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-rw-r--r--src/chainparams.cpp4
-rw-r--r--src/chainparams.h3
-rw-r--r--src/consensus/params.h3
-rw-r--r--src/pow.cpp9
4 files changed, 9 insertions, 10 deletions
diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index 8633d51b2f..97312b366d 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -105,7 +105,7 @@ public:
consensus.nMajorityEnforceBlockUpgrade = 750;
consensus.nMajorityRejectBlockOutdated = 950;
consensus.nMajorityWindow = 1000;
- consensus.powLimit = ~arith_uint256(0) >> 32;
+ consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
consensus.nPowTargetSpacing = 10 * 60;
consensus.fPowAllowMinDifficultyBlocks = false;
@@ -245,7 +245,7 @@ public:
consensus.nMajorityEnforceBlockUpgrade = 750;
consensus.nMajorityRejectBlockOutdated = 950;
consensus.nMajorityWindow = 1000;
- consensus.powLimit = ~arith_uint256(0) >> 1;
+ consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
pchMessageStart[0] = 0xfa;
pchMessageStart[1] = 0xbf;
pchMessageStart[2] = 0xb5;
diff --git a/src/chainparams.h b/src/chainparams.h
index d0613beb45..e5e691cc53 100644
--- a/src/chainparams.h
+++ b/src/chainparams.h
@@ -6,7 +6,6 @@
#ifndef BITCOIN_CHAINPARAMS_H
#define BITCOIN_CHAINPARAMS_H
-#include "arith_uint256.h"
#include "chainparamsbase.h"
#include "checkpoints.h"
#include "consensus/params.h"
@@ -45,7 +44,7 @@ public:
const CMessageHeader::MessageStartChars& MessageStart() const { return pchMessageStart; }
const std::vector<unsigned char>& AlertKey() const { return vAlertPubKey; }
int GetDefaultPort() const { return nDefaultPort; }
- const arith_uint256& ProofOfWorkLimit() const { return consensus.powLimit; }
+ const uint256& ProofOfWorkLimit() const { return consensus.powLimit; }
int SubsidyHalvingInterval() const { return consensus.nSubsidyHalvingInterval; }
int EnforceBlockUpgradeMajority() const { return consensus.nMajorityEnforceBlockUpgrade; }
int RejectBlockOutdatedMajority() const { return consensus.nMajorityRejectBlockOutdated; }
diff --git a/src/consensus/params.h b/src/consensus/params.h
index c4cfa48c7e..35d447b712 100644
--- a/src/consensus/params.h
+++ b/src/consensus/params.h
@@ -6,7 +6,6 @@
#ifndef BITCOIN_CONSENSUS_CONSENSUS_PARAMS_H
#define BITCOIN_CONSENSUS_CONSENSUS_PARAMS_H
-#include "arith_uint256.h"
#include "uint256.h"
namespace Consensus {
@@ -21,7 +20,7 @@ struct Params {
int nMajorityRejectBlockOutdated;
int nMajorityWindow;
/** Proof of work parameters */
- arith_uint256 powLimit;
+ uint256 powLimit;
bool fPowAllowMinDifficultyBlocks;
int64_t nPowTargetSpacing;
int64_t nPowTargetTimespan;
diff --git a/src/pow.cpp b/src/pow.cpp
index cf7ac387f2..fc6ed4f3d1 100644
--- a/src/pow.cpp
+++ b/src/pow.cpp
@@ -13,7 +13,7 @@
unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock, const Consensus::Params& params)
{
- unsigned int nProofOfWorkLimit = params.powLimit.GetCompact();
+ unsigned int nProofOfWorkLimit = UintToArith256(params.powLimit).GetCompact();
// Genesis block
if (pindexLast == NULL)
@@ -61,6 +61,7 @@ unsigned int CalculateNextWorkRequired(const CBlockIndex* pindexLast, int64_t nF
nActualTimespan = params.nPowTargetTimespan*4;
// Retarget
+ const arith_uint256 bnPowLimit = UintToArith256(params.powLimit);
arith_uint256 bnNew;
arith_uint256 bnOld;
bnNew.SetCompact(pindexLast->nBits);
@@ -68,8 +69,8 @@ unsigned int CalculateNextWorkRequired(const CBlockIndex* pindexLast, int64_t nF
bnNew *= nActualTimespan;
bnNew /= params.nPowTargetTimespan;
- if (bnNew > params.powLimit)
- bnNew = params.powLimit;
+ if (bnNew > bnPowLimit)
+ bnNew = bnPowLimit;
/// debug print
LogPrintf("GetNextWorkRequired RETARGET\n");
@@ -89,7 +90,7 @@ bool CheckProofOfWork(uint256 hash, unsigned int nBits, const Consensus::Params&
bnTarget.SetCompact(nBits, &fNegative, &fOverflow);
// Check range
- if (fNegative || bnTarget == 0 || fOverflow || bnTarget > params.powLimit)
+ if (fNegative || bnTarget == 0 || fOverflow || bnTarget > UintToArith256(params.powLimit))
return error("CheckProofOfWork(): nBits below minimum work");
// Check proof of work matches claimed amount