s64vector_add    3318 ext/uvector/uvector.c     s64vector_add("s64vector-add", d, SCM_OBJ(s0), s1, clamp);
s64vector_add    3324 ext/uvector/uvector.c     s64vector_add("s64vector-add!", SCM_OBJ(s0), SCM_OBJ(s0), s1, clamp);