github.com/morph-l2/go-ethereum@v1.9.7/params/protocol_params.go (about) 1 // Copyright 2015 The go-ethereum Authors 2 // This file is part of the go-ethereum library. 3 // 4 // The go-ethereum library is free software: you can redistribute it and/or modify 5 // it under the terms of the GNU Lesser General Public License as published by 6 // the Free Software Foundation, either version 3 of the License, or 7 // (at your option) any later version. 8 // 9 // The go-ethereum library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU Lesser General Public License for more details. 13 // 14 // You should have received a copy of the GNU Lesser General Public License 15 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. 16 17 package params 18 19 import "math/big" 20 21 const ( 22 GasLimitBoundDivisor uint64 = 1024 // The bound divisor of the gas limit, used in update calculations. 23 MinGasLimit uint64 = 5000 // Minimum the gas limit may ever be. 24 GenesisGasLimit uint64 = 4712388 // Gas limit of the Genesis block. 25 26 MaximumExtraDataSize uint64 = 32 // Maximum size extra data may be after Genesis. 27 ExpByteGas uint64 = 10 // Times ceil(log256(exponent)) for the EXP instruction. 28 SloadGas uint64 = 50 // Multiplied by the number of 32-byte words that are copied (round up) for any *COPY operation and added. 29 CallValueTransferGas uint64 = 9000 // Paid for CALL when the value transfer is non-zero. 30 CallNewAccountGas uint64 = 25000 // Paid for CALL when the destination address didn't exist prior. 31 TxGas uint64 = 21000 // Per transaction not creating a contract. NOTE: Not payable on data of calls between transactions. 32 TxGasContractCreation uint64 = 53000 // Per transaction that creates a contract. NOTE: Not payable on data of calls between transactions. 33 TxDataZeroGas uint64 = 4 // Per byte of data attached to a transaction that equals zero. NOTE: Not payable on data of calls between transactions. 34 QuadCoeffDiv uint64 = 512 // Divisor for the quadratic particle of the memory cost equation. 35 LogDataGas uint64 = 8 // Per byte in a LOG* operation's data. 36 CallStipend uint64 = 2300 // Free gas given at beginning of call. 37 38 Sha3Gas uint64 = 30 // Once per SHA3 operation. 39 Sha3WordGas uint64 = 6 // Once per word of the SHA3 operation's data. 40 41 SstoreSetGas uint64 = 20000 // Once per SLOAD operation. 42 SstoreResetGas uint64 = 5000 // Once per SSTORE operation if the zeroness changes from zero. 43 SstoreClearGas uint64 = 5000 // Once per SSTORE operation if the zeroness doesn't change. 44 SstoreRefundGas uint64 = 15000 // Once per SSTORE operation if the zeroness changes to zero. 45 46 NetSstoreNoopGas uint64 = 200 // Once per SSTORE operation if the value doesn't change. 47 NetSstoreInitGas uint64 = 20000 // Once per SSTORE operation from clean zero. 48 NetSstoreCleanGas uint64 = 5000 // Once per SSTORE operation from clean non-zero. 49 NetSstoreDirtyGas uint64 = 200 // Once per SSTORE operation from dirty. 50 51 NetSstoreClearRefund uint64 = 15000 // Once per SSTORE operation for clearing an originally existing storage slot 52 NetSstoreResetRefund uint64 = 4800 // Once per SSTORE operation for resetting to the original non-zero value 53 NetSstoreResetClearRefund uint64 = 19800 // Once per SSTORE operation for resetting to the original zero value 54 55 SstoreSentryGasEIP2200 uint64 = 2300 // Minimum gas required to be present for an SSTORE call, not consumed 56 SstoreNoopGasEIP2200 uint64 = 800 // Once per SSTORE operation if the value doesn't change. 57 SstoreDirtyGasEIP2200 uint64 = 800 // Once per SSTORE operation if a dirty value is changed. 58 SstoreInitGasEIP2200 uint64 = 20000 // Once per SSTORE operation from clean zero to non-zero 59 SstoreInitRefundEIP2200 uint64 = 19200 // Once per SSTORE operation for resetting to the original zero value 60 SstoreCleanGasEIP2200 uint64 = 5000 // Once per SSTORE operation from clean non-zero to something else 61 SstoreCleanRefundEIP2200 uint64 = 4200 // Once per SSTORE operation for resetting to the original non-zero value 62 SstoreClearRefundEIP2200 uint64 = 15000 // Once per SSTORE operation for clearing an originally existing storage slot 63 64 JumpdestGas uint64 = 1 // Once per JUMPDEST operation. 65 EpochDuration uint64 = 30000 // Duration between proof-of-work epochs. 66 67 CreateDataGas uint64 = 200 // 68 CallCreateDepth uint64 = 1024 // Maximum depth of call/create stack. 69 ExpGas uint64 = 10 // Once per EXP instruction 70 LogGas uint64 = 375 // Per LOG* operation. 71 CopyGas uint64 = 3 // 72 StackLimit uint64 = 1024 // Maximum size of VM stack allowed. 73 TierStepGas uint64 = 0 // Once per operation, for a selection of them. 74 LogTopicGas uint64 = 375 // Multiplied by the * of the LOG*, per LOG transaction. e.g. LOG0 incurs 0 * c_txLogTopicGas, LOG4 incurs 4 * c_txLogTopicGas. 75 CreateGas uint64 = 32000 // Once per CREATE operation & contract-creation transaction. 76 Create2Gas uint64 = 32000 // Once per CREATE2 operation 77 SelfdestructRefundGas uint64 = 24000 // Refunded following a selfdestruct operation. 78 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. 79 TxDataNonZeroGasFrontier 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. 80 TxDataNonZeroGasEIP2028 uint64 = 16 // Per byte of non zero data attached to a transaction after EIP 2028 (part in Istanbul) 81 82 // These have been changed during the course of the chain 83 CallGasFrontier uint64 = 40 // Once per CALL operation & message call transaction. 84 CallGasEIP150 uint64 = 700 // Static portion of gas for CALL-derivates after EIP 150 (Tangerine) 85 BalanceGasFrontier uint64 = 20 // The cost of a BALANCE operation 86 BalanceGasEIP150 uint64 = 400 // The cost of a BALANCE operation after Tangerine 87 BalanceGasEIP1884 uint64 = 700 // The cost of a BALANCE operation after EIP 1884 (part of Istanbul) 88 ExtcodeSizeGasFrontier uint64 = 20 // Cost of EXTCODESIZE before EIP 150 (Tangerine) 89 ExtcodeSizeGasEIP150 uint64 = 700 // Cost of EXTCODESIZE after EIP 150 (Tangerine) 90 SloadGasFrontier uint64 = 50 91 SloadGasEIP150 uint64 = 200 92 SloadGasEIP1884 uint64 = 800 // Cost of SLOAD after EIP 1884 (part of Istanbul) 93 ExtcodeHashGasConstantinople uint64 = 400 // Cost of EXTCODEHASH (introduced in Constantinople) 94 ExtcodeHashGasEIP1884 uint64 = 700 // Cost of EXTCODEHASH after EIP 1884 (part in Istanbul) 95 SelfdestructGasEIP150 uint64 = 5000 // Cost of SELFDESTRUCT post EIP 150 (Tangerine) 96 97 // EXP has a dynamic portion depending on the size of the exponent 98 ExpByteFrontier uint64 = 10 // was set to 10 in Frontier 99 ExpByteEIP158 uint64 = 50 // was raised to 50 during Eip158 (Spurious Dragon) 100 101 // Extcodecopy has a dynamic AND a static cost. This represents only the 102 // static portion of the gas. It was changed during EIP 150 (Tangerine) 103 ExtcodeCopyBaseFrontier uint64 = 20 104 ExtcodeCopyBaseEIP150 uint64 = 700 105 106 // CreateBySelfdestructGas is used when the refunded account is one that does 107 // not exist. This logic is similar to call. 108 // Introduced in Tangerine Whistle (Eip 150) 109 CreateBySelfdestructGas uint64 = 25000 110 111 MaxCodeSize = 24576 // Maximum bytecode to permit for a contract 112 113 // Precompiled contract gas prices 114 115 EcrecoverGas uint64 = 3000 // Elliptic curve sender recovery gas price 116 Sha256BaseGas uint64 = 60 // Base price for a SHA256 operation 117 Sha256PerWordGas uint64 = 12 // Per-word price for a SHA256 operation 118 Ripemd160BaseGas uint64 = 600 // Base price for a RIPEMD160 operation 119 Ripemd160PerWordGas uint64 = 120 // Per-word price for a RIPEMD160 operation 120 IdentityBaseGas uint64 = 15 // Base price for a data copy operation 121 IdentityPerWordGas uint64 = 3 // Per-work price for a data copy operation 122 ModExpQuadCoeffDiv uint64 = 20 // Divisor for the quadratic particle of the big int modular exponentiation 123 124 Bn256AddGasByzantium uint64 = 500 // Byzantium gas needed for an elliptic curve addition 125 Bn256AddGasIstanbul uint64 = 150 // Gas needed for an elliptic curve addition 126 Bn256ScalarMulGasByzantium uint64 = 40000 // Byzantium gas needed for an elliptic curve scalar multiplication 127 Bn256ScalarMulGasIstanbul uint64 = 6000 // Gas needed for an elliptic curve scalar multiplication 128 Bn256PairingBaseGasByzantium uint64 = 100000 // Byzantium base price for an elliptic curve pairing check 129 Bn256PairingBaseGasIstanbul uint64 = 45000 // Base price for an elliptic curve pairing check 130 Bn256PairingPerPointGasByzantium uint64 = 80000 // Byzantium per-point price for an elliptic curve pairing check 131 Bn256PairingPerPointGasIstanbul uint64 = 34000 // Per-point price for an elliptic curve pairing check 132 ) 133 134 var ( 135 DifficultyBoundDivisor = big.NewInt(2048) // The bound divisor of the difficulty, used in the update calculations. 136 GenesisDifficulty = big.NewInt(131072) // Difficulty of the Genesis block. 137 MinimumDifficulty = big.NewInt(131072) // The minimum that the difficulty may ever be. 138 DurationLimit = big.NewInt(13) // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not. 139 )