29   mp_size_t usize, vsize, rsize;  in mpf_ui_sub()  local
37   vsize = v->_mp_size;  in mpf_ui_sub()
45   if (vsize == 0)  in mpf_ui_sub()
52   if (vsize < 0)  in mpf_ui_sub()
55       v_negated._mp_size = -vsize;  in mpf_ui_sub()
71       usize = ABS (vsize);  in mpf_ui_sub()
72       vsize = 1;  in mpf_ui_sub()
84       vsize = ABS (vsize);  in mpf_ui_sub()
101 	  vsize--;  in mpf_ui_sub()
102 	  if (up[usize] != vp[vsize])  in mpf_ui_sub()
107 	  if (vsize == 0)  in mpf_ui_sub()
111       vsize++;  in mpf_ui_sub()
116       if (vsize == 0)  in mpf_ui_sub()
122 	while (vsize != 0 && vp[vsize - 1] == 0)  in mpf_ui_sub()
123 	  vsize--, uexp--;  in mpf_ui_sub()
135   if (vsize + ediff > prec)  in mpf_ui_sub()
137       vp += vsize + ediff - prec;  in mpf_ui_sub()
138       vsize = prec - ediff;  in mpf_ui_sub()
158 	  if (vsize == 0)  in mpf_ui_sub()
166 	  vp++, vsize--;  in mpf_ui_sub()
172 	      MPN_COPY (rp, vp, vsize);  in mpf_ui_sub()
173 	      rsize = vsize;  in mpf_ui_sub()
192 	      if (usize > vsize)  in mpf_ui_sub()
197 		  cmp = mpn_cmp (up + usize - vsize, vp, vsize);  in mpf_ui_sub()
201 		      size = usize - vsize;  in mpf_ui_sub()
203 		      mpn_sub_n (tp + size, up + size, vp, vsize);  in mpf_ui_sub()
211 		      size = usize - vsize;  in mpf_ui_sub()
215 		      mpn_sub_n (tp + size, vp, up + size, vsize);  in mpf_ui_sub()
216 		      mpn_sub_1 (tp + size, tp + size, vsize, (mp_limb_t) 1);  in mpf_ui_sub()
221 	      else if (usize < vsize)  in mpf_ui_sub()
226 		  cmp = mpn_cmp (up, vp + vsize - usize, usize);  in mpf_ui_sub()
230 		      size = vsize - usize;  in mpf_ui_sub()
236 		      rsize = vsize;  in mpf_ui_sub()
244 		      size = vsize - usize;  in mpf_ui_sub()
248 		      rsize = vsize;  in mpf_ui_sub()
256 		  cmp = mpn_cmp (up, vp + vsize - usize, usize);  in mpf_ui_sub()
273 	      if (vsize + ediff <= usize)  in mpf_ui_sub()
278 		  size = usize - ediff - vsize;  in mpf_ui_sub()
280 		  mpn_sub (tp + size, up + size, usize - size, vp, vsize);  in mpf_ui_sub()
288 		  size = vsize + ediff - usize;  in mpf_ui_sub()
294 		  rsize = vsize + ediff;  in mpf_ui_sub()
303 	  size = vsize + ediff - usize;  in mpf_ui_sub()
305 	  for (i = 1; i < vsize; i++)  in mpf_ui_sub()
307 	  for (i = vsize; i < size; i++)  in mpf_ui_sub()