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Zawys new algo

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1) FTL 4 seconds
2) MTP from 11 -> 1
3) must calc MAX(diff[I]) for past 11 blocks
4) bnTarget *= mult*mult
5) bnTarget.nBits -> onchain
This commit is contained in:
jl777
2019-08-01 09:14:07 -11:00
parent b6507d34de
commit 23ca86df3a
5 changed files with 51 additions and 24 deletions
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31
src/pow.cpp
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@@ -73,11 +73,19 @@ unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHead
// Find the first block in the averaging interval
const CBlockIndex* pindexFirst = pindexLast;
arith_uint256 bnTot {0};
for (int i = 0; pindexFirst && i < params.nPowAveragingWindow; i++) {
arith_uint256 bnTarget,bnTot {0};
uint32_t nbits; int64_t diff,mult = pblock->nTime - pindexFirst->nTime - 7 * ASSETCHAINS_BLOCKTIME;
for (int i = 0; pindexFirst && i < params.nPowAveragingWindow; i++)
{
arith_uint256 bnTmp;
bnTmp.SetCompact(pindexFirst->nBits);
bnTot += bnTmp;
if ( ASSETCHAINS_ADAPTIVEPOW > 0 && i < 12 )
{
diff = pblock->nTime - pindexFirst->nTime - (8+i)*ASSETCHAINS_BLOCKTIME;
if ( diff > mult )
mult = diff;
}
pindexFirst = pindexFirst->pprev;
}
@@ -85,9 +93,18 @@ unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHead
if (pindexFirst == NULL)
return nProofOfWorkLimit;
arith_uint256 bnAvg {bnTot / params.nPowAveragingWindow};
return CalculateNextWorkRequired(bnAvg, pindexLast->GetMedianTimePast(), pindexFirst->GetMedianTimePast(), params);
bool fNegative,fOverflow; arith_uint256 easy,origtarget,bnAvg {bnTot / params.nPowAveragingWindow};
nbits = CalculateNextWorkRequired(bnAvg, pindexLast->GetMedianTimePast(), pindexFirst->GetMedianTimePast(), params);
if ( ASSETCHAINS_ADAPTIVEPOW > 0 && mult > 1 )
{
origtarget = bnTarget = arith_uint256().SetCompact(nbits);
bnTarget = bnTarget * arith_uint256(mult * mult);
easy.SetCompact(KOMODO_MINDIFF_NBITS,&fNegative,&fOverflow);
if ( bnTarget < origtarget || bnTarget > easy )
bnTarget = easy;
nbits = bnTarget.GetCompact();
}
return(nbits);
}
unsigned int CalculateNextWorkRequired(arith_uint256 bnAvg,
@@ -453,8 +470,8 @@ bool CheckProofOfWork(const CBlockHeader &blkHeader, uint8_t *pubkey33, int32_t
arith_uint256 bnMaxPoSdiff;
bnTarget.SetCompact(KOMODO_MINDIFF_NBITS,&fNegative,&fOverflow);
}
else if ( ASSETCHAINS_ADAPTIVEPOW > 0 && ASSETCHAINS_STAKED == 0 )
bnTarget = komodo_adaptivepow_target(height,bnTarget,blkHeader.nTime);
//else if ( ASSETCHAINS_ADAPTIVEPOW > 0 && ASSETCHAINS_STAKED == 0 )
// bnTarget = komodo_adaptivepow_target(height,bnTarget,blkHeader.nTime);
// Check proof of work matches claimed amount
if ( UintToArith256(hash = blkHeader.GetHash()) > bnTarget && !blkHeader.IsVerusPOSBlock() )
{