480 static void felem_square(felem out, const felem in) {  in felem_square()  function
615   felem_square(ftmp, in); /* 2^1 */  in felem_inv()
618   felem_square(ftmp, ftmp); /* 2^3 - 2^1 */  in felem_inv()
619   felem_square(ftmp, ftmp); /* 2^4 - 2^2 */  in felem_inv()
622   felem_square(ftmp, ftmp); /* 2^5 - 2^1 */  in felem_inv()
623   felem_square(ftmp, ftmp); /* 2^6 - 2^2 */  in felem_inv()
624   felem_square(ftmp, ftmp); /* 2^7 - 2^3 */  in felem_inv()
625   felem_square(ftmp, ftmp); /* 2^8 - 2^4 */  in felem_inv()
629     felem_square(ftmp, ftmp);  in felem_inv()
634     felem_square(ftmp, ftmp);  in felem_inv()
639     felem_square(ftmp, ftmp);  in felem_inv()
644     felem_square(ftmp, ftmp);  in felem_inv()
649     felem_square(ftmp2, ftmp2);  in felem_inv()
653     felem_square(ftmp2, ftmp2);  in felem_inv()
657     felem_square(ftmp2, ftmp2);  in felem_inv()
660   felem_square(ftmp2, ftmp2); /* 2^93 - 2^1 */  in felem_inv()
661   felem_square(ftmp2, ftmp2); /* 2^94 - 2^2 */  in felem_inv()
663   felem_square(ftmp2, ftmp2); /* 2^95 - 2^1 */  in felem_inv()
664   felem_square(ftmp2, ftmp2); /* 2^96 - 2^2 */  in felem_inv()
808   felem_square(delta, z);  in point_double()
809   felem_square(gamma, y);  in point_double()
818   felem_square(tmp, tmp);  in point_double()
823   felem_square(x_out, alpha);  in point_double()
829   felem_square(tmp2, gamma);  in point_double()
846   felem_square(z1z1, z1);  in point_add_mixed()
854   felem_square(i, i);  in point_add_mixed()
861   felem_square(rr, r);  in point_add_mixed()
884   felem_square(z1z1, z1);  in point_add()
885   felem_square(z2z2, z2);  in point_add()
889   felem_square(tmp, tmp);  in point_add()
901   felem_square(i, i);  in point_add()
908   felem_square(rr, r);  in point_add()
932   felem_square(z1z1, z1);  in point_add_or_double_vartime()
933   felem_square(z2z2, z2);  in point_add_or_double_vartime()
937   felem_square(tmp, tmp);  in point_add_or_double_vartime()
950   felem_square(i, i);  in point_add_or_double_vartime()
962   felem_square(rr, r);  in point_add_or_double_vartime()
1107   felem_square(z_inv_sq, z_inv);  in point_to_affine()