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protocol_params.go
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protocol_params.go
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// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package params
import "math/big"
const (
MaximumExtraDataSize uint64 = 97 // Maximum size extra data may be after Genesis.
ExpByteGas uint64 = 10 // Times ceil(log256(exponent)) for the EXP instruction.
SloadGas uint64 = 50 // Multiplied by the number of 32-byte words that are copied (round up) for any *COPY operation and added.
CallValueTransferGas uint64 = 9000 // Paid for CALL when the value transfer is non-zero.
CallNewAccountGas uint64 = 25000 // Paid for CALL when the destination address didn't exist prior.
TxGas uint64 = 21000 // Per transaction not creating a contract. NOTE: Not payable on data of calls between transactions.
TxGasContractCreation uint64 = 53000 // Per transaction that creates a contract. NOTE: Not payable on data of calls between transactions.
TxDataZeroGas uint64 = 4 // Per byte of data attached to a transaction that equals zero. NOTE: Not payable on data of calls between transactions.
QuadCoeffDiv uint64 = 512 // Divisor for the quadratic particle of the memory cost equation.
SstoreSetGas uint64 = 20000 // Once per SLOAD operation.
LogDataGas uint64 = 8 // Per byte in a LOG* operation's data.
CallStipend uint64 = 2300 // Free gas given at beginning of call.
Sha3Gas uint64 = 30 // Once per SHA3 operation.
Sha3WordGas uint64 = 6 // Once per word of the SHA3 operation's data.
SstoreResetGas uint64 = 5000 // Once per SSTORE operation if the zeroness changes from zero.
SstoreClearGas uint64 = 5000 // Once per SSTORE operation if the zeroness doesn't change.
SstoreRefundGas uint64 = 15000 // Once per SSTORE operation if the zeroness changes to zero.
JumpdestGas uint64 = 1 // Refunded gas, once per SSTORE operation if the zeroness changes to zero.
EpochDuration uint64 = 30000 // Duration between proof-of-work epochs.
CallGas uint64 = 40 // Once per CALL operation & message call transaction.
CreateDataGas uint64 = 200 //
CallCreateDepth uint64 = 1024 // Maximum depth of call/create stack.
ExpGas uint64 = 10 // Once per EXP instruction
LogGas uint64 = 375 // Per LOG* operation.
CopyGas uint64 = 3 //
StackLimit uint64 = 1024 // Maximum size of VM stack allowed.
TierStepGas uint64 = 0 // Once per operation, for a selection of them.
LogTopicGas uint64 = 375 // Multiplied by the * of the LOG*, per LOG transaction. e.g. LOG0 incurs 0 * c_txLogTopicGas, LOG4 incurs 4 * c_txLogTopicGas.
CreateGas uint64 = 32000 // Once per CREATE operation & contract-creation transaction.
SuicideRefundGas uint64 = 24000 // Refunded following a suicide operation.
MemoryGas uint64 = 3 // Times the address of the (highest referenced byte in memory + 1). NOTE: referencing happens on read, write and in instructions such as RETURN and CALL.
TxDataNonZeroGas uint64 = 68 // Per byte of data attached to a transaction that is not equal to zero. NOTE: Not payable on data of calls between transactions.
MaxCodeSize = 24576 // Maximum bytecode to permit for a contract
// Precompiled contract gas prices
EcrecoverGas uint64 = 3000 // Elliptic curve sender recovery gas price
Sha256BaseGas uint64 = 60 // Base price for a SHA256 operation
Sha256PerWordGas uint64 = 12 // Per-word price for a SHA256 operation
Ripemd160BaseGas uint64 = 600 // Base price for a RIPEMD160 operation
Ripemd160PerWordGas uint64 = 120 // Per-word price for a RIPEMD160 operation
IdentityBaseGas uint64 = 15 // Base price for a data copy operation
IdentityPerWordGas uint64 = 3 // Per-work price for a data copy operation
ModExpQuadCoeffDiv uint64 = 20 // Divisor for the quadratic particle of the big int modular exponentiation
Bn256AddGas uint64 = 500 // Gas needed for an elliptic curve addition
Bn256ScalarMulGas uint64 = 40000 // Gas needed for an elliptic curve scalar multiplication
Bn256PairingBaseGas uint64 = 100000 // Base price for an elliptic curve pairing check
Bn256PairingPerPointGas uint64 = 80000 // Per-point price for an elliptic curve pairing check
Bn256AddGasV2 uint64 = 50 // Gas needed for an elliptic curve addition
Bn256ScalarMulGasV2 uint64 = 100
RequiredGasPerMixPub uint64 = 4000 // ring signature mix difficulty gas
GetOTAMixSetMaxSize uint64 = 20 // Max number of mix ota set size from once getting
GasForSolEnhance uint64 = 100
S256AddGas uint64 = 50 // Gas needed for an elliptic curve addition
S256ScalarMulGas uint64 = 100
//SlsStgOnePerByteGas uint64 = 20 // per byte gas for SlsStgOnePerByteGas
SlsStgTwoPerByteGas uint64 = 20 // per byte gas for SlsStgOnePerByteGas
)
var (
GasLimitBoundDivisor = big.NewInt(1024) // The bound divisor of the gas limit, used in update calculations.
GasLimitBoundDivisorNew = big.NewInt(300) // The bound divisor of the gas limit, used in update calculations.
MinGasLimit = big.NewInt(5000) // Minimum the gas limit may ever be.
MaxGasLimit = big.NewInt(105000000)
GenesisGasLimit = big.NewInt(4712388) // Gas limit of the Genesis block.
NewTargeGasLimit = big.NewInt(10000000) // Gas limit raise to 1000w
TargetGasLimit = new(big.Int).Set(NewTargeGasLimit) // The artificial target
DifficultyBoundDivisor = big.NewInt(2048) // The bound divisor of the difficulty, used in the update calculations.
GenesisDifficulty = big.NewInt(131072) // Difficulty of the Genesis block.
MinimumDifficulty = big.NewInt(131072) // The minimum that the difficulty may ever be.
DurationLimit = big.NewInt(13) // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.
WanGasTimesFactor = big.NewInt(10)
//WanGasTimesFactor = big.NewInt(1)
)