mirror of
https://github.com/JayDDee/cpuminer-opt.git
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107 lines
2.9 KiB
C
107 lines
2.9 KiB
C
#include "blakecoin-gate.h"
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#if defined (BLAKECOIN_4WAY)
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#include "blake-hash-4way.h"
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#include <string.h>
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#include <stdint.h>
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#include <memory.h>
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blake256r8_4way_context blakecoin_ctx;
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void blakecoin_4way_hash(void *state, const void *input)
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{
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uint32_t vhash[8*4] __attribute__ ((aligned (64)));
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blake256r8_4way_context ctx;
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memcpy( &ctx, &blakecoin_ctx, sizeof ctx );
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blake256r8_4way( &ctx, input + (64<<2), 16 );
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blake256r8_4way_close( &ctx, vhash );
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mm_deinterleave_4x32( state, state+32, state+64, state+96, vhash, 256 );
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}
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int scanhash_blakecoin_4way( int thr_id, struct work *work, uint32_t max_nonce,
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uint64_t *hashes_done )
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{
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uint32_t vdata[20*4] __attribute__ ((aligned (64)));
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uint32_t hash[8*4] __attribute__ ((aligned (32)));
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uint32_t *pdata = work->data;
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uint32_t *ptarget = work->target;
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const uint32_t first_nonce = pdata[19];
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uint32_t HTarget = ptarget[7];
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uint32_t _ALIGN(32) edata[20];
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uint32_t n = first_nonce;
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uint32_t *nonces = work->nonces;
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bool *found = work->nfound;
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int num_found = 0;
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if (opt_benchmark)
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HTarget = 0x7f;
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// we need big endian data...
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swab32_array( edata, pdata, 20 );
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mm_interleave_4x32( vdata, edata, edata, edata, edata, 640 );
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blake256r8_4way_init( &blakecoin_ctx );
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blake256r8_4way( &blakecoin_ctx, vdata, 64 );
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uint32_t *noncep = vdata + 76; // 19*4
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do {
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found[0] = found[1] = found[2] = found[3] = false;
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be32enc( noncep, n );
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be32enc( noncep +1, n+1 );
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be32enc( noncep +2, n+2 );
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be32enc( noncep +3, n+3 );
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blakecoin_4way_hash( hash, vdata );
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pdata[19] = n;
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if ( hash[7] <= HTarget && fulltest( hash, ptarget ) )
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{
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found[0] = true;
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num_found++;
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nonces[0] = n;
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work_set_target_ratio( work, hash );
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}
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if ( (hash+8)[7] <= HTarget && fulltest( hash+8, ptarget ) )
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{
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found[1] = true;
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num_found++;
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nonces[1] = n+1;
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work_set_target_ratio( work, hash+8 );
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}
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if ( (hash+16)[7] <= HTarget && fulltest( hash+16, ptarget ) )
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{
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found[2] = true;
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num_found++;
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nonces[2] = n+2;
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work_set_target_ratio( work, hash+16 );
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}
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if ( (hash+24)[7] <= HTarget && fulltest( hash+24, ptarget ) )
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{
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found[3] = true;
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num_found++;
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nonces[3] = n+3;
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work_set_target_ratio( work, hash+24 );
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}
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n += 4;
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} while ( (num_found == 0) && (n < max_nonce)
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&& !work_restart[thr_id].restart );
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*hashes_done = n - first_nonce + 1;
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// workaround to prevent flood of hash reports when nonce range exhasuted
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// and thread is spinning waiting for new work
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if ( ( n >= max_nonce ) && ( *hashes_done < 10 ) )
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{
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*hashes_done = 0;
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sleep(1);
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}
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return num_found;
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}
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#endif
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