beff5fa578
* params: add IsIstanbul to config + rules IstanbulBlock, used to determine if the config IsIstanbul, is currently left nil until an actual block is chosen. * params, core/vm: implement EIP-1108 Old gas costs for elliptic curve operations are given the PreIstanbul prefix, while current gas costs retain the unprefixed names. The actual precompile implementations are the same, so they are factored out into common functions that are called by the pre-Istanbul and current precompile structs. Finally, an Istanbul precompile list is added that references the new precompile structs, which in turn reference the new gas costs. * params: fix fork ordering, add missing chain compatibility check
127 lines
8.2 KiB
Go
127 lines
8.2 KiB
Go
// 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 (
|
|
GasLimitBoundDivisor uint64 = 1024 // The bound divisor of the gas limit, used in update calculations.
|
|
MinGasLimit uint64 = 5000 // Minimum the gas limit may ever be.
|
|
GenesisGasLimit uint64 = 4712388 // 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
|
|
|
|
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.
|
|
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.
|
|
|
|
// 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
|
|
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
|
|
ExtcodeHashGas uint64 = 400 // Cost of EXTCODEHASH (introduced in Constantinople)
|
|
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
|
|
ModExpQuadCoeffDiv uint64 = 20 // Divisor for the quadratic particle of the big int modular exponentiation
|
|
|
|
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
|
|
)
|
|
|
|
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.
|
|
)
|