OPCTB Back to Index page
 
Prolog 
Control Block Contents 
   OPCTB 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.


  OPCTB Prolog Top of page
 
 NAME       : HCPOPCTB
 DESCRIPTION: OPERATOR CONSOLE DEVICE NUMBER TABLE
 DSECT      : OPCTB
 FUNCTION   : CONTAINS THE DEVICE NUMBERS OF THE OPERATORS PRIMARY
              AND ALTERNATE CONSOLES.
 LOCATED BY : SYSRIOPC is the pointer to the list of potential
              devices to become the operator's console
      SYSRIOPC ---> +-------+
                    | devno | primary console
                    +-------+
                    | devno | alternate console
                    +-------+
                    | devno | alternate console
                    +-------+
                    |   .   |
                    +-------+
                    |FFFFFFF| end of table
                    +-------+
 CREATED BY : OPCTB is initially part of the system nucleus
              created by the sysgen process.  During system
              initialization, a new OPCTB may be created in
              gotten storage.
 DELETED BY : OPCTB IS PART OF THE SYSTEM NUCLEUS AND NEVER DELETED.
 
 
  OPCTB Control Block Content Top of page
 

 OPCTB DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure OPCTB OPERATOR CONSOLE DEVICE NUMBER TABLE THE FIRST ENTRY IS THE PRIMARY OPERATOR'S CONSOLE, EACH SUCCESSIVE ENTRY IS FOR AN ALTERNATE CONSOLE, THE END OF THE TABLE IS INDICATED BY X'FFFFFFFF'. 0000 0 Signed 4 OPCDEVNO Device number of the terminal to become one of the consoles 0004 4 Bitstring 1 OPCFLAG Device flags 1... .... OPCIC X'80' OPCIC Integrated console indicator .1.. .... OPCICGRF X'40' OPCICGRF Integrated 3270 indicator 00000005 OPCLEN *-OPCTB Length of one entry 00000005 OPCNEXT * Next device number in list
 
 
  OPCTB Storage Layout Top of page
 
 
*** OPCTB - OPERATOR CONSOLE DEVICE NUMBER TABLE
*
*     +---------------------------+------+
*   0 |         OPCDEVNO          |:FLAG | 5
*     +---------------------------+------+
*
*** OPCTB - OPERATOR CONSOLE DEVICE NUMBER TABLE
 
 
  OPCTB Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
OPCDEVNO       0000
OPCFLAG        0004
OPCIC          0004 80
OPCICGRF       0004 40
OPCLEN         0004 00000005
OPCNEXT        0004 00000005
 
This information is based on z/VM 6.4.0 Last updated on 24 Aug 2016 at 09:27:24 EDT.
Copyright IBM Corporation, 1990, 2016