__ll_lowpart
__ul = __ll_lowpart (u); \
__vl = __ll_lowpart (v); \
(w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
__d0 = __ll_lowpart (d); \
__r0 = __r0 * __ll_B | __ll_lowpart (n0); \