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ctBinv

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This commit is contained in:
jl777
2019-08-07 07:30:49 -11:00
parent 49e9e0cfd3
commit 61791622e5
1 changed files with 20 additions and 2 deletions
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22
src/pow.cpp
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@@ -267,6 +267,20 @@ arith_uint256 zawy_ctB(arith_uint256 bnTarget,uint32_t solvetime)
return(bnTarget); return(bnTarget);
} }
arith_uint256 zawy_ctBinv(arith_uint256 bnTarget,uint32_t solvetime)
{
int64_t num; arith_uint256 origtarget = bnTarget;
num = ((int64_t)1000 * solvetime * solvetime * 1000) / (T * T * 784);
if ( num > 1 )
{
bnTarget /= arith_uint256(num);
bnTarget *= arith_uint256(1000);
if ( bnTarget > origtarget )
bnTarget = origtarget;
}
return(bnTarget);
}
unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock, const Consensus::Params& params) unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock, const Consensus::Params& params)
{ {
@@ -299,10 +313,11 @@ unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHead
// Find the first block in the averaging interval // Find the first block in the averaging interval
const CBlockIndex* pindexFirst = pindexLast; const CBlockIndex* pindexFirst = pindexLast;
arith_uint256 ct[64],bnTmp,bnPrev,bnTarget,bnTarget6,bnTarget12,bnTot {0}; arith_uint256 ct[64],ctinv[64],bnTmp,bnPrev,bnTarget,bnTarget6,bnTarget12,bnTot {0};
uint32_t nbits,blocktime,ts[sizeof(ct)/sizeof(*ct)]; int32_t zflags[sizeof(ct)/sizeof(*ct)],i,diff,height=0,mult = 0,tipdiff = 0; uint32_t nbits,blocktime,ts[sizeof(ct)/sizeof(*ct)]; int32_t zflags[sizeof(ct)/sizeof(*ct)],i,diff,height=0,mult = 0,tipdiff = 0;
memset(ts,0,sizeof(ts)); memset(ts,0,sizeof(ts));
memset(ct,0,sizeof(ct)); memset(ct,0,sizeof(ct));
memset(ctinv,0,sizeof(ctinv));
memset(zflags,0,sizeof(zflags)); memset(zflags,0,sizeof(zflags));
if ( pindexLast != 0 ) if ( pindexLast != 0 )
height = (int32_t)pindexLast->GetHeight() + 1; height = (int32_t)pindexLast->GetHeight() + 1;
@@ -321,7 +336,10 @@ unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHead
for (i=0; pindexFirst != 0 && i<(int32_t)(sizeof(ct)/sizeof(*ct))-1; i++) for (i=0; pindexFirst != 0 && i<(int32_t)(sizeof(ct)/sizeof(*ct))-1; i++)
{ {
if ( zflags[i] != 0 ) if ( zflags[i] != 0 )
{
ct[i] = zawy_ctB(ct[i],ts[i] - ts[i+1]); ct[i] = zawy_ctB(ct[i],ts[i] - ts[i+1]);
ctinv[i] = zawy_ctBinv(ct[i],ts[i] - ts[i+1]);
}
} }
} }
pindexFirst = pindexLast; pindexFirst = pindexLast;
@@ -343,7 +361,7 @@ unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHead
} }
} }
if ( zflags[i] != 0 ) if ( zflags[i] != 0 )
bnTmp = ct[i]; bnTmp = ctinv[i];
} }
bnTot += bnTmp; bnTot += bnTmp;
pindexFirst = pindexFirst->pprev; pindexFirst = pindexFirst->pprev;