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102 lines
4.8 KiB
C
102 lines
4.8 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 2017-2018 XMR-Stak <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
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* Copyright 2018 Lee Clagett <https://github.com/vtnerd>
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* Copyright 2018 SChernykh <https://github.com/SChernykh>
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* Copyright 2016-2018 XMRig <https://github.com/xmrig>, <support@xmrig.com>
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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 XMRIG_CRYPTONIGHT_MONERO_H
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#define XMRIG_CRYPTONIGHT_MONERO_H
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#include <fenv.h>
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#include <math.h>
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static inline __m128i int_sqrt_v2(const uint64_t n0)
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{
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__m128d x = _mm_castsi128_pd(_mm_add_epi64(_mm_cvtsi64_si128(n0 >> 12), _mm_set_epi64x(0, 1023ULL << 52)));
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x = _mm_sqrt_sd(_mm_setzero_pd(), x);
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uint64_t r = (uint64_t)(_mm_cvtsi128_si64(_mm_castpd_si128(x)));
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const uint64_t s = r >> 20;
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r >>= 19;
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uint64_t x2 = (s - (1022ULL << 32)) * (r - s - (1022ULL << 32) + 1);
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# if (defined(_MSC_VER) || __GNUC__ > 7 || (__GNUC__ == 7 && __GNUC_MINOR__ > 1)) && (defined(__x86_64__) || defined(_M_AMD64))
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_addcarry_u64(_subborrow_u64(0, x2, n0, (unsigned long long int*)&x2), r, 0, (unsigned long long int*)&r);
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# else
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if (x2 < n0) ++r;
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# endif
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return _mm_cvtsi64_si128(r);
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}
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# define VARIANT1_INIT(part) \
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uint64_t tweak1_2_##part = (*(const uint64_t*)(input + 35 + part * size) ^ \
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*((const uint64_t*)(ctx[part]->state) + 24)); \
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# define VARIANT2_INIT(part) \
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__m128i division_result_xmm_##part = _mm_cvtsi64_si128(h##part[12]); \
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__m128i sqrt_result_xmm_##part = _mm_cvtsi64_si128(h##part[13]);
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#ifdef _MSC_VER
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# define VARIANT2_SET_ROUNDING_MODE() { _control87(RC_DOWN, MCW_RC); }
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#else
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# define VARIANT2_SET_ROUNDING_MODE() { fesetround(FE_DOWNWARD); }
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#endif
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# define VARIANT2_INTEGER_MATH(part, cl, cx) \
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{ \
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const uint64_t sqrt_result = (uint64_t)(_mm_cvtsi128_si64(sqrt_result_xmm_##part)); \
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const uint64_t cx_0 = _mm_cvtsi128_si64(cx); \
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cl ^= (uint64_t)(_mm_cvtsi128_si64(division_result_xmm_##part)) ^ (sqrt_result << 32); \
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const uint32_t d = (uint32_t)(cx_0 + (sqrt_result << 1)) | 0x80000001UL; \
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const uint64_t cx_1 = _mm_cvtsi128_si64(_mm_srli_si128(cx, 8)); \
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const uint64_t division_result = (uint32_t)(cx_1 / d) + ((cx_1 % d) << 32); \
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division_result_xmm_##part = _mm_cvtsi64_si128((int64_t)(division_result)); \
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sqrt_result_xmm_##part = int_sqrt_v2(cx_0 + division_result); \
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}
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# define VARIANT2_SHUFFLE(base_ptr, offset, _a, _b, _b1) \
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{ \
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const __m128i chunk1 = _mm_load_si128((__m128i *)((base_ptr) + ((offset) ^ 0x10))); \
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const __m128i chunk2 = _mm_load_si128((__m128i *)((base_ptr) + ((offset) ^ 0x20))); \
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const __m128i chunk3 = _mm_load_si128((__m128i *)((base_ptr) + ((offset) ^ 0x30))); \
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_mm_store_si128((__m128i *)((base_ptr) + ((offset) ^ 0x10)), _mm_add_epi64(chunk3, _b1)); \
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_mm_store_si128((__m128i *)((base_ptr) + ((offset) ^ 0x20)), _mm_add_epi64(chunk1, _b)); \
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_mm_store_si128((__m128i *)((base_ptr) + ((offset) ^ 0x30)), _mm_add_epi64(chunk2, _a)); \
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}
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# define VARIANT2_SHUFFLE2(base_ptr, offset, _a, _b, _b1, hi, lo) \
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{ \
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const __m128i chunk1 = _mm_xor_si128(_mm_load_si128((__m128i *)((base_ptr) + ((offset) ^ 0x10))), _mm_set_epi64x(lo, hi)); \
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const __m128i chunk2 = _mm_load_si128((__m128i *)((base_ptr) + ((offset) ^ 0x20))); \
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hi ^= ((uint64_t*)((base_ptr) + ((offset) ^ 0x20)))[0]; \
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lo ^= ((uint64_t*)((base_ptr) + ((offset) ^ 0x20)))[1]; \
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const __m128i chunk3 = _mm_load_si128((__m128i *)((base_ptr) + ((offset) ^ 0x30))); \
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_mm_store_si128((__m128i *)((base_ptr) + ((offset) ^ 0x10)), _mm_add_epi64(chunk3, _b1)); \
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_mm_store_si128((__m128i *)((base_ptr) + ((offset) ^ 0x20)), _mm_add_epi64(chunk1, _b)); \
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_mm_store_si128((__m128i *)((base_ptr) + ((offset) ^ 0x30)), _mm_add_epi64(chunk2, _a)); \
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}
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#endif /* XMRIG_CRYPTONIGHT_MONERO_H */
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