Files
cpuminer-opt-gpu/algo/groestl/groestl.c
2016-09-22 13:16:18 -04:00

118 lines
2.7 KiB
C

#include "miner.h"
#include "algo-gate-api.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include "sph_groestl.h"
// local override
#define NO_AES_NI
#ifndef NO_AES_NI
#include "algo/groestl/aes_ni/hash-groestl.h"
#endif
typedef struct
{
#ifndef NO_AES_NI
hashState_groestl groestl1, groestl2;
#else
sph_groestl512_context groestl;
#endif
} groestl_ctx_holder;
static groestl_ctx_holder groestl_ctx;
void init_groestl_ctx()
{
#ifndef NO_AES_NI
init_groestl( &groestl_ctx.groestl1 );
init_groestl( &groestl_ctx.groestl2 );
#else
sph_groestl512_init( &groestl_ctx.groestl );
#endif
}
void groestlhash(void *output, const void *input)
{
uint32_t _ALIGN(32) hash[16];
groestl_ctx_holder ctx;
memcpy( &ctx, &groestl_ctx, sizeof(groestl_ctx) );
// memset(&hash[0], 0, sizeof(hash));
#ifndef NO_AES_NI
update_groestl( &ctx.groestl1, (char*)input, 80 );
final_groestl( &ctx.groestl1,(char*)hash);
update_groestl( &ctx.groestl2, (char*)hash, 64 );
final_groestl( &ctx.groestl2, (char*)hash);
#else
sph_groestl512(&ctx.groestl, input, 80);
sph_groestl512_close(&ctx.groestl, hash);
sph_groestl512(&ctx.groestl, hash, 64);
sph_groestl512_close(&ctx.groestl, hash);
#endif
memcpy(output, hash, 32);
}
int scanhash_groestl(int thr_id, struct work *work,
uint32_t max_nonce, uint64_t *hashes_done)
{
uint32_t *pdata = work->data;
uint32_t *ptarget = work->target;
uint32_t _ALIGN(64) endiandata[20];
const uint32_t first_nonce = pdata[19];
uint32_t nonce = first_nonce;
if (opt_benchmark)
((uint32_t*)ptarget)[7] = 0x0000ff;
swab32_array( endiandata, pdata, 20 );
do {
const uint32_t Htarg = ptarget[7];
uint32_t hash[8];
be32enc(&endiandata[19], nonce);
groestlhash(hash, endiandata);
if (hash[7] <= Htarg )
if ( fulltest(hash, ptarget))
{
pdata[19] = nonce;
*hashes_done = pdata[19] - first_nonce;
return 1;
}
nonce++;
} while (nonce < max_nonce && !work_restart[thr_id].restart);
pdata[19] = nonce;
*hashes_done = pdata[19] - first_nonce + 1;
return 0;
}
void groestl_set_target( struct work* work, double job_diff )
{
work_set_target( work, job_diff / (256.0 * opt_diff_factor) );
}
bool register_groestl_algo( algo_gate_t* gate )
{
init_groestl_ctx();
gate->scanhash = (void*)&scanhash_groestl;
gate->hash = (void*)&groestlhash;
gate->hash_alt = (void*)&groestlhash;
gate->set_target = (void*)&groestl_set_target;
gate->gen_merkle_root = (void*)&SHA256_gen_merkle_root;
gate->get_max64 = (void*)&get_max64_0x3ffff;
return true;
};