s64vector_sub    4088 ext/uvector/uvector.c     s64vector_sub("s64vector-sub", d, SCM_OBJ(s0), s1, clamp);
s64vector_sub    4094 ext/uvector/uvector.c     s64vector_sub("s64vector-sub!", SCM_OBJ(s0), SCM_OBJ(s0), s1, clamp);