Programming Interface Information: This information is NOT intended to be
used as Programming Interfaces of VM/ESA. It is to be used for diagnosis only.

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

(contains links to field and bit definitions)
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 VM/ESA 2.4.0.
Last updated on 18 Aug 1999 at 09:19:05 EDT.
Copyright IBM Corporation, 1990, 1999