int scanhash_scrypt(int thr_id, uint32_t *pdata,
unsigned char *scratchbuf, const uint32_t *ptarget,
uint32_t max_nonce, unsigned long *hashes_done)
{
uint32_t data[SCRYPT_MAX_WAYS * 20], hash[SCRYPT_MAX_WAYS * 8];
uint32_t midstate[8];
uint32_t n = pdata[19] - 1;
const uint32_t Htarg = ptarget[7];
int throughput = scrypt_best_throughput();
int i;
#ifdef HAVE_SHA256_4WAY
if (sha256_use_4way())
throughput *= 4;
#endif
for (i = 0; i < throughput; i++)
memcpy(data + i * 20, pdata, 80);
sha256_init(midstate);
sha256_transform(midstate, data, 0);
do {
for (i = 0; i < throughput; i++)
data[i * 20 + 19] = ++n;
#if defined(HAVE_SHA256_4WAY)
if (throughput == 4)
scrypt_1024_1_1_256_4way(data, hash, midstate, scratchbuf);
else
#endif
#if defined(HAVE_SCRYPT_3WAY) && defined(HAVE_SHA256_4WAY)
if (throughput == 12)
scrypt_1024_1_1_256_12way(data, hash, midstate, scratchbuf);
else
#endif
#if defined(HAVE_SCRYPT_3WAY)
if (throughput == 3)
scrypt_1024_1_1_256_3way(data, hash, midstate, scratchbuf);
else
#endif
scrypt_1024_1_1_256(data, hash, midstate, scratchbuf);
for (i = 0; i < throughput; i++) {
if (hash[i * 8 + 7] <= Htarg && fulltest(hash + i * 8, ptarget)) {
*hashes_done = n - pdata[19] + 1;
pdata[19] = data[i * 20 + 19];
return 1;
}
}
} while (n < max_nonce && !work_restart[thr_id].restart);
*hashes_done = n - pdata[19] + 1;
pdata[19] = n;
return 0;
}
unsigned int scanhash_scrypt(block_header *pdata,
uint32_t max_nonce, uint32_t &hash_count,
void *result, block_header *res_header, unsigned char Nfactor)
{
hash_count = 0;
block_header data = *pdata;
uint32_t hash[8];
unsigned char *hashc = (unsigned char *) &hash;
#ifdef SCRYPT_3WAY
block_header data2 = *pdata;
uint32_t hash2[8];
unsigned char *hashc2 = (unsigned char *) &hash2;
block_header data3 = *pdata;
uint32_t hash3[8];
unsigned char *hashc3 = (unsigned char *) &hash3;
int throughput = scrypt_best_throughput();
#endif
uint32_t n = 0;
while (true) {
data.nonce = n++;
#ifdef SCRYPT_3WAY
if (throughput >= 2 && n < max_nonce) {
data2.nonce = n++;
if(throughput >= 3)
{
data3.nonce = n++;
scrypt_3way(&data, &data2, &data3, 80, 80, 80, hash, hash2, hash3, scratchbuf);
hash_count += 3;
if (hashc3[31] == 0 && hashc3[30] == 0) {
memcpy(result, hash3, 32);
*res_header = data3;
return data3.nonce;
}
}
else
{
scrypt_2way(&data, &data2, 80, 80, hash, hash2, scratchbuf);
hash_count += 2;
}
if (hashc2[31] == 0 && hashc2[30] == 0) {
memcpy(result, hash2, 32);
return data2.nonce;
}
} else {
scrypt(&data, 80, hash, scratchbuf);
hash_count += 1;
}
#else
//scrypt(&data, 80, hash, scratchbuf);
scrypt((const unsigned char*)&data, 80,
(const unsigned char*)&data, 80,
Nfactor, 0, 0, (unsigned char*)hash, 32);
hash_count += 1;
#endif
if (hashc[31] == 0 && hashc[30] == 0) {
memcpy(result, hash, 32);
return data.nonce;
}
if (n >= max_nonce) {
hash_count = 0xffff + 1;
break;
}
}
return (unsigned int) -1;
}
bool BlockMine2(MinerClient &client, WorkBlob &work)
{
uint32_t data[SCRYPT_MAX_WAYS * 20];
uint32_t hash[SCRYPT_MAX_WAYS * 8];
uint32_t midstate[8];
unsigned char* ScratchPad = (unsigned char *)malloc(1024 * SCRYPT_MAX_WAYS * 128 + 63);
uint32_t shareCompare = work.ShareTarget.data[7];
//shareCompare = Helpers::BigEndian32Decode(&shareCompare);
uint32_t nonce = 0;
for (int i = 0; i < 20; i++) //Weird endian adjustment needed for pooler's code
{
((int*)work.Blob)[i] = Helpers::BigEndian32Decode(&((int*)work.Blob)[i]);
}
int throughput = scrypt_best_throughput();
if (sha256_use_4way())
throughput *= 4;
//throughput = 1;
for (int i = 0; i < throughput; i++)
{
memcpy(data + i * 20, work.Blob, 80);
}
sha256_init(midstate);
sha256_transform(midstate, data, 0);
for (uint32_t t = 0; t<32768; t++)
{
if (client.CurrentProtocol == Stratum)
{
if (client.CurrentJob.Id != work.Id)
{
free(ScratchPad);
return true;
}
}
if (!client.Connected || !client.LoggedIn)
{
free(ScratchPad);
return false;
}
for (uint32_t x = 0; x<4096; x++)
{
for (int i = 0; i < throughput; i++)
data[i * 20 + 19] = nonce++;
if (throughput == 4)
scrypt_1024_1_1_256_4way(data, hash, midstate, ScratchPad, 1024);
else
if (throughput == 12)
scrypt_1024_1_1_256_12way(data, hash, midstate, ScratchPad, 1024);
if (throughput == 24)
scrypt_1024_1_1_256_24way(data, hash, midstate, ScratchPad, 1024);
else
if (throughput == 3)
scrypt_1024_1_1_256_3way(data, hash, midstate, ScratchPad, 1024);
else
scrypt_1024_1_1_256(data, hash, midstate, ScratchPad, 1024);
for (int i = 0; i < throughput; i++) {
if (hash[i * 8 + 7] <= shareCompare) {
printf("We found a share submitting!\n");
if (client.CurrentProtocol == Stratum)
{
StratumShare share;
//Helpers::BigEndian32Encode(share.Nonce, data[i * 20 + 19]);
//Helpers::BigEndian32Encode(share.Ntime, *work.NtimePointer);
//Helpers::BigEndian32Encode(share.ENonce2, *work.ENonce2);
memcpy(share.Nonce, &(data[i * 20 + 19]), 4);
memcpy(share.Ntime, work.NtimePointer, 4);
memcpy(share.ENonce2, work.ENonce2, 4);
share.Id = work.Id;
StratumProtocol::AddShares( share, client);
}
}
}
client.TotalHashCount+=throughput;
}
}
free(ScratchPad);
return true;
}
