ULONG
FASTCALL
MiIsPteDecommittedPage(
  IN  PMMPTE PointerPte
  );

Routine Description:

    This function checks the contents of a PTE to determine if the
    PTE is explicitly decommitted.

    If the PTE is a prototype PTE and the protection is not in the
    prototype PTE, the value FALSE is returned.

Arguments:

    PointerPte - Supplies a pointer to the PTE to examine.

Return Value:

    TRUE if the PTE is in the explicit decommitted state.
    FALSE if the PTE is not in the explicit decommitted state.

Environment:

    Kernel mode, APCs disabled, WorkingSetLock held.