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

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

Symbol         Dspl Value
-------------- ---- -----
LIBDIR         000C
LIBDIRSZ       0008
LIBDIRX        0010 00000006
LIBIDENT       0000
LIBIDSIZ       0010 00000050
This information is based on z/VM V4R2.0.
Last updated on 18 Oct 2001 at 11:26:28 EDT.
Copyright IBM Corporation, 1990, 2001