mirror of
https://github.com/JayDDee/cpuminer-opt.git
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141 lines
3.4 KiB
C
141 lines
3.4 KiB
C
#include "sha256t-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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#include "sph_sha2.h"
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#include <openssl/sha.h>
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#if !defined(SHA256T_4WAY)
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#ifndef USE_SPH_SHA
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static __thread SHA256_CTX sha256t_ctx __attribute__ ((aligned (64)));
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#else
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static __thread sph_sha256_context sha256t_ctx __attribute__ ((aligned (64)));
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#endif
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void sha256t_midstate( const void* input )
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{
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#ifndef USE_SPH_SHA
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SHA256_Init( &sha256t_ctx );
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SHA256_Update( &sha256t_ctx, input, 64 );
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#else
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sph_sha256_init( &sha256t_ctx );
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sph_sha256( &sha256t_ctx, input, 64 );
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#endif
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}
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void sha256t_hash( void* output, const void* input )
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{
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uint32_t _ALIGN(64) hashA[16];
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const int midlen = 64; // bytes
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const int tail = 80 - midlen; // 16
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#ifndef USE_SPH_SHA
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SHA256_CTX ctx_sha256 __attribute__ ((aligned (64)));
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memcpy( &ctx_sha256, &sha256t_ctx, sizeof sha256t_ctx );
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SHA256_Update( &ctx_sha256, input + midlen, tail );
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SHA256_Final( (unsigned char*)hashA, &ctx_sha256 );
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SHA256_Init( &ctx_sha256 );
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SHA256_Update( &ctx_sha256, hashA, 32 );
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SHA256_Final( (unsigned char*)hashA, &ctx_sha256 );
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SHA256_Init( &ctx_sha256 );
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SHA256_Update( &ctx_sha256, hashA, 32 );
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SHA256_Final( (unsigned char*)hashA, &ctx_sha256 );
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#else
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sph_sha256_context ctx_sha256 __attribute__ ((aligned (64)));
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memcpy( &ctx_sha256, &sha256t_mid, sizeof sha256t_mid );
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sph_sha256( &ctx_sha256, input + midlen, tail );
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sph_sha256_close( &ctx_sha256, hashA );
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sph_sha256_init( &ctx_sha256 );
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sph_sha256( &ctx_sha256, hashA, 32 );
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sph_sha256_close( &ctx_sha256, hashA );
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sph_sha256_init( &ctx_sha256 );
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sph_sha256( &ctx_sha256, hashA, 32 );
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sph_sha256_close( &ctx_sha256, hashA );
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#endif
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memcpy( output, hashA, 32 );
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}
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int scanhash_sha256t(int thr_id, struct work *work,
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uint32_t max_nonce, uint64_t *hashes_done)
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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[19] - 1;
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const uint32_t first_nonce = pdata[19];
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const uint32_t Htarg = ptarget[7];
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#ifdef _MSC_VER
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uint32_t __declspec(align(32)) hash64[8];
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#else
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uint32_t hash64[8] __attribute__((aligned(32)));
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#endif
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uint32_t endiandata[32];
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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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for (int k = 0; k < 19; k++)
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be32enc(&endiandata[k], pdata[k]);
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sha256t_midstate( endiandata );
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#ifdef DEBUG_ALGO
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if (Htarg != 0)
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printf("[%d] Htarg=%X\n", thr_id, Htarg);
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#endif
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for (int m=0; m < 6; 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[19] = ++n;
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be32enc(&endiandata[19], n);
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sha256t_hash( hash64, endiandata );
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#ifndef DEBUG_ALGO
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if ((!(hash64[7] & mask)) && fulltest(hash64, ptarget)) {
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*hashes_done = n - first_nonce + 1;
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return true;
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}
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#else
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if (!(n % 0x1000) && !thr_id) printf(".");
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if (!(hash64[7] & mask)) {
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printf("[%d]",thr_id);
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if (fulltest(hash64, ptarget)) {
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*hashes_done = n - first_nonce + 1;
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return true;
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}
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}
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#endif
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} while (n < max_nonce && !work_restart[thr_id].restart);
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// see blake.c if else to understand the loop on htmax => mask
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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[19] = n;
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return 0;
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}
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#endif
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