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237 lines
8.9 KiB
C
237 lines
8.9 KiB
C
/* XMRig
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* Copyright 2010 Jeff Garzik <jgarzik@pobox.com>
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* Copyright 2012-2014 pooler <pooler@litecoinpool.org>
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* Copyright 2014 Lucas Jones <https://github.com/lucasjones>
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* Copyright 2014-2016 Wolf9466 <https://github.com/OhGodAPet>
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* Copyright 2016 Jay D Dee <jayddee246@gmail.com>
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* Copyright 2017 fireice-uk <https://github.com/fireice-uk>
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* Copyright 2016-2017 XMRig <support@xmrig.com>
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*
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*
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* This program 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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*
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* This program 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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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __CRYPTONIGHT_SOFTAES_H__
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#define __CRYPTONIGHT_SOFTAES_H__
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#include <x86intrin.h>
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extern __m128i soft_aesenc(__m128i in, __m128i key);
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extern __m128i soft_aeskeygenassist(__m128i key, uint8_t rcon);
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// This will shift and xor tmp1 into itself as 4 32-bit vals such as
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// sl_xor(a1 a2 a3 a4) = a1 (a2^a1) (a3^a2^a1) (a4^a3^a2^a1)
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inline __m128i sl_xor(__m128i tmp1)
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{
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__m128i tmp4;
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tmp4 = _mm_slli_si128(tmp1, 0x04);
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tmp1 = _mm_xor_si128(tmp1, tmp4);
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tmp4 = _mm_slli_si128(tmp4, 0x04);
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tmp1 = _mm_xor_si128(tmp1, tmp4);
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tmp4 = _mm_slli_si128(tmp4, 0x04);
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tmp1 = _mm_xor_si128(tmp1, tmp4);
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return tmp1;
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}
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inline void aes_genkey_sub(__m128i* xout0, __m128i* xout2, uint8_t rcon)
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{
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__m128i xout1 = soft_aeskeygenassist(*xout2, rcon);
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xout1 = _mm_shuffle_epi32(xout1, 0xFF); // see PSHUFD, set all elems to 4th elem
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*xout0 = sl_xor(*xout0);
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*xout0 = _mm_xor_si128(*xout0, xout1);
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xout1 = soft_aeskeygenassist(*xout0, 0x00);
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xout1 = _mm_shuffle_epi32(xout1, 0xAA); // see PSHUFD, set all elems to 3rd elem
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*xout2 = sl_xor(*xout2);
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*xout2 = _mm_xor_si128(*xout2, xout1);
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}
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inline void aes_round(__m128i key, __m128i* x0, __m128i* x1, __m128i* x2, __m128i* x3, __m128i* x4, __m128i* x5, __m128i* x6, __m128i* x7)
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{
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*x0 = soft_aesenc(*x0, key);
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*x1 = soft_aesenc(*x1, key);
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*x2 = soft_aesenc(*x2, key);
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*x3 = soft_aesenc(*x3, key);
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*x4 = soft_aesenc(*x4, key);
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*x5 = soft_aesenc(*x5, key);
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*x6 = soft_aesenc(*x6, key);
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*x7 = soft_aesenc(*x7, key);
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}
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inline void aes_genkey(const __m128i* memory, __m128i* k0, __m128i* k1, __m128i* k2, __m128i* k3, __m128i* k4, __m128i* k5, __m128i* k6, __m128i* k7, __m128i* k8, __m128i* k9)
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{
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__m128i xout0 = _mm_load_si128(memory);
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__m128i xout2 = _mm_load_si128(memory + 1);
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*k0 = xout0;
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*k1 = xout2;
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aes_genkey_sub(&xout0, &xout2, 0x1);
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*k2 = xout0;
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*k3 = xout2;
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aes_genkey_sub(&xout0, &xout2, 0x2);
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*k4 = xout0;
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*k5 = xout2;
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aes_genkey_sub(&xout0, &xout2, 0x4);
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*k6 = xout0;
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*k7 = xout2;
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aes_genkey_sub(&xout0, &xout2, 0x8);
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*k8 = xout0;
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*k9 = xout2;
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}
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inline void cn_explode_scratchpad(const __m128i* input, __m128i* output)
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{
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// This is more than we have registers, compiler will assign 2 keys on the stack
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__m128i xin0, xin1, xin2, xin3, xin4, xin5, xin6, xin7;
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__m128i k0, k1, k2, k3, k4, k5, k6, k7, k8, k9;
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aes_genkey(input, &k0, &k1, &k2, &k3, &k4, &k5, &k6, &k7, &k8, &k9);
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xin0 = _mm_load_si128(input + 4);
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xin1 = _mm_load_si128(input + 5);
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xin2 = _mm_load_si128(input + 6);
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xin3 = _mm_load_si128(input + 7);
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xin4 = _mm_load_si128(input + 8);
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xin5 = _mm_load_si128(input + 9);
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xin6 = _mm_load_si128(input + 10);
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xin7 = _mm_load_si128(input + 11);
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for (size_t i = 0; i < MEMORY / sizeof(__m128i); i += 8) {
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aes_round(k0, &xin0, &xin1, &xin2, &xin3, &xin4, &xin5, &xin6, &xin7);
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aes_round(k1, &xin0, &xin1, &xin2, &xin3, &xin4, &xin5, &xin6, &xin7);
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aes_round(k2, &xin0, &xin1, &xin2, &xin3, &xin4, &xin5, &xin6, &xin7);
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aes_round(k3, &xin0, &xin1, &xin2, &xin3, &xin4, &xin5, &xin6, &xin7);
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aes_round(k4, &xin0, &xin1, &xin2, &xin3, &xin4, &xin5, &xin6, &xin7);
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aes_round(k5, &xin0, &xin1, &xin2, &xin3, &xin4, &xin5, &xin6, &xin7);
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aes_round(k6, &xin0, &xin1, &xin2, &xin3, &xin4, &xin5, &xin6, &xin7);
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aes_round(k7, &xin0, &xin1, &xin2, &xin3, &xin4, &xin5, &xin6, &xin7);
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aes_round(k8, &xin0, &xin1, &xin2, &xin3, &xin4, &xin5, &xin6, &xin7);
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aes_round(k9, &xin0, &xin1, &xin2, &xin3, &xin4, &xin5, &xin6, &xin7);
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_mm_store_si128(output + i + 0, xin0);
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_mm_store_si128(output + i + 1, xin1);
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_mm_store_si128(output + i + 2, xin2);
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_mm_store_si128(output + i + 3, xin3);
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_mm_store_si128(output + i + 4, xin4);
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_mm_store_si128(output + i + 5, xin5);
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_mm_store_si128(output + i + 6, xin6);
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_mm_store_si128(output + i + 7, xin7);
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}
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}
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inline void cn_implode_scratchpad(const __m128i* input, __m128i* output)
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{
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// This is more than we have registers, compiler will assign 2 keys on the stack
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__m128i xout0, xout1, xout2, xout3, xout4, xout5, xout6, xout7;
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__m128i k0, k1, k2, k3, k4, k5, k6, k7, k8, k9;
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aes_genkey(output + 2, &k0, &k1, &k2, &k3, &k4, &k5, &k6, &k7, &k8, &k9);
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xout0 = _mm_load_si128(output + 4);
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xout1 = _mm_load_si128(output + 5);
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xout2 = _mm_load_si128(output + 6);
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xout3 = _mm_load_si128(output + 7);
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xout4 = _mm_load_si128(output + 8);
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xout5 = _mm_load_si128(output + 9);
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xout6 = _mm_load_si128(output + 10);
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xout7 = _mm_load_si128(output + 11);
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for (size_t i = 0; __builtin_expect(i < MEMORY / sizeof(__m128i), 1); i += 8)
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{
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xout0 = _mm_xor_si128(_mm_load_si128(input + i + 0), xout0);
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xout1 = _mm_xor_si128(_mm_load_si128(input + i + 1), xout1);
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xout2 = _mm_xor_si128(_mm_load_si128(input + i + 2), xout2);
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xout3 = _mm_xor_si128(_mm_load_si128(input + i + 3), xout3);
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xout4 = _mm_xor_si128(_mm_load_si128(input + i + 4), xout4);
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xout5 = _mm_xor_si128(_mm_load_si128(input + i + 5), xout5);
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xout6 = _mm_xor_si128(_mm_load_si128(input + i + 6), xout6);
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xout7 = _mm_xor_si128(_mm_load_si128(input + i + 7), xout7);
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aes_round(k0, &xout0, &xout1, &xout2, &xout3, &xout4, &xout5, &xout6, &xout7);
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aes_round(k1, &xout0, &xout1, &xout2, &xout3, &xout4, &xout5, &xout6, &xout7);
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aes_round(k2, &xout0, &xout1, &xout2, &xout3, &xout4, &xout5, &xout6, &xout7);
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aes_round(k3, &xout0, &xout1, &xout2, &xout3, &xout4, &xout5, &xout6, &xout7);
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aes_round(k4, &xout0, &xout1, &xout2, &xout3, &xout4, &xout5, &xout6, &xout7);
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aes_round(k5, &xout0, &xout1, &xout2, &xout3, &xout4, &xout5, &xout6, &xout7);
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aes_round(k6, &xout0, &xout1, &xout2, &xout3, &xout4, &xout5, &xout6, &xout7);
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aes_round(k7, &xout0, &xout1, &xout2, &xout3, &xout4, &xout5, &xout6, &xout7);
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aes_round(k8, &xout0, &xout1, &xout2, &xout3, &xout4, &xout5, &xout6, &xout7);
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aes_round(k9, &xout0, &xout1, &xout2, &xout3, &xout4, &xout5, &xout6, &xout7);
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}
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_mm_store_si128(output + 4, xout0);
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_mm_store_si128(output + 5, xout1);
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_mm_store_si128(output + 6, xout2);
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_mm_store_si128(output + 7, xout3);
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_mm_store_si128(output + 8, xout4);
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_mm_store_si128(output + 9, xout5);
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_mm_store_si128(output + 10, xout6);
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_mm_store_si128(output + 11, xout7);
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}
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#if defined(__x86_64__)
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# define EXTRACT64(X) _mm_cvtsi128_si64(X)
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inline uint64_t _umul128(uint64_t a, uint64_t b, uint64_t* hi)
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{
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unsigned __int128 r = (unsigned __int128) a * (unsigned __int128) b;
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*hi = r >> 64;
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return (uint64_t) r;
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}
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#elif defined(__i386__)
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# define HI32(X) \
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_mm_srli_si128((X), 4)
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# define EXTRACT64(X) \
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((uint64_t)(uint32_t)_mm_cvtsi128_si32(X) | \
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((uint64_t)(uint32_t)_mm_cvtsi128_si32(HI32(X)) << 32))
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inline uint64_t _umul128(uint64_t multiplier, uint64_t multiplicand, uint64_t *product_hi) {
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// multiplier = ab = a * 2^32 + b
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// multiplicand = cd = c * 2^32 + d
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// ab * cd = a * c * 2^64 + (a * d + b * c) * 2^32 + b * d
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uint64_t a = multiplier >> 32;
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uint64_t b = multiplier & 0xFFFFFFFF;
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uint64_t c = multiplicand >> 32;
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uint64_t d = multiplicand & 0xFFFFFFFF;
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//uint64_t ac = a * c;
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uint64_t ad = a * d;
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//uint64_t bc = b * c;
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uint64_t bd = b * d;
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uint64_t adbc = ad + (b * c);
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uint64_t adbc_carry = adbc < ad ? 1 : 0;
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// multiplier * multiplicand = product_hi * 2^64 + product_lo
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uint64_t product_lo = bd + (adbc << 32);
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uint64_t product_lo_carry = product_lo < bd ? 1 : 0;
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*product_hi = (a * c) + (adbc >> 32) + (adbc_carry << 32) + product_lo_carry;
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return product_lo;
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}
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#endif
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#endif /* __CRYPTONIGHT_SOFTAES_H__ */
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