_NT2DEVPOS
((NMASK(t) << _NT2DEVPOS((t), 0)) & _DEVSET_MASK) : \
(_CMP_DEVSET_MASK << _NT2DEVPOS((t), (u))) : \
(DEVSET_ONEUNIT << _NT2DEVPOS((t), (u))))
(((ds) & DEVSET((t), DEVSET_ANYUNIT)) >> _NT2DEVPOS((t), 0))
(sbd_devset_t)((0xff << _NT2DEVPOS((t), 0)) & _DEVSET_MASK) : \
(sbd_devset_t)(_CMP_DEVSET_MASK << _NT2DEVPOS((t), (u))) : \
(sbd_devset_t)(1 << _NT2DEVPOS((t), (u)))))
(((ds) & DEVSET((t), DEVSET_ANYUNIT)) >> _NT2DEVPOS((t), 0))