mirror of
https://github.com/JayDDee/cpuminer-opt.git
synced 2025-09-17 23:44:27 +00:00
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
#include "skein-gate.h"
|
|
#include <string.h>
|
|
#include <stdint.h>
|
|
#include "skein-hash-4way.h"
|
|
#include "algo/sha/sha2-hash-4way.h"
|
|
|
|
#if defined (SKEIN_4WAY)
|
|
|
|
void skeinhash_4way( void *state, const void *input )
|
|
{
|
|
uint64_t vhash64[8*4] __attribute__ ((aligned (64)));
|
|
uint32_t vhash32[16*4] __attribute__ ((aligned (64)));
|
|
skein512_4way_context ctx_skein;
|
|
sha256_4way_context ctx_sha256;
|
|
|
|
skein512_4way_init( &ctx_skein );
|
|
skein512_4way( &ctx_skein, input, 80 );
|
|
skein512_4way_close( &ctx_skein, vhash64 );
|
|
|
|
mm256_rintrlv_4x64_4x32( vhash32, vhash64, 512 );
|
|
|
|
sha256_4way_init( &ctx_sha256 );
|
|
sha256_4way( &ctx_sha256, vhash32, 64 );
|
|
sha256_4way_close( &ctx_sha256, state );
|
|
|
|
mm128_dintrlv_4x32( state, state+32, state+64, state+96,
|
|
vhash32, 256 );
|
|
}
|
|
|
|
int scanhash_skein_4way( int thr_id, struct work *work, uint32_t max_nonce,
|
|
uint64_t *hashes_done )
|
|
{
|
|
uint32_t vdata[20*4] __attribute__ ((aligned (64)));
|
|
uint32_t hash[8*4] __attribute__ ((aligned (64)));
|
|
uint32_t lane_hash[8];
|
|
uint32_t *hash7 = &(hash[7<<2]);
|
|
uint32_t edata[20] __attribute__ ((aligned (64)));
|
|
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;
|
|
int num_found = 0;
|
|
|
|
// data is 80 bytes, 20 u32 or 4 u64.
|
|
|
|
swab32_array( edata, pdata, 20 );
|
|
|
|
mm256_intrlv_4x64( vdata, edata, edata, edata, edata, 640 );
|
|
|
|
uint32_t *noncep = vdata + 73; // 9*8 + 1
|
|
|
|
do
|
|
{
|
|
be32enc( noncep, n );
|
|
be32enc( noncep+2, n+1 );
|
|
be32enc( noncep+4, n+2 );
|
|
be32enc( noncep+6, n+3 );
|
|
|
|
skeinhash_4way( hash, vdata );
|
|
|
|
for ( int lane = 0; lane < 4; lane++ )
|
|
if ( hash7[ lane ] <= Htarg )
|
|
{
|
|
mm128_extract_lane_4x32( lane_hash, hash, lane, 256 );
|
|
if ( fulltest( lane_hash, ptarget ) )
|
|
{
|
|
pdata[19] = n + lane;
|
|
nonces[ num_found++ ] = n + lane;
|
|
work_set_target_ratio( work, lane_hash );
|
|
}
|
|
}
|
|
n += 4;
|
|
} while ( (num_found == 0) && (n < max_nonce)
|
|
&& !work_restart[thr_id].restart );
|
|
|
|
*hashes_done = n - first_nonce + 1;
|
|
return num_found;
|
|
}
|
|
|
|
#endif
|