mirror of
https://github.com/JayDDee/cpuminer-opt.git
synced 2025-09-17 23:44:27 +00:00
100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
#include "lbry-gate.h"
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#if !defined(LBRY_16WAY) && !defined(LBRY_8WAY) && !defined(LBRY_4WAY)
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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 "sph_ripemd.h"
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#include "algo/sha/sha256-hash.h"
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void lbry_hash(void* output, const void* input)
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{
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sha256_context ctx_sha256 __attribute__ ((aligned (64)));
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sph_sha512_context ctx_sha512 __attribute__ ((aligned (64)));
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sph_ripemd160_context ctx_ripemd __attribute__ ((aligned (64)));
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uint32_t _ALIGN(64) hashA[16];
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uint32_t _ALIGN(64) hashB[16];
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uint32_t _ALIGN(64) hashC[16];
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sha256_full( hashA, input, 112 );
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sha256_full( hashA, hashA, 32 );
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sph_sha512_init( &ctx_sha512 );
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sph_sha512( &ctx_sha512, hashA, 32 );
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sph_sha512_close( &ctx_sha512, hashA );
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sph_ripemd160_init( &ctx_ripemd );
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sph_ripemd160 ( &ctx_ripemd, hashA, 32 );
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sph_ripemd160_close( &ctx_ripemd, hashB );
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sph_ripemd160_init( &ctx_ripemd );
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sph_ripemd160 ( &ctx_ripemd, hashA+8, 32 );
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sph_ripemd160_close( &ctx_ripemd, hashC );
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sha256_ctx_init( &ctx_sha256 );
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sha256_update( &ctx_sha256, hashB, 20 );
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sha256_update( &ctx_sha256, hashC, 20 );
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sha256_final( &ctx_sha256, hashA );
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sha256_full( hashA, hashA, 32 );
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memcpy( output, hashA, 32 );
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}
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int scanhash_lbry( struct work *work, uint32_t max_nonce,
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uint64_t *hashes_done, struct thr_info *mythr)
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{
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uint32_t *pdata = work->data;
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uint32_t *ptarget = work->target;
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uint32_t n = pdata[27] - 1;
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const uint32_t first_nonce = pdata[27];
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const uint32_t Htarg = ptarget[7];
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int thr_id = mythr->id; // thr_id arg is deprecated
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uint32_t hash64[8] __attribute__((aligned(64)));
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uint32_t endiandata[32] __attribute__ ((aligned (64)));
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uint64_t htmax[] = {
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0,
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0xF,
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0xFF,
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0xFFF,
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0xFFFF,
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0x10000000
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};
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uint32_t masks[] = {
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0xFFFFFFFF,
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0xFFFFFFF0,
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0xFFFFFF00,
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0xFFFFF000,
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0xFFFF0000,
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0
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};
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// we need bigendian data...
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swab32_array( endiandata, pdata, 32 );
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for (int m=0; m < sizeof(masks); m++) {
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if (Htarg <= htmax[m]) {
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uint32_t mask = masks[m];
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do {
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pdata[27] = ++n;
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be32enc(&endiandata[27], n);
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lbry_hash(hash64, &endiandata);
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if ((!(hash64[7] & mask)) && fulltest(hash64, ptarget)) {
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pdata[27] = n;
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submit_solution( work, hash64, mythr );
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}
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} while ( (n < max_nonce -8) && !work_restart[thr_id].restart);
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break;
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}
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}
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*hashes_done = n - first_nonce + 1;
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pdata[27] = n;
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return 0;
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}
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#endif
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