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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 (
- // these are original values from upstream Geth, used in ethash consensus
- OriginalMinGasLimit uint64 = 5000 // The bound divisor of the gas limit, used in update calculations.
- OriginalGasLimitBoundDivisor uint64 = 1024 // Minimum the gas limit may ever be.
- // modified values for Quorum
- GasLimitBoundDivisor uint64 = 4096 // The bound divisor of the gas limit, used in update calculations.
- DefaultMinGasLimit uint64 = 700000000 // Minimum the gas limit may ever be.
- GenesisGasLimit uint64 = 800000000 // Gas limit of the Genesis block.
- MaximumExtraDataSize uint64 = 32 // 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.
- 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.
- SstoreSetGas uint64 = 20000 // Once per SLOAD operation.
- 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.
- NetSstoreNoopGas uint64 = 200 // Once per SSTORE operation if the value doesn't change.
- NetSstoreInitGas uint64 = 20000 // Once per SSTORE operation from clean zero.
- NetSstoreCleanGas uint64 = 5000 // Once per SSTORE operation from clean non-zero.
- NetSstoreDirtyGas uint64 = 200 // Once per SSTORE operation from dirty.
- NetSstoreClearRefund uint64 = 15000 // Once per SSTORE operation for clearing an originally existing storage slot
- NetSstoreResetRefund uint64 = 4800 // Once per SSTORE operation for resetting to the original non-zero value
- NetSstoreResetClearRefund uint64 = 19800 // Once per SSTORE operation for resetting to the original zero value
- SstoreSentryGasEIP2200 uint64 = 2300 // Minimum gas required to be present for an SSTORE call, not consumed
- SstoreSetGasEIP2200 uint64 = 20000 // Once per SSTORE operation from clean zero to non-zero
- SstoreResetGasEIP2200 uint64 = 5000 // Once per SSTORE operation from clean non-zero to something else
- SstoreClearsScheduleRefundEIP2200 uint64 = 15000 // Once per SSTORE operation for clearing an originally existing storage slot
- JumpdestGas uint64 = 1 // Once per JUMPDEST operation.
- EpochDuration uint64 = 30000 // Duration between proof-of-work epochs.
- 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.
- Create2Gas uint64 = 32000 // Once per CREATE2 operation
- SelfdestructRefundGas uint64 = 24000 // Refunded following a selfdestruct 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.
- 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.
- TxDataNonZeroGasEIP2028 uint64 = 16 // Per byte of non zero data attached to a transaction after EIP 2028 (part in Istanbul)
- TxAccessListAddressGas uint64 = 2400 // Per address specified in EIP 2930 access list
- TxAccessListStorageKeyGas uint64 = 1900 // Per storage key specified in EIP 2930 access list
- // These have been changed during the course of the chain
- CallGasFrontier uint64 = 40 // Once per CALL operation & message call transaction.
- CallGasEIP150 uint64 = 700 // Static portion of gas for CALL-derivates after EIP 150 (Tangerine)
- BalanceGasFrontier uint64 = 20 // The cost of a BALANCE operation
- BalanceGasEIP150 uint64 = 400 // The cost of a BALANCE operation after Tangerine
- BalanceGasEIP1884 uint64 = 700 // The cost of a BALANCE operation after EIP 1884 (part of Istanbul)
- ExtcodeSizeGasFrontier uint64 = 20 // Cost of EXTCODESIZE before EIP 150 (Tangerine)
- ExtcodeSizeGasEIP150 uint64 = 700 // Cost of EXTCODESIZE after EIP 150 (Tangerine)
- SloadGasFrontier uint64 = 50
- SloadGasEIP150 uint64 = 200
- SloadGasEIP1884 uint64 = 800 // Cost of SLOAD after EIP 1884 (part of Istanbul)
- SloadGasEIP2200 uint64 = 800 // Cost of SLOAD after EIP 2200 (part of Istanbul)
- ExtcodeHashGasConstantinople uint64 = 400 // Cost of EXTCODEHASH (introduced in Constantinople)
- ExtcodeHashGasEIP1884 uint64 = 700 // Cost of EXTCODEHASH after EIP 1884 (part in Istanbul)
- SelfdestructGasEIP150 uint64 = 5000 // Cost of SELFDESTRUCT post EIP 150 (Tangerine)
- // EXP has a dynamic portion depending on the size of the exponent
- ExpByteFrontier uint64 = 10 // was set to 10 in Frontier
- ExpByteEIP158 uint64 = 50 // was raised to 50 during Eip158 (Spurious Dragon)
- // Extcodecopy has a dynamic AND a static cost. This represents only the
- // static portion of the gas. It was changed during EIP 150 (Tangerine)
- ExtcodeCopyBaseFrontier uint64 = 20
- ExtcodeCopyBaseEIP150 uint64 = 700
- // CreateBySelfdestructGas is used when the refunded account is one that does
- // not exist. This logic is similar to call.
- // Introduced in Tangerine Whistle (Eip 150)
- CreateBySelfdestructGas uint64 = 25000
- 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
- Bn256AddGasByzantium uint64 = 500 // Byzantium gas needed for an elliptic curve addition
- Bn256AddGasIstanbul uint64 = 150 // Gas needed for an elliptic curve addition
- Bn256ScalarMulGasByzantium uint64 = 40000 // Byzantium gas needed for an elliptic curve scalar multiplication
- Bn256ScalarMulGasIstanbul uint64 = 6000 // Gas needed for an elliptic curve scalar multiplication
- Bn256PairingBaseGasByzantium uint64 = 100000 // Byzantium base price for an elliptic curve pairing check
- Bn256PairingBaseGasIstanbul uint64 = 45000 // Base price for an elliptic curve pairing check
- Bn256PairingPerPointGasByzantium uint64 = 80000 // Byzantium per-point price for an elliptic curve pairing check
- Bn256PairingPerPointGasIstanbul uint64 = 34000 // Per-point price for an elliptic curve pairing check
- Bls12381G1AddGas uint64 = 600 // Price for BLS12-381 elliptic curve G1 point addition
- Bls12381G1MulGas uint64 = 12000 // Price for BLS12-381 elliptic curve G1 point scalar multiplication
- Bls12381G2AddGas uint64 = 4500 // Price for BLS12-381 elliptic curve G2 point addition
- Bls12381G2MulGas uint64 = 55000 // Price for BLS12-381 elliptic curve G2 point scalar multiplication
- Bls12381PairingBaseGas uint64 = 115000 // Base gas price for BLS12-381 elliptic curve pairing check
- Bls12381PairingPerPairGas uint64 = 23000 // Per-point pair gas price for BLS12-381 elliptic curve pairing check
- Bls12381MapG1Gas uint64 = 5500 // Gas price for BLS12-381 mapping field element to G1 operation
- Bls12381MapG2Gas uint64 = 110000 // Gas price for BLS12-381 mapping field element to G2 operation
- QuorumMaximumExtraDataSize uint64 = 65 // Maximum size extra data may be after Genesis.
- // Quorum - payload for a transaction, the size of the buffer to 128kb to match the maximum allowed in chain config
- QuorumMaxPayloadBufferSize uint64 = 128
- )
- // Gas discount table for BLS12-381 G1 and G2 multi exponentiation operations
- var Bls12381MultiExpDiscountTable = [128]uint64{1200, 888, 764, 641, 594, 547, 500, 453, 438, 423, 408, 394, 379, 364, 349, 334, 330, 326, 322, 318, 314, 310, 306, 302, 298, 294, 289, 285, 281, 277, 273, 269, 268, 266, 265, 263, 262, 260, 259, 257, 256, 254, 253, 251, 250, 248, 247, 245, 244, 242, 241, 239, 238, 236, 235, 233, 232, 231, 229, 228, 226, 225, 223, 222, 221, 220, 219, 219, 218, 217, 216, 216, 215, 214, 213, 213, 212, 211, 211, 210, 209, 208, 208, 207, 206, 205, 205, 204, 203, 202, 202, 201, 200, 199, 199, 198, 197, 196, 196, 195, 194, 193, 193, 192, 191, 191, 190, 189, 188, 188, 187, 186, 185, 185, 184, 183, 182, 182, 181, 180, 179, 179, 178, 177, 176, 176, 175, 174}
- var (
- 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.
- )
- func GetMaximumExtraDataSize(isQuorum bool) uint64 {
- if isQuorum {
- return QuorumMaximumExtraDataSize
- } else {
- return MaximumExtraDataSize
- }
- }
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