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
    Top of page

    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 7.2.0 Last updated on 24 Jun 2020 at 09:29:48 EDT.
Copyright IBM Corporation, 1990, 2020