBLOCK equates
                                            for mapping the flag bytes for
                                            CDBFLG,CDBSFLG,CDBUFLG
              1... ....      CDBSSTAT       X'80' system comdir status
              .1.. ....      CDBSMOD        X'40' system model usage
              ..1. ....      CDBSSPEC       X'20' system file id specified
              ...1 ....      CDBSLOAD       X'10' system file id loaded
              1... ....      CDBUSTAT       X'80' user comdir status
              .1.. ....      CDBUMOD        X'40' user model usage
              ..1. ....      CDBUSPEC       X'20' user file id specified
              ...1 ....      CDBULOAD       X'10' user file id loaded
              1... ....      CDBSTAT        X'80' comdir on/off
              .1.. ....      CDBMODEL       X'40' model usage static-0
                                            dynamic-1
              ..1. ....      CDBSPEC        X'20' file id specified
              ...1 ....      CDBLOAD        X'10' file id loaded

#### CDBOVL Storage Layout

    *** CDBOVL - COMDIR CONTROL BLOCK
    *
    *     +-------------------------------------------------------+
    *   0 |                                                       |
    *     =                        CDBFID                         =
    *     |             +-----------------------------------------+
    *     |             | 12
    *     +-------------+
    *
    *** CDBOVL - COMDIR CONTROL BLOCK

    *** Overlay for CDBFID in CDBOVL
    *
    *     +-------------------------------------------------------+
    *   0 |                        CDBFN                          |
    *     +-------------------------------------------------------+
    *   8 |                        CDBFT                          |
    *     +-------------+------+------+---------------------------+
    *  10 |   CDBFM     |CDBFLG|//////|          CDBBLK           |
    *     +-------------+------+------+---------------------------+
    *  18
    *
    *** Overlay for CDBFID in CDBOVL

#### CDBOVL Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    CDBBLK         0014
    CDBFID         0000
    CDBFLG         0012
    CDBFM          0010
    CDBFN          0000
    CDBFT          0008
    CDBLOAD        0014 10
    CDBMODEL       0014 40
    CDBSLOAD       0014 10
    CDBSMOD        0014 40
    CDBSPEC        0014 20
    CDBSSPEC       0014 20
    CDBSSTAT       0014 80
    CDBSTAT        0014 80
    CDBULOAD       0014 10
    CDBUMOD        0014 40
    CDBUSPEC       0014 20
    CDBUSTAT       0014 80

This information is based on z/VM V5R2.0.
Last updated on 6 Dec 2005 at 15:38:18 EDT.
Copyright IBM Corporation, 1990, 2005