PTABK Back to Index page
 
Prolog 
Control Block Contents 
   PTABK 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.

 
  PTABK Control Block Content Top of page
  




 PTABK DSECT
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Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      PTABK          PTE array block
0000    0 Dbl-Word     8 PTACOUNT       Count of PTE entries in the
                                        array. Index into array.
0008    8 Dbl-Word     8 PTAENTRY (0)   1st PTE entry in the array
0008    8 Dbl-Word     8 * (508)        Up to 508 entries allowed
      End of PTABK
          00000FE8       PTASIZEB       *-PTABK Size of PTABK in bytes
          000001FD       PTASIZED       (PTASIZEB+7)/8 Size of PTABK in
                                        double-words
          000001FB       PTAMAXEN       (PTASIZED-2) Maximum PTE Entry
                                        index. The index is from 0 to 507
          00000008       PTANEXTE       L'PTAENTRY Offset to next PTABK
                                        entry
          000001FC       PTABKMAX       (PTASIZED-1) Maximum number of
                                        entries (508)
 
 
  PTABK Storage Layout Top of page
  
          
*** PTABK - PTE array block
*
*     +-------------------------------------------------------+
*   0 |                       PTACOUNT                        |
*     +-------------------------------------------------------+
*   8 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
* FE8
*
*** PTABK - PTE array block
 
 
  PTABK Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
PTABKMAX       0008 000001FC
PTACOUNT       0000
PTAENTRY       0008
PTAMAXEN       0008 000001FB
PTANEXTE       0008 00000008
PTASIZEB       0008 00000FE8
PTASIZED       0008 000001FD
 
This information is based on z/VM 7.4.0 Last updated on 24 Jun 2024 at 11:33:03 EDT.
Copyright IBM Corporation, 1990, 2024