LIBSECT Back to Index page
 
Prolog 
Control Block Contents 
   LIBSECT 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.


  LIBSECT Prolog Top of page
  
 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 Top of page
  




 LIBSECT DSECT
Top of page


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 Top of page
  
          
*** LIBSECT - CMS PDS Header
*
*     +-----------------------------------------+-------------+
*   0 |                LIBIDENT                 |/////////////|
*     +---------------------------+-------------+-------------+
*   8 |         LIBDIRSZ          |          LIBDIR           |
*     +---------------------------+---------------------------+
*  10 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  50
*
*** LIBSECT - CMS PDS Header
 
 
  LIBSECT Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
LIBDIR         000C
LIBDIRSZ       0008
LIBDIRX        0010 00000006
LIBIDENT       0000
LIBIDSIZ       0010 00000050
 
This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:36:33 EDT.
Copyright IBM Corporation, 1990, 2020