85 lines
2.7 KiB
C
85 lines
2.7 KiB
C
/*
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* Copyright 2011 ArtForz, 2011-2014 pooler, 2018 The Resistance developers, 2020 The Sugarchain Yumekawa developers
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is loosly based on a tiny portion of pooler's cpuminer scrypt.c.
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*/
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#include "cpuminer-config.h"
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#include "miner.h"
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#include "yespower-1.0.1-power2b/yespower-p2b.h"
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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int scanhash_mbc_yespower(int thr_id, uint32_t *pdata,
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const uint32_t *ptarget,
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uint32_t max_nonce, unsigned long *hashes_done)
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{
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static const yespower_params_t params = {
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.version = YESPOWER_1_0_BLAKE2B,
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.N = 2048,
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.r = 32,
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.pers = (const uint8_t *)"Now I am become Death, the destroyer of worlds",
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.perslen = 46
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};
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union {
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uint8_t u8[8];
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uint32_t u32[20];
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} data;
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union {
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yespower_binary_t_p2b yb;
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uint32_t u32[7];
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} hash;
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uint32_t n = pdata[19] - 1;
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const uint32_t Htarg = ptarget[7];
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int i;
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for (i = 0; i < 19; i++)
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be32enc(&data.u32[i], pdata[i]);
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do {
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be32enc(&data.u32[19], ++n);
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if (yespower_tls_p2b(data.u8, 80, ¶ms, &hash.yb))
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abort();
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if (le32dec(&hash.u32[7]) <= Htarg) {
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for (i = 0; i < 7; i++)
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hash.u32[i] = le32dec(&hash.u32[i]);
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if (fulltest(hash.u32, ptarget)) {
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*hashes_done = n - pdata[19] + 1;
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pdata[19] = n;
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return 1;
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}
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}
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} while (n < max_nonce && !work_restart[thr_id].restart);
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*hashes_done = n - pdata[19] + 1;
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pdata[19] = n;
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return 0;
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}
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