538   p224_felem ftmp, ftmp2, ftmp3, ftmp4;  in p224_felem_inv()  local
550   p224_felem_reduce(ftmp2, tmp); /* 2^4 - 2 */  in p224_felem_inv()
551   p224_felem_square(tmp, ftmp2);  in p224_felem_inv()
552   p224_felem_reduce(ftmp2, tmp); /* 2^5 - 4 */  in p224_felem_inv()
553   p224_felem_square(tmp, ftmp2);  in p224_felem_inv()
554   p224_felem_reduce(ftmp2, tmp); /* 2^6 - 8 */  in p224_felem_inv()
555   p224_felem_mul(tmp, ftmp2, ftmp);  in p224_felem_inv()
558   p224_felem_reduce(ftmp2, tmp); /* 2^7 - 2 */  in p224_felem_inv()
560     p224_felem_square(tmp, ftmp2);  in p224_felem_inv()
561     p224_felem_reduce(ftmp2, tmp);  in p224_felem_inv()
563   p224_felem_mul(tmp, ftmp2, ftmp);  in p224_felem_inv()
564   p224_felem_reduce(ftmp2, tmp); /* 2^12 - 1 */  in p224_felem_inv()
565   p224_felem_square(tmp, ftmp2);  in p224_felem_inv()
571   p224_felem_mul(tmp, ftmp3, ftmp2);  in p224_felem_inv()
572   p224_felem_reduce(ftmp2, tmp); /* 2^24 - 1 */  in p224_felem_inv()
573   p224_felem_square(tmp, ftmp2);  in p224_felem_inv()
579   p224_felem_mul(tmp, ftmp3, ftmp2);  in p224_felem_inv()
595   p224_felem_mul(tmp, ftmp2, ftmp4);  in p224_felem_inv()
596   p224_felem_reduce(ftmp2, tmp); /* 2^120 - 1 */  in p224_felem_inv()
598     p224_felem_square(tmp, ftmp2);  in p224_felem_inv()
599     p224_felem_reduce(ftmp2, tmp);  in p224_felem_inv()
601   p224_felem_mul(tmp, ftmp2, ftmp);  in p224_felem_inv()
645   p224_felem delta, gamma, beta, alpha, ftmp, ftmp2;  in p224_point_double()  local
648   p224_felem_assign(ftmp2, x_in);  in p224_point_double()
665   p224_felem_sum(ftmp2, delta);  in p224_point_double()
667   p224_felem_scalar(ftmp2, 3);  in p224_point_double()
669   p224_felem_mul(tmp, ftmp, ftmp2);  in p224_point_double()
731   p224_felem ftmp, ftmp2, ftmp3, ftmp4, ftmp5, x_out, y_out, z_out;  in p224_point_add()  local
738     p224_felem_reduce(ftmp2, tmp);  in p224_point_add()
741     p224_felem_mul(tmp, ftmp2, z2);  in p224_point_add()
749     p224_felem_mul(tmp2, ftmp2, x1);  in p224_point_add()
750     p224_felem_reduce(ftmp2, tmp2);  in p224_point_add()
758     p224_felem_assign(ftmp2, x1);  in p224_point_add()
783   p224_felem_diff_128_64(tmp, ftmp2);  in p224_point_add()
822   p224_felem_mul(tmp, ftmp2, ftmp);  in p224_point_add()
823   p224_felem_reduce(ftmp2, tmp);  in p224_point_add()
838   p224_felem_assign(ftmp5, ftmp2);  in p224_point_add()
849   p224_felem_diff(ftmp2, x_out);  in p224_point_add()
853   p224_felem_mul(tmp2, ftmp3, ftmp2);  in p224_point_add()