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68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/**
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* Blake2-B Implementation
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* tpruvot@github 2015-2016
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*/
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#include "blake2b-gate.h"
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#if defined(BLAKE2B_4WAY)
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#include <string.h>
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#include <stdint.h>
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#include "blake2b-hash-4way.h"
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// Function not used, code inlined.
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void blake2b_4way_hash(void *output, const void *input)
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{
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blake2b_4way_ctx ctx;
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blake2b_4way_init( &ctx );
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blake2b_4way_update( &ctx, input, 80 );
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blake2b_4way_final( &ctx, output );
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}
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int scanhash_blake2b_4way( 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 hash[8*4] __attribute__ ((aligned (64)));;
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uint32_t vdata[20*4] __attribute__ ((aligned (32)));;
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uint32_t lane_hash[8] __attribute__ ((aligned (32)));
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blake2b_4way_ctx ctx __attribute__ ((aligned (32)));
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uint32_t *hash7 = &(hash[25]); // 3*8+1
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uint32_t *pdata = work->data;
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uint32_t *ptarget = work->target;
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int thr_id = mythr->id;
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__m256i *noncev = (__m256i*)vdata + 9; // aligned
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const uint32_t Htarg = ptarget[7];
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const uint32_t first_nonce = pdata[19];
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uint32_t n = first_nonce;
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mm256_bswap32_intrlv80_4x64( vdata, pdata );
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do {
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*noncev = mm256_intrlv_blend_32( mm256_bswap_32(
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_mm256_set_epi32( n+3, 0, n+2, 0, n+1, 0, n, 0 ) ), *noncev );
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blake2b_4way_init( &ctx );
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blake2b_4way_update( &ctx, vdata, 80 );
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blake2b_4way_final( &ctx, hash );
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for ( int lane = 0; lane < 4; lane++ )
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if ( hash7[ lane<<1 ] < Htarg )
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{
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extr_lane_4x64( lane_hash, hash, lane, 256 );
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if ( fulltest( lane_hash, ptarget ) && !opt_benchmark )
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{
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pdata[19] = n + lane;
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submit_lane_solution( work, lane_hash, mythr, lane );
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}
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}
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n += 4;
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} while ( (n < max_nonce-4) && !work_restart[thr_id].restart);
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*hashes_done = n - first_nonce + 1;
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return 0;
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}
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#endif
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