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v3.7.3

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Jay D Dee
2017-11-20 21:19:15 -05:00
parent ab39e88318
commit 6d1361c87f
46 changed files with 6314 additions and 141 deletions
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95
algo/skein/skein2-4way.c Normal file
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#include "skein-gate.h"
#include "algo-gate-api.h"
#include <string.h>
#include <stdint.h>
#include "skein-hash-4way.h"
#if defined(__AVX2__)
void skein2hash_4way( void *output, const void *input )
{
skein512_4way_context ctx;
uint64_t hash[8*4] __attribute__ ((aligned (64)));
uint64_t *out64 = (uint64_t*)output;
skein512_4way_init( &ctx );
skein512_4way( &ctx, input, 80 );
skein512_4way_close( &ctx, hash );
skein512_4way_init( &ctx );
skein512_4way( &ctx, hash, 64 );
skein512_4way_close( &ctx, hash );
m256_deinterleave_4x64( out64, out64+4, out64+8, out64+12, hash, 256 );
}
int scanhash_skein2_4way( int thr_id, struct work *work, uint32_t max_nonce,
uint64_t *hashes_done )
{
uint32_t hash[4*8] __attribute__ ((aligned (64)));
uint32_t vdata[20*4] __attribute__ ((aligned (64)));
uint32_t endiandata[20] __attribute__ ((aligned (64)));
uint64_t *edata = (uint64_t*)endiandata;
uint32_t *pdata = work->data;
uint32_t *ptarget = work->target;
const uint32_t Htarg = ptarget[7];
const uint32_t first_nonce = pdata[19];
uint32_t n = first_nonce;
// hash is returned deinterleaved
uint32_t *nonces = work->nonces;
bool *found = work->nfound;
int num_found;
swab32_array( endiandata, pdata, 20 );
m256_interleave_4x64( (uint64_t*)vdata, edata, edata, edata, edata, 640 );
uint32_t *noncep0 = vdata + 73; // 9*8 + 1
uint32_t *noncep1 = vdata + 75;
uint32_t *noncep2 = vdata + 77;
uint32_t *noncep3 = vdata + 79;
do
{
found[0] = found[1] = found[2] = found[3] = false;
num_found = 0;
be32enc( noncep0, n );
be32enc( noncep1, n+1 );
be32enc( noncep2, n+2 );
be32enc( noncep3, n+3 );
skein2hash( hash, vdata );
if ( hash[7] < Htarg && fulltest( hash, ptarget ) )
{
found[0] = true;
num_found++;
nonces[0] = n;
}
if ( (hash+8)[7] < Htarg && fulltest( hash+8, ptarget ) )
{
found[1] = true;
num_found++;
nonces[1] = n+1;
}
if ( (hash+16)[7] < Htarg && fulltest( hash+16, ptarget ) )
{
found[2] = true;
num_found++;
nonces[2] = n+2;
}
if ( (hash+24)[7] < Htarg && fulltest( hash+24, ptarget ) )
{
found[3] = true;
num_found++;
nonces[3] = n+3;
}
n += 4;
} while ( (num_found == 0) && (n < max_nonce)
&& !work_restart[thr_id].restart );
*hashes_done = n - first_nonce + 1;
return num_found;
}
#endif