1/*
2 * Copyright 2017-2022 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2016 Cryptography Research, Inc.
4 *
5 * Licensed under the Apache License 2.0 (the "License").  You may not use
6 * this file except in compliance with the License.  You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
9 *
10 * Originally written by Mike Hamburg
11 */
12
13#ifndef OSSL_CRYPTO_EC_CURVE448_ARCH_64_INTRINSICS_H
14# define OSSL_CRYPTO_EC_CURVE448_ARCH_64_INTRINSICS_H
15
16# include "internal/constant_time.h"
17
18# define ARCH_WORD_BITS 64
19
20# define word_is_zero(a)     constant_time_is_zero_64(a)
21
22static ossl_inline uint128_t widemul(uint64_t a, uint64_t b)
23{
24    return ((uint128_t) a) * b;
25}
26
27#endif                          /* OSSL_CRYPTO_EC_CURVE448_ARCH_64_INTRINSICS_H */
28