PUBADR Back to Index page
 
Prolog 
Control Block Contents 
   PUBADR 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.


  PUBADR Prolog Top of page
  
 NAME       : PUBTAB
 DESCRIPTION: Physical Unit Block Table
 DSECT      : PUBADR
 FUNCTION   : PUBADR defines the fields of a
              physical unit block table as used by CMS and
              VSE or both routines. Both DSECTs define the
              same storage. For CMS routines the simulated
              PUBADR DSECT has eighteen 8-byte entries, one
              for each device supported by CMS. The simulated
              PUBADR DSECT is described by the PUBTAB macro.
 
 
  PUBADR Control Block Content Top of page
  




 PUBADR DSECT
Top of page


Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      PUBADR         Physical Unit Block Table
0000    0 Bitstring    2 PUBCHANN       . CHANNEL AND DEVICE NUMBER
0002    2 Bitstring    1 PUBCHQPT       . CHQ. NO. OF FIRST REQUEST FOR
                                        PUB
0003    3 Bitstring    1 PUBERR         . ERROR RETRY COUNTER OR TEB
                                        POINTER
0004    4 Bitstring    1 PUBDEVTY       . DEVICE TYPE CODE
0005    5 Bitstring    1 PUBOPTN        . SET MODE COMMAND OR OTHER
                                        OPTIONS
0006    6 Bitstring    1 PUBCSFLG       . CHANNEL SCHEDULER FLAGS
0007    7 Bitstring    1 PUBJCFLG       . JOB CONTROL FLAGS
0008    8 Bitstring    1 NEXTPUB        . FIRST BYTE OF NEXT PUB ENTRY
          00000009       PUBWIT         *-PUBADR . LENGTH OF PUB TABLE
          00000008       PUBPTR         NEXTPUB . POINTER TO ORIG. PUB
 
 
  PUBADR Storage Layout Top of page
  
          
*** PUBADR - Physical Unit Block Table
*
*     +-------------+------+------+------+------+------+------+
*   0 |  PUBCHANN   |:CHQPT|PUBERR|:DEVTY|:OPTN |:CSFLG|:JCFLG|
*     +------+------+------+------+------+------+------+------+
*   8 |:TPUB | 9
*     +------+
*
*** PUBADR - Physical Unit Block Table
 
 
  PUBADR Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
NEXTPUB        0008
PUBCHANN       0000
PUBCHQPT       0002
PUBCSFLG       0006
PUBDEVTY       0004
PUBERR         0003
PUBJCFLG       0007
PUBOPTN        0005
PUBPTR         0008 00000008
PUBWIT         0008 00000009
 
This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:36:38 EDT.
Copyright IBM Corporation, 1990, 2020