mirror of
https://github.com/JayDDee/cpuminer-opt.git
synced 2025-09-17 23:44:27 +00:00
108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
#include "sha256t-gate.h"
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// Obsolete
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#if !defined(SHA256T_16WAY) && !defined(SHA256T_8WAY) && !defined(SHA256T_4WAY)
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdio.h>
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#include <openssl/sha.h>
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static __thread SHA256_CTX sha256t_ctx __attribute__ ((aligned (64)));
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void sha256t_midstate( const void* input )
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{
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SHA256_Init( &sha256t_ctx );
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SHA256_Update( &sha256t_ctx, input, 64 );
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}
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void sha256t_hash( void* output, const void* input )
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{
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uint32_t _ALIGN(64) hash[16];
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const int midlen = 64; // bytes
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const int tail = 80 - midlen; // 16
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SHA256_CTX ctx __attribute__ ((aligned (64)));
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memcpy( &ctx, &sha256t_ctx, sizeof sha256t_ctx );
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SHA256_Update( &ctx, input + midlen, tail );
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SHA256_Final( (unsigned char*)hash, &ctx );
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SHA256_Init( &ctx );
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SHA256_Update( &ctx, hash, 32 );
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SHA256_Final( (unsigned char*)hash, &ctx );
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SHA256_Init( &ctx );
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SHA256_Update( &ctx, hash, 32 );
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SHA256_Final( (unsigned char*)hash, &ctx );
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memcpy( output, hash, 32 );
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}
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int scanhash_sha256t( struct work *work, uint32_t max_nonce,
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uint64_t *hashes_done, struct thr_info *mythr )
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{
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uint32_t *pdata = work->data;
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uint32_t *ptarget = work->target;
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uint32_t n = pdata[19] - 1;
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const uint32_t first_nonce = pdata[19];
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const uint32_t Htarg = ptarget[7];
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#ifdef _MSC_VER
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uint32_t __declspec(align(32)) hash64[8];
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#else
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uint32_t hash64[8] __attribute__((aligned(32)));
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#endif
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uint32_t endiandata[32];
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int thr_id = mythr->id; // thr_id arg is deprecated
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uint64_t htmax[] = {
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0,
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0xF,
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0xFF,
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0xFFF,
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0xFFFF,
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0x10000000
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};
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uint32_t masks[] = {
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0xFFFFFFFF,
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0xFFFFFFF0,
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0xFFFFFF00,
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0xFFFFF000,
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0xFFFF0000,
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0
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};
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// we need bigendian data...
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casti_m128i( endiandata, 0 ) = mm128_bswap_32( casti_m128i( pdata, 0 ) );
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casti_m128i( endiandata, 1 ) = mm128_bswap_32( casti_m128i( pdata, 1 ) );
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casti_m128i( endiandata, 2 ) = mm128_bswap_32( casti_m128i( pdata, 2 ) );
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casti_m128i( endiandata, 3 ) = mm128_bswap_32( casti_m128i( pdata, 3 ) );
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casti_m128i( endiandata, 4 ) = mm128_bswap_32( casti_m128i( pdata, 4 ) );
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sha256t_midstate( endiandata );
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for ( int m = 0; m < 6; m++ )
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{
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if ( Htarg <= htmax[m] )
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{
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uint32_t mask = masks[m];
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do {
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pdata[19] = ++n;
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be32enc(&endiandata[19], n);
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sha256t_hash( hash64, endiandata );
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if ( !(hash64[7] & mask) )
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if ( fulltest( hash64, ptarget ) && !opt_benchmark )
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submit_solution( work, hash64, mythr );
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} while ( n < max_nonce && !work_restart[thr_id].restart );
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break;
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}
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}
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*hashes_done = n - first_nonce + 1;
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pdata[19] = n;
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return 0;
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}
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#endif
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