static const uint32_t sha256_initial[8] = { 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 };
extern "C" int sha256_use_4way();
-extern "C" void sha256_init(uint32_t *state);
+#ifndef __i386__
extern "C" void sha256_transform(uint32_t *state, const uint32_t *block, int swap);
+#endif
+
extern "C" void sha256_init_4way(uint32_t *state);
extern "C" void sha256_transform_4way(uint32_t *state, const uint32_t *block, int swap);
bnTargetPerCoinDay.SetCompact(nBits);
uint256 nMaxTarget = (bnTargetPerCoinDay * bnValueIn * nStakeMaxAge / COIN / nOneDay).getuint256();
+#ifdef __i386__
+ SHA256_CTX ctx = workerCtx;
+
+ // Sha256 result buffer
+ uint32_t hashProofOfStake[8];
+
+ // Compute maximum possible target to filter out majority of obviously insufficient hashes
+ CBigNum bnTargetPerCoinDay;
+ bnTargetPerCoinDay.SetCompact(nBits);
+
+ uint256 nMaxTarget = (bnTargetPerCoinDay * bnValueIn * nStakeMaxAge / COIN / nOneDay).getuint256(),
+ *pnHashProofOfStake = (uint256 *)&hashProofOfStake;
+
+ // Search forward in time from the given timestamp
+ // Stopping search in case of shutting down
+ for (uint32_t nTimeTx=nIntervalBegin, nMaxTarget32 = nMaxTarget.Get32(7); nTimeTx<nIntervalEnd && !fShutdown; nTimeTx++)
+ {
+ // Complete first hashing iteration
+ uint256 hash1;
+ SHA256_Update(&ctx, (unsigned char*)&nTimeTx, 4);
+ SHA256_Final((unsigned char*)&hash1, &ctx);
+
+ // Restore context
+ ctx = workerCtx;
+
+ // Finally, calculate kernel hash
+ SHA256((unsigned char*)&hash1, sizeof(hashProofOfStake), (unsigned char*)&hashProofOfStake);
+
+ // Skip if hash doesn't satisfy the maximum target
+ if (hashProofOfStake[7] > nMaxTarget32)
+ continue;
+
+ CBigNum bnCoinDayWeight = bnValueIn * GetWeight((int64_t)nInputTxTime, (int64_t)nTimeTx) / COIN / nOneDay;
+ CBigNum bnTargetProofOfStake = bnCoinDayWeight * bnTargetPerCoinDay;
+
+ if (bnTargetProofOfStake >= CBigNum(*pnHashProofOfStake))
+ solutions.push_back(std::pair<uint256,uint32_t>(*pnHashProofOfStake, nTimeTx));
+ }
+#else
uint32_t block1[16] __attribute__((aligned(16)));
uint32_t block2[16] __attribute__((aligned(16)));
uint32_t candidate[8] __attribute__((aligned(16)));
if (bnTargetProofOfStake >= CBigNum(nHashProofOfStake))
solutions.push_back(std::pair<uint256,uint32_t>(nHashProofOfStake, nTimeTx));
}
+#endif
}
void Do()