forked from tpruvot/ccminer
/
groestlcoin.cpp
132 lines (105 loc) · 3.75 KB
/
groestlcoin.cpp
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#include "uint256.h"
#include "sph/sph_groestl.h"
#include "cpuminer-config.h"
#include "miner.h"
#include <string.h>
#include <stdint.h>
#include "cuda_groestlcoin.h"
#include <openssl/sha.h>
#define SWAP32(x) \
((((x) << 24) & 0xff000000u) | (((x) << 8) & 0x00ff0000u) | \
(((x) >> 8) & 0x0000ff00u) | (((x) >> 24) & 0x000000ffu))
void sha256func(unsigned char *hash, const unsigned char *data, int len)
{
uint32_t S[16], T[16];
int i, r;
sha256_init(S);
for (r = len; r > -9; r -= 64) {
if (r < 64)
memset(T, 0, 64);
memcpy(T, data + len - r, r > 64 ? 64 : (r < 0 ? 0 : r));
if (r >= 0 && r < 64)
((unsigned char *)T)[r] = 0x80;
for (i = 0; i < 16; i++)
T[i] = be32dec(T + i);
if (r < 56)
T[15] = 8 * len;
sha256_transform(S, T, 0);
}
/*
memcpy(S + 8, sha256d_hash1 + 8, 32);
sha256_init(T);
sha256_transform(T, S, 0);
*/
for (i = 0; i < 8; i++)
be32enc((uint32_t *)hash + i, T[i]);
}
static void groestlhash(void *state, const void *input)
{
// Tryout GPU-groestl
sph_groestl512_context ctx_groestl[2];
static unsigned char pblank[1];
uint32_t mask = 8;
uint32_t zero = 0;
//these uint512 in the c++ source of the client are backed by an array of uint32
uint32_t hashA[16], hashB[16];
sph_groestl512_init(&ctx_groestl[0]);
sph_groestl512 (&ctx_groestl[0], input, 80); //6
sph_groestl512_close(&ctx_groestl[0], hashA); //7
sph_groestl512_init(&ctx_groestl[1]);
sph_groestl512 (&ctx_groestl[1], hashA, 64); //6
sph_groestl512_close(&ctx_groestl[1], hashB); //7
memcpy(state, hashB, 32);
}
extern bool opt_benchmark;
extern "C" int scanhash_groestlcoin(int thr_id, uint32_t *pdata, const uint32_t *ptarget,
uint32_t max_nonce, unsigned long *hashes_done)
{
if (opt_benchmark)
((uint32_t*)ptarget)[7] = 0x000000ff;
uint32_t start_nonce = pdata[19]++;
const uint32_t Htarg = ptarget[7];
const uint32_t throughPut = 4096 * 128;
//const uint32_t throughPut = 1;
uint32_t *outputHash = (uint32_t*)malloc(throughPut * 16 * sizeof(uint32_t));
// init
static bool init[8] = { false, false, false, false, false, false, false, false };
if(!init[thr_id])
{
groestlcoin_cpu_init(thr_id, throughPut);
init[thr_id] = true;
}
// Endian Drehung ist notwendig
uint32_t endiandata[32];
for (int kk=0; kk < 32; kk++)
be32enc(&endiandata[kk], pdata[kk]);
// Context mit dem Endian gedrehten Blockheader vorbereiten (Nonce wird später ersetzt)
groestlcoin_cpu_setBlock(thr_id, endiandata, (void*)ptarget);
do {
// GPU
uint32_t foundNounce = 0xFFFFFFFF;
groestlcoin_cpu_hash(thr_id, throughPut, pdata[19], outputHash, &foundNounce);
if(foundNounce < 0xffffffff)
{
uint32_t tmpHash[8];
endiandata[19] = SWAP32(foundNounce);
groestlhash(tmpHash, endiandata);
if (tmpHash[7] <= Htarg &&
fulltest(tmpHash, ptarget)) {
pdata[19] = foundNounce;
*hashes_done = foundNounce - start_nonce;
free(outputHash);
return true;
} else {
applog(LOG_INFO, "GPU #%d: result for nonce $%08X does not validate on CPU!", thr_id, foundNounce);
}
foundNounce = 0xffffffff;
}
if (pdata[19] + throughPut < pdata[19])
pdata[19] = max_nonce;
else pdata[19] += throughPut;
} while (pdata[19] < max_nonce && !work_restart[thr_id].restart);
*hashes_done = pdata[19] - start_nonce;
free(outputHash);
return 0;
}