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;
}
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;
}
