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.

OPCTB

Prolog  

Control Block Contents  

OPCTB DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

OPCTB Prolog

 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


OPCTB DSECT

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' Integrated console indicator 00000005 OPCLEN *-OPCTB Length of one entry 00000005 OPCNEXT * Next device number in list

 

OPCTB Storage Layout

*** OPCTB - OPERATOR CONSOLE DEVICE NUMBER TABLE
*
*     +---------------------------+------+
*   0 |         OPCDEVNO          |:FLAG | 5
*     +---------------------------+------+
*
*** OPCTB - OPERATOR CONSOLE DEVICE NUMBER TABLE

 

OPCTB Cross Reference

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

OPCDEVNO 0000

OPCFLAG 0004

OPCIC 0004 80

OPCLEN 0004 00000005

OPCNEXT 0004 00000005


This information is based on VM/ESA 2.4.0.
Last updated on 3 Aug 1999 at 12:18:20 EDT.
Copyright IBM Corporation, 1990, 1999