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.

CASBK

Prolog  

Control Block Contents  

CASBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

CASBK Prolog

 Name       : HCPVEXBK
 Description: Map Contiguous Available Slots
 DSECT      : CASBK
 Notes      :
              The following describes a CASBK - group of contiguous
              available slots in the current extent.  They are
              located in VEXSPACA or VEXPGACA.

 

CASBK Control Block Content


CASBK DSECT

Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure CASBK Map Contiguous Available Slots 0000 0 Bitstring 1 CASLEN Number of slots 0001 1 Bitstring 1 CASNXT Pointer to next CASBK 0002 2 Signed 2 CASLOC Starting slot 00000004 CASSZ (*-CASBK) Size of one CASBK 00000010 CASNUM 16 Number of CASBKs in VEXSPACA or VEXPGACA.

 

CASBK Storage Layout

*** CASBK - Map Contiguous Available Slots
*
*     +------+------+-------------+
*   0 |CASLEN|CASNXT|   CASLOC    | 4
*     +------+------+-------------+
*
*** CASBK - Map Contiguous Available Slots

 

CASBK Cross Reference

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

CASLEN 0000

CASLOC 0002

CASNUM 0002 00000010

CASNXT 0001

CASSZ 0002 00000004


This information is based on VM/ESA 2.4.0.
Last updated on 3 Aug 1999 at 13:44:56 EDT.
Copyright IBM Corporation, 1990, 1999