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86 lines
2.4 KiB
86 lines
2.4 KiB
#include "uint256.h" |
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#include "sph/sph_fugue.h" |
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#include "cpuminer-config.h" |
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#include "miner.h" |
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#include <string.h> |
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#include <stdint.h> |
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#include <cuda_fugue256.h> |
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extern "C" void my_fugue256_init(void *cc); |
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extern "C" void my_fugue256(void *cc, const void *data, size_t len); |
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extern "C" void my_fugue256_close(void *cc, void *dst); |
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extern "C" void my_fugue256_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); |
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// vorbereitete Kontexte nach den ersten 80 Bytes |
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sph_fugue256_context ctx_fugue_const[8]; |
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#define SWAP32(x) \ |
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((((x) << 24) & 0xff000000u) | (((x) << 8) & 0x00ff0000u) | \ |
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(((x) >> 8) & 0x0000ff00u) | (((x) >> 24) & 0x000000ffu)) |
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extern "C" int scanhash_fugue256(int thr_id, uint32_t *pdata, const uint32_t *ptarget, |
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uint32_t max_nonce, unsigned long *hashes_done) |
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{ |
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uint32_t start_nonce = pdata[19]++; |
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const uint32_t Htarg = ptarget[7]; |
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const uint32_t throughPut = 4096 * 128; |
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// init |
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static bool init[8] = { false, false, false, false, false, false, false, false }; |
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if(!init[thr_id]) |
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{ |
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fugue256_cpu_init(thr_id, throughPut); |
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init[thr_id] = true; |
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} |
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// Endian Drehung ist notwendig |
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uint32_t endiandata[20]; |
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for (int kk=0; kk < 20; kk++) |
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be32enc(&endiandata[kk], pdata[kk]); |
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// Context mit dem Endian gedrehten Blockheader vorbereiten (Nonce wird später ersetzt) |
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fugue256_cpu_setBlock(thr_id, endiandata, (void*)ptarget); |
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do { |
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// GPU |
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uint32_t foundNounce = 0xFFFFFFFF; |
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fugue256_cpu_hash(thr_id, throughPut, pdata[19], NULL, &foundNounce); |
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if(foundNounce < 0xffffffff) |
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{ |
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uint32_t hash[8]; |
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endiandata[19] = SWAP32(foundNounce); |
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sph_fugue256_context ctx_fugue; |
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sph_fugue256_init(&ctx_fugue); |
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sph_fugue256 (&ctx_fugue, endiandata, 80); |
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sph_fugue256_close(&ctx_fugue, &hash); |
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if (hash[7] <= Htarg && fulltest(hash, ptarget)) |
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{ |
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pdata[19] = foundNounce; |
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*hashes_done = foundNounce - start_nonce; |
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return 1; |
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} else { |
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applog(LOG_INFO, "GPU #%d: result for nonce $%08X does not validate on CPU!", thr_id, foundNounce); |
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} |
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} |
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if (pdata[19] + throughPut < pdata[19]) |
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pdata[19] = max_nonce; |
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else pdata[19] += throughPut; |
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} while (pdata[19] < max_nonce && !work_restart[thr_id].restart); |
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*hashes_done = pdata[19] - start_nonce; |
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return 0; |
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} |
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void fugue256_hash(unsigned char* output, const unsigned char* input, int len) |
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{ |
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sph_fugue256_context ctx; |
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sph_fugue256_init(&ctx); |
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sph_fugue256(&ctx, input, len); |
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sph_fugue256_close(&ctx, (void *)output); |
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}
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