_PAGE_PRESENT_SHIFT
#define _PAGE_PRESENT_SHIFT 7
#define _PAGE_PRESENT_SHIFT 7
_PAGE_PRESENT_SHIFT,
_PAGE_PRESENT_SHIFT,
_PAGE_PRESENT_SHIFT = 24,
_PAGE_PRESENT_SHIFT = _CACHE_SHIFT + 3,
#define _PAGE_PRESENT_SHIFT 7