mirror of
https://github.com/JayDDee/cpuminer-opt.git
synced 2025-09-17 23:44:27 +00:00
118 lines
2.5 KiB
C
118 lines
2.5 KiB
C
#include "pentablake-gate.h"
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#if !defined(PENTABLAKE_8WAY) && !defined(PENTABLAKE_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_blake.h"
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//#define DEBUG_ALGO
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extern void pentablakehash(void *output, const void *input)
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{
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unsigned char _ALIGN(32) hash[128];
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// same as uint32_t hashA[16], hashB[16];
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#define hashB hash+64
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sph_blake512_context ctx_blake;
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sph_blake512_init(&ctx_blake);
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sph_blake512(&ctx_blake, input, 80);
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sph_blake512_close(&ctx_blake, hash);
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sph_blake512_init(&ctx_blake);
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sph_blake512(&ctx_blake, hash, 64);
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sph_blake512_close(&ctx_blake, hashB);
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sph_blake512_init(&ctx_blake);
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sph_blake512(&ctx_blake, hashB, 64);
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sph_blake512_close(&ctx_blake, hash);
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sph_blake512_init(&ctx_blake);
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sph_blake512(&ctx_blake, hash, 64);
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sph_blake512_close(&ctx_blake, hashB);
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sph_blake512_init(&ctx_blake);
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sph_blake512(&ctx_blake, hashB, 64);
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sph_blake512_close(&ctx_blake, hash);
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memcpy(output, hash, 32);
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}
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int scanhash_pentablake( 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[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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int thr_id = mythr->id; // thr_id arg is deprecated
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uint32_t _ALIGN(32) hash64[8];
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uint32_t _ALIGN(32) 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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swab32_array( endiandata, pdata, 20 );
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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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pentablakehash(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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