fpu_itof
s = fpu_itof(fp, s);
static int fpu_itof(struct fpn *fp, uint32_t i);
class = fpu_itof(fp, lo);
static int fpu_itof(struct fpn *, u_int);
s = fpu_itof(fp, s);
int fpu_itof(struct fpn *, u_int);