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/*
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Copyright (c) 2018 tevador
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This file is part of RandomX.
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RandomX is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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RandomX is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with RandomX. If not, see<http://www.gnu.org/licenses/>.
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*/
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/* Original code from Argon2 reference source code package used under CC0 Licence
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* https://github.com/P-H-C/phc-winner-argon2
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* Copyright 2015
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* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
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*/
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#ifndef BLAKE_ROUND_MKA_H
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#define BLAKE_ROUND_MKA_H
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#include "blake2.h"
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#include "blake2-impl.h"
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/* designed by the Lyra PHC team */
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static FORCE_INLINE uint64_t fBlaMka(uint64_t x, uint64_t y) {
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const uint64_t m = UINT64_C(0xFFFFFFFF);
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const uint64_t xy = (x & m) * (y & m);
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return x + y + 2 * xy;
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}
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#define G(a, b, c, d) \
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do { \
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a = fBlaMka(a, b); \
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d = rotr64(d ^ a, 32); \
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c = fBlaMka(c, d); \
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b = rotr64(b ^ c, 24); \
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a = fBlaMka(a, b); \
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d = rotr64(d ^ a, 16); \
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c = fBlaMka(c, d); \
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b = rotr64(b ^ c, 63); \
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} while ((void)0, 0)
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#define BLAKE2_ROUND_NOMSG(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, \
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v12, v13, v14, v15) \
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do { \
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G(v0, v4, v8, v12); \
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G(v1, v5, v9, v13); \
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G(v2, v6, v10, v14); \
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G(v3, v7, v11, v15); \
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G(v0, v5, v10, v15); \
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G(v1, v6, v11, v12); \
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G(v2, v7, v8, v13); \
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G(v3, v4, v9, v14); \
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} while ((void)0, 0)
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#endif
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