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Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM. |
ARSDT
Control Block Contents
ARSDT DSECT
Cross Reference (Contains links to field and bit definitions)
ARSDT Prolog
Name : HCPARSDT
Description: Access Real Subsystem Data Area
DSECT : ARSDT
Function : Map resident data area for Diagnose X'254'
in entry point HCPIOD25.
Located by : Acon ADDR of HCPIOD25
Created by : none
Deleted by : none
ARSDT Control Block Content
ARSDT DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ARSDT Access Real Subsystem Data Area 0000 0 Dbl-Word 8 ARSLOCKW (3) Access Real Subsystem lockword 0018 24 Address 4 ARSVDEVA Address of 1st "pseudo" Vdev 001C 28 Address 4 ARSUSQUE Address of linked list containing users unsolicited status ARUBKs 0020 32 Address 4 ARSMSQUE Address of linked list containing ARMGEs from closed connections 0024 36 Bitstring 12 * Reserved 00000030 ARSDTBYL *-ARSDT Byte length of ARSDT 00000006 ARSDTDSZ ((ARSDTBYL+7)/8) Doubleword length of ARSDT
ARSDT Storage Layout
*** ARSDT - Access Real Subsystem Data Area
*
* +-------------------------------------------------------+
* 0 | |
* = ARSLOCKW =
* | |
* +---------------------------+---------------------------+
* 18 | ARSVDEVA | ARSUSQUE |
* +---------------------------+---------------------------+
* 20 | ARSMSQUE |///////////////////////////|
* +---------------------------+///////////////////////////|
* |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* 30
*
*** ARSDT - Access Real Subsystem Data Area
ARSDT Cross Reference
Symbol Dspl Value -------------- ---- ----- ARSDTBYL 0024 00000030 ARSDTDSZ 0024 00000006 ARSLOCKW 0000 ARSMSQUE 0020 ARSUSQUE 001C ARSVDEVA 0018
Last updated on 5 Jun 2001 at 12:55:15 EDT.
Copyright IBM Corporation, 1990, 2001