191   unsigned int t1[32];  in recip()  local
195   /* 4 */ square(t1,z2);  in recip()
196   /* 8 */ square(t0,t1);  in recip()
203   /* 2^7 - 2^2 */ square(t1,t0);  in recip()
204   /* 2^8 - 2^3 */ square(t0,t1);  in recip()
205   /* 2^9 - 2^4 */ square(t1,t0);  in recip()
206   /* 2^10 - 2^5 */ square(t0,t1);  in recip()
210   /* 2^12 - 2^2 */ square(t1,t0);  in recip()
211   /* 2^20 - 2^10 */ for (i = 2;i < 10;i += 2) { square(t0,t1); square(t1,t0); }  in recip()
212   /* 2^20 - 2^0 */ mult(z2_20_0,t1,z2_10_0);  in recip()
215   /* 2^22 - 2^2 */ square(t1,t0);  in recip()
216   /* 2^40 - 2^20 */ for (i = 2;i < 20;i += 2) { square(t0,t1); square(t1,t0); }  in recip()
217   /* 2^40 - 2^0 */ mult(t0,t1,z2_20_0);  in recip()
219   /* 2^41 - 2^1 */ square(t1,t0);  in recip()
220   /* 2^42 - 2^2 */ square(t0,t1);  in recip()
221   /* 2^50 - 2^10 */ for (i = 2;i < 10;i += 2) { square(t1,t0); square(t0,t1); }  in recip()
225   /* 2^52 - 2^2 */ square(t1,t0);  in recip()
226   /* 2^100 - 2^50 */ for (i = 2;i < 50;i += 2) { square(t0,t1); square(t1,t0); }  in recip()
227   /* 2^100 - 2^0 */ mult(z2_100_0,t1,z2_50_0);  in recip()
229   /* 2^101 - 2^1 */ square(t1,z2_100_0);  in recip()
230   /* 2^102 - 2^2 */ square(t0,t1);  in recip()
231   /* 2^200 - 2^100 */ for (i = 2;i < 100;i += 2) { square(t1,t0); square(t0,t1); }  in recip()
232   /* 2^200 - 2^0 */ mult(t1,t0,z2_100_0);  in recip()
234   /* 2^201 - 2^1 */ square(t0,t1);  in recip()
235   /* 2^202 - 2^2 */ square(t1,t0);  in recip()
236   /* 2^250 - 2^50 */ for (i = 2;i < 50;i += 2) { square(t0,t1); square(t1,t0); }  in recip()
237   /* 2^250 - 2^0 */ mult(t0,t1,z2_50_0);  in recip()
239   /* 2^251 - 2^1 */ square(t1,t0);  in recip()
240   /* 2^252 - 2^2 */ square(t0,t1);  in recip()
241   /* 2^253 - 2^3 */ square(t1,t0);  in recip()
242   /* 2^254 - 2^4 */ square(t0,t1);  in recip()
243   /* 2^255 - 2^5 */ square(t1,t0);  in recip()
244   /* 2^255 - 21 */ mult(out,t1,z11);  in recip()