1120 static void ecc_point_double_jacobian(u64 *x1, u64 *y1, u64 *z1,  in ecc_point_double_jacobian()  argument
1129 	if (vli_is_zero(z1, ndigits))  in ecc_point_double_jacobian()
1138 	/* t2 = y1*z1 = z3 */  in ecc_point_double_jacobian()
1139 	vli_mod_mult_fast(y1, y1, z1, curve);  in ecc_point_double_jacobian()
1140 	/* t3 = z1^2 */  in ecc_point_double_jacobian()
1141 	vli_mod_square_fast(z1, z1, curve);  in ecc_point_double_jacobian()
1143 	/* t1 = x1 + z1^2 */  in ecc_point_double_jacobian()
1144 	vli_mod_add(x1, x1, z1, curve_prime, ndigits);  in ecc_point_double_jacobian()
1145 	/* t3 = 2*z1^2 */  in ecc_point_double_jacobian()
1146 	vli_mod_add(z1, z1, z1, curve_prime, ndigits);  in ecc_point_double_jacobian()
1147 	/* t3 = x1 - z1^2 */  in ecc_point_double_jacobian()
1148 	vli_mod_sub(z1, x1, z1, curve_prime, ndigits);  in ecc_point_double_jacobian()
1149 	/* t1 = x1^2 - z1^4 */  in ecc_point_double_jacobian()
1150 	vli_mod_mult_fast(x1, x1, z1, curve);  in ecc_point_double_jacobian()
1152 	/* t3 = 2*(x1^2 - z1^4) */  in ecc_point_double_jacobian()
1153 	vli_mod_add(z1, x1, x1, curve_prime, ndigits);  in ecc_point_double_jacobian()
1154 	/* t1 = 3*(x1^2 - z1^4) */  in ecc_point_double_jacobian()
1155 	vli_mod_add(x1, x1, z1, curve_prime, ndigits);  in ecc_point_double_jacobian()
1164 	/* t1 = 3/2*(x1^2 - z1^4) = B */  in ecc_point_double_jacobian()
1167 	vli_mod_square_fast(z1, x1, curve);  in ecc_point_double_jacobian()
1169 	vli_mod_sub(z1, z1, t5, curve_prime, ndigits);  in ecc_point_double_jacobian()
1171 	vli_mod_sub(z1, z1, t5, curve_prime, ndigits);  in ecc_point_double_jacobian()
1173 	vli_mod_sub(t5, t5, z1, curve_prime, ndigits);  in ecc_point_double_jacobian()
1179 	vli_set(x1, z1, ndigits);  in ecc_point_double_jacobian()
1180 	vli_set(z1, y1, ndigits);  in ecc_point_double_jacobian()