_PAGE_BIT_PAT
((((cb) >> (_PAGE_BIT_PAT - 2)) & 4) | \
((((i) & 4) << (_PAGE_BIT_PAT - 2)) | \
((val & _PAGE_PAT) << (_PAGE_BIT_PAT_LARGE - _PAGE_BIT_PAT));
(_PAGE_BIT_PAT_LARGE - _PAGE_BIT_PAT));
#define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT)