mirror of
https://github.com/JayDDee/cpuminer-opt.git
synced 2025-09-17 23:44:27 +00:00
124 lines
3.1 KiB
C
124 lines
3.1 KiB
C
#include <memory.h>
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#include <mm_malloc.h>
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#include "miner.h"
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#include "algo-gate-api.h"
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#include "lyra2.h"
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#include "algo/blake/sph_blake.h"
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#include "avxdefs.h"
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__thread uint64_t* zcoin_wholeMatrix;
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static __thread sph_blake256_context zcoin_blake_mid;
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void zcoin_midstate( const void* input )
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{
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sph_blake256_init( &zcoin_blake_mid );
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sph_blake256( &zcoin_blake_mid, input, 64 );
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}
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// block 2050 new algo, blake plus new lyra parms. new input
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// is power of 2 so normal lyra can be used
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//void zcoin_hash(void *state, const void *input, uint32_t height)
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void zcoin_hash(void *state, const void *input )
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{
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uint32_t _ALIGN(64) hash[16];
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sph_blake256_context ctx_blake __attribute__ ((aligned (64)));
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memcpy( &ctx_blake, &zcoin_blake_mid, sizeof zcoin_blake_mid );
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sph_blake256( &ctx_blake, input + 64, 16 );
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sph_blake256_close( &ctx_blake, hash );
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LYRA2Z( zcoin_wholeMatrix, hash, 32, hash, 32, hash, 32, 8, 8, 8);
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memcpy(state, hash, 32);
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}
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int scanhash_zcoin( 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 _ALIGN(64) hash[8];
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uint32_t _ALIGN(64) 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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if (opt_benchmark)
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ptarget[7] = 0x0000ff;
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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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zcoin_midstate( endiandata );
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do {
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be32enc(&endiandata[19], nonce);
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zcoin_hash( 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 && !work_restart[thr_id].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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//int64_t get_max64_0xffffLL() { return 0xffffLL; };
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void zcoin_set_target( struct work* work, double job_diff )
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{
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work_set_target( work, job_diff / (256.0 * opt_diff_factor) );
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}
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/*
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bool zcoin_get_work_height( struct work* work, struct stratum_ctx* sctx )
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{
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work->height = sctx->bloc_height;
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return false;
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}
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*/
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bool zcoin_thread_init()
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{
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const int64_t ROW_LEN_INT64 = BLOCK_LEN_INT64 * 8; // nCols
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const int64_t ROW_LEN_BYTES = ROW_LEN_INT64 * 8;
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int i = (int64_t)ROW_LEN_BYTES * 8; // nRows;
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zcoin_wholeMatrix = _mm_malloc( i, 64 );
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if ( zcoin_wholeMatrix == NULL )
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return false;
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#if defined (__AVX2__)
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memset_zero_m256i( (__m256i*)zcoin_wholeMatrix, i/32 );
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#elif defined(__AVX__)
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memset_zero_m128i( (__m128i*)zcoin_wholeMatrix, i/16 );
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#else
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memset( zcoin_wholeMatrix, 0, i );
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#endif
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return true;
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}
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bool register_zcoin_algo( algo_gate_t* gate )
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{
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gate->optimizations = SSE2_OPT | AES_OPT | AVX_OPT | AVX2_OPT;
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gate->miner_thread_init = (void*)&zcoin_thread_init;
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gate->scanhash = (void*)&scanhash_zcoin;
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gate->hash = (void*)&zcoin_hash;
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gate->get_max64 = (void*)&get_max64_0xffffLL;
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gate->set_target = (void*)&zcoin_set_target;
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// gate->prevent_dupes = (void*)&zcoin_get_work_height;
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return true;
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};
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