mirror of
https://github.com/JayDDee/cpuminer-opt.git
synced 2025-09-17 23:44:27 +00:00
100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
#include "miner.h"
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#include "algo-gate-api.h"
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdio.h>
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#include "algo/skein/sph_skein.h"
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#include "algo/gost/sph_gost.h"
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#include "algo/shavite/sph_shavite.h"
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#include "algo/shabal/sph_shabal.h"
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typedef struct {
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sph_gost512_context gost;
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sph_shavite512_context shavite;
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sph_skein512_context skein;
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sph_shabal512_context shabal;
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} veltor_ctx_holder;
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veltor_ctx_holder veltor_ctx;
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void init_veltor_ctx()
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{
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sph_gost512_init( &veltor_ctx.gost );
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sph_shavite512_init( &veltor_ctx.shavite );
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sph_skein512_init( &veltor_ctx.skein);
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sph_shabal512_init( &veltor_ctx.shabal);
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}
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void veltorhash(void *output, const void *input)
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{
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uint32_t _ALIGN(64) hashA[16], hashB[16];
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veltor_ctx_holder ctx;
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memcpy( &ctx, &veltor_ctx, sizeof(veltor_ctx) );
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sph_skein512(&ctx.skein, input, 80);
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sph_skein512_close(&ctx.skein, hashA);
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sph_shavite512(&ctx.shavite, hashA, 64);
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sph_shavite512_close(&ctx.shavite, hashB);
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sph_shabal512(&ctx.shabal, hashB, 64);
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sph_shabal512_close(&ctx.shabal, hashA);
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sph_gost512(&ctx.gost, hashA, 64);
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sph_gost512_close(&ctx.gost, hashB);
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memcpy(output, hashB, 32);
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}
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int scanhash_veltor(int thr_id, struct work *work, uint32_t max_nonce, uint64_t *hashes_done)
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{
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uint32_t _ALIGN(128) hash[8];
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uint32_t _ALIGN(128) endiandata[20];
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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 Htarg = ptarget[7];
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const uint32_t first_nonce = pdata[19];
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uint32_t nonce = first_nonce;
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volatile uint8_t *restart = &(work_restart[thr_id].restart);
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if (opt_benchmark)
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ptarget[7] = 0x0cff;
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// we need bigendian data...
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for (int i=0; i < 19; i++) {
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be32enc(&endiandata[i], pdata[i]);
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}
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do {
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be32enc(&endiandata[19], nonce);
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veltorhash(hash, endiandata);
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if (hash[7] <= Htarg && fulltest(hash, ptarget)) {
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work_set_target_ratio(work, hash);
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pdata[19] = nonce;
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*hashes_done = pdata[19] - first_nonce;
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return 1;
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}
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nonce++;
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} while (nonce < max_nonce && !(*restart));
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pdata[19] = nonce;
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*hashes_done = pdata[19] - first_nonce + 1;
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return 0;
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}
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bool register_veltor_algo( algo_gate_t* gate )
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{
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gate->optimizations = SSE2_OPT;
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init_veltor_ctx();
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gate->scanhash = (void*)&scanhash_veltor;
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gate->hash = (void*)&veltorhash;
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gate->hash_alt = (void*)&veltorhash;
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gate->get_max64 = (void*)&get_max64_0x3ffff;
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}
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