CASBK Back to Index page
 
Prolog 
Control Block Contents 
   CASBK 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.


  CASBK Prolog Top of page
 
 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 Top of page
 

 CASBK DSECT Top of page
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 Top of page
 
          
*** CASBK - Map Contiguous Available Slots
*
*     +------+------+-------------+
*   0 |CASLEN|CASNXT|   CASLOC    | 4
*     +------+------+-------------+
*
*** CASBK - Map Contiguous Available Slots
 
 
  CASBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
CASLEN         0000
CASLOC         0002
CASNUM         0002 00000010
CASNXT         0001
CASSZ          0002 00000004
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:57:41 EDT.
Copyright IBM Corporation, 1990, 2022