mirror of
https://github.com/JayDDee/cpuminer-opt.git
synced 2025-09-17 23:44:27 +00:00
127 lines
4.3 KiB
C
127 lines
4.3 KiB
C
#include "lbry-gate.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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long double lbry_calc_network_diff( struct work *work )
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{
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// sample for diff 43.281 : 1c05ea29
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// todo: endian reversed on longpoll could be zr5 specific...
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uint32_t nbits = swab32( work->data[ LBRY_NBITS_INDEX ] );
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uint32_t bits = (nbits & 0xffffff);
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int16_t shift = (swab32(nbits) & 0xff); // 0x1c = 28
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long double d = (long double)0x0000ffff / (long double)bits;
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for (int m=shift; m < 29; m++) d *= 256.0;
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for (int m=29; m < shift; m++) d /= 256.0;
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if (opt_debug_diff)
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applog(LOG_DEBUG, "net diff: %f -> shift %u, bits %08x", d, shift, bits);
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return d;
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}
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// std_le should work but it doesn't
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void lbry_le_build_stratum_request( char *req, struct work *work,
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struct stratum_ctx *sctx )
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{
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unsigned char *xnonce2str;
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uint32_t ntime, nonce;
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char ntimestr[9], noncestr[9];
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le32enc( &ntime, work->data[ LBRY_NTIME_INDEX ] );
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le32enc( &nonce, work->data[ LBRY_NONCE_INDEX ] );
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bin2hex( ntimestr, (char*)(&ntime), sizeof(uint32_t) );
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bin2hex( noncestr, (char*)(&nonce), sizeof(uint32_t) );
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xnonce2str = abin2hex( work->xnonce2, work->xnonce2_len);
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snprintf( req, JSON_BUF_LEN,
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"{\"method\": \"mining.submit\", \"params\": [\"%s\", \"%s\", \"%s\", \"%s\", \"%s\"], \"id\":4}",
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rpc_user, work->job_id, xnonce2str, ntimestr, noncestr );
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free(xnonce2str);
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}
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/*
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void lbry_build_block_header( struct work* g_work, uint32_t version,
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uint32_t *prevhash, uint32_t *merkle_root,
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uint32_t ntime, uint32_t nbits )
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{
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int i;
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memset( g_work->data, 0, sizeof(g_work->data) );
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g_work->data[0] = version;
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if ( have_stratum )
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for ( i = 0; i < 8; i++ )
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g_work->data[1 + i] = le32dec( prevhash + i );
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else
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for (i = 0; i < 8; i++)
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g_work->data[ 8-i ] = le32dec( prevhash + i );
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for ( i = 0; i < 8; i++ )
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g_work->data[9 + i] = be32dec( merkle_root + i );
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g_work->data[ LBRY_NTIME_INDEX ] = ntime;
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g_work->data[ LBRY_NBITS_INDEX ] = nbits;
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g_work->data[28] = 0x80000000;
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}
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*/
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void lbry_build_extraheader( struct work* g_work, struct stratum_ctx* sctx )
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{
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unsigned char merkle_root[64] = { 0 };
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int i;
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algo_gate.gen_merkle_root( merkle_root, sctx );
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memset( g_work->data, 0, sizeof(g_work->data) );
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g_work->data[0] = le32dec( sctx->job.version );
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for ( i = 0; i < 8; i++ )
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g_work->data[1 + i] = le32dec( (uint32_t *) sctx->job.prevhash + i );
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for ( i = 0; i < 8; i++ )
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g_work->data[9 + i] = be32dec( (uint32_t *) merkle_root + i );
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for ( int i = 0; i < 8; i++ )
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g_work->data[17 + i] = ((uint32_t*)sctx->job.extra)[i];
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g_work->data[ LBRY_NTIME_INDEX ] = le32dec(sctx->job.ntime);
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g_work->data[ LBRY_NBITS_INDEX ] = le32dec(sctx->job.nbits);
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g_work->data[28] = 0x80000000;
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}
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int lbry_get_work_data_size() { return LBRY_WORK_DATA_SIZE; }
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bool register_lbry_algo( algo_gate_t* gate )
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{
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// gate->optimizations = AVX2_OPT | AVX512_OPT | SHA_OPT;
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#if defined (LBRY_16WAY)
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gate->scanhash = (void*)&scanhash_lbry_16way;
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gate->hash = (void*)&lbry_16way_hash;
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gate->optimizations = AVX2_OPT | AVX512_OPT;
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#elif defined (LBRY_8WAY)
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gate->scanhash = (void*)&scanhash_lbry_8way;
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gate->hash = (void*)&lbry_8way_hash;
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gate->optimizations = AVX2_OPT | AVX512_OPT;
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#elif defined (LBRY_4WAY)
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gate->scanhash = (void*)&scanhash_lbry_4way;
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gate->hash = (void*)&lbry_4way_hash;
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gate->optimizations = AVX2_OPT | AVX512_OPT;
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#else
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gate->scanhash = (void*)&scanhash_lbry;
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gate->hash = (void*)&lbry_hash;
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gate->optimizations = AVX2_OPT | AVX512_OPT | SHA_OPT;
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#endif
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gate->calc_network_diff = (void*)&lbry_calc_network_diff;
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gate->build_stratum_request = (void*)&lbry_le_build_stratum_request;
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// gate->build_block_header = (void*)&build_block_header;
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gate->build_extraheader = (void*)&lbry_build_extraheader;
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gate->ntime_index = LBRY_NTIME_INDEX;
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gate->nbits_index = LBRY_NBITS_INDEX;
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gate->nonce_index = LBRY_NONCE_INDEX;
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gate->get_work_data_size = (void*)&lbry_get_work_data_size;
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opt_target_factor = 256.0;
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return true;
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}
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