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.

LIBSECT

Prolog  

Control Block Contents  

LIBSECT DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)   

LIBSECT Prolog

 Name       : LIB
 Description: CMS PDS Header
 DSECT      : LIBSECT
 Function   : LIBSECT keeps track of the total library size
              and the address of the CMS PDS directory.
 

LIBSECT Control Block Content



LIBSECT DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      LIBSECT        CMS PDS Header
0000    0 Character    6 LIBIDENT       CMS PDS LIB IDENTIFIER
0006    6 Signed       2 *              RESERVED
0008    8 Signed       4 LIBDIRSZ       TOTAL DIRECTORY SIZE IN BYTES
000C   12 Signed       4 LIBDIR         DIRECTORY ADDRESS AS FULLWORD
                                        EXTENDED ITEM NO.
0010   16 Bitstring   64 *              RESERVED
          00000050       LIBIDSIZ       *-LIBSECT LENGTH OF PDS
                                        IDENTIFIER
     MAPPING OF SCP FORMAT HEADER ENTRY
          00000006       LIBDIRX        LIBSECT+6,2 SCP HALFWORD DIR.
                                        ITEM NO.
 

LIBSECT Storage Layout

*** LIBSECT - CMS PDS Header
*
*     +-----------------------------------------+-------------+
*   0 |                LIBIDENT                 |/////////////|
*     +---------------------------+-------------+-------------+
*   8 |         LIBDIRSZ          |          LIBDIR           |
*     +---------------------------+---------------------------+
*  10 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  50
*
*** LIBSECT - CMS PDS Header
 

LIBSECT Cross Reference

(contains links to field and bit definitions)
Symbol         Dspl Value
-------------- ---- -----

LIBDIR         000C

LIBDIRSZ       0008

LIBDIRX        0010 00000006

LIBIDENT       0000

LIBIDSIZ       0010 00000050
This information is based on VM/ESA 2.4.0.
Last updated on 12 Aug 1999 at 11:22:52 EDT.
Copyright IBM Corporation, 1990, 1999