51 lines
2.1 KiB
C++
51 lines
2.1 KiB
C++
// Copyright (c) 2010 Satoshi Nakamoto
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// Copyright (c) 2009-2014 The Bitcoin Core developers
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// Copyright (c) 2014-2017 The Dash Core developers
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// Copyright (c) 2017-2017 The Pura Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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//Mining algorithm
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const arith_uint256 maxUint = UintToArith256(
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uint256S("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"));
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static void MineGenesis(CBlockHeader &genesisBlock, const uint256 &powLimit, bool noProduction) {
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if (noProduction) genesisBlock.nTime = std::time(0);
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genesisBlock.nNonce = 0;
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printf("NOTE: Genesis nTime = %u \n", genesisBlock.nTime);
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printf("WARN: Genesis nNonce (BLANK!) = %u \n", genesisBlock.nNonce);
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arith_uint256 besthash;
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memset(&besthash, 0xFF, 32);
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arith_uint256 hashTarget = UintToArith256(powLimit);
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printf("Target: %s\n", hashTarget.GetHex().c_str());
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arith_uint256 newhash = UintToArith256(genesisBlock.GetHash());
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while (newhash > hashTarget) {
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genesisBlock.nNonce++;
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if (genesisBlock.nNonce == 0) {
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printf("NONCE WRAPPED, incrementing time\n");
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++genesisBlock.nTime;
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}
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// If nothing found after trying for a while, print status
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if ((genesisBlock.nNonce & 0xffff) == 0)
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printf("nonce %08X: hash = %s \r",
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genesisBlock.nNonce, newhash.ToString().c_str(),
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hashTarget.ToString().c_str());
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if (newhash < besthash) {
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besthash = newhash;
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printf("New best: %s\n", newhash.GetHex().c_str());
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}
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newhash = UintToArith256(genesisBlock.GetHash());
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}
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printf("Genesis nTime = %u \n", genesisBlock.nTime);
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printf("Genesis nNonce = %u \n", genesisBlock.nNonce);
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printf("Genesis nBits: %08x\n", genesisBlock.nBits);
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printf("Genesis Hash = %s\n", newhash.ToString().c_str());
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printf("Genesis Hash Merkle Root = %s\n", genesisBlock.hashMerkleRoot.ToString().c_str());
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printf("Genesis Hash Merkle Root = %s\n", genesisBlock.hashMerkleRoot.ToString().c_str());
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}
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