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protocol_params.go
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protocol_params.go
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package params
import "math/big"
// nolint
const (
// GasLimitBoundDivisor ...
GasLimitBoundDivisor uint64 = 1024 // The bound divisor of the gas limit, used in update calculations.
// MinGasLimit ...
MinGasLimit uint64 = 5000 // Minimum the gas limit may ever be.
// GenesisGasLimit ...
GenesisGasLimit uint64 = 4712388 // Gas limit of the Genesis block.
// TestGenesisGasLimit ..
TestGenesisGasLimit uint64 = 80000000 // A Gas limit in testing of the Genesis block (set same as current asadal)
// MaximumExtraDataSize ...
MaximumExtraDataSize uint64 = 32 // Maximum size extra data may be after Genesis.
// ExpByteGas ...
ExpByteGas uint64 = 10 // Times ceil(log256(exponent)) for the EXP instruction.
// SloadGas ...
SloadGas uint64 = 50 // Multiplied by the number of 32-byte words that are copied (round up) for any *COPY operation and added.
// CallValueTransferGas ...
CallValueTransferGas uint64 = 9000 // Paid for CALL when the value transfer is non-zero.
// CallNewAccountGas ...
CallNewAccountGas uint64 = 25000 // Paid for CALL when the destination address didn't exist prior.
// TxGas ...
TxGas uint64 = 21000 // Per transaction not creating a contract. NOTE: Not payable on data of calls between transactions.
// TxGasContractCreation ...
TxGasContractCreation uint64 = 53000 // Per transaction that creates a contract. NOTE: Not payable on data of calls between transactions.
// TxGasValidatorCreation ...
TxGasValidatorCreation uint64 = 5300000 // Per transaction that creates a new validator. NOTE: Not payable on data of calls between transactions.
// TxDataZeroGas ...
TxDataZeroGas uint64 = 4 // Per byte of data attached to a transaction that equals zero. NOTE: Not payable on data of calls between transactions.
// QuadCoeffDiv ...
QuadCoeffDiv uint64 = 512 // Divisor for the quadratic particle of the memory cost equation.
// LogDataGas ...
LogDataGas uint64 = 8 // Per byte in a LOG* operation's data.
// CallStipend ...
CallStipend uint64 = 2300 // Free gas given at beginning of call.
// Sha3Gas ...
Sha3Gas uint64 = 30 // Once per SHA3 operation.
// Sha3WordGas ...
Sha3WordGas uint64 = 6 // Once per word of the SHA3 operation's data.
// SstoreSetGas ...
SstoreSetGas uint64 = 20000 // Once per SLOAD operation.
// SstoreResetGas ...
SstoreResetGas uint64 = 5000 // Once per SSTORE operation if the zeroness changes from zero.
// SstoreClearGas ...
SstoreClearGas uint64 = 5000 // Once per SSTORE operation if the zeroness doesn't change.
// SstoreRefundGas ...
SstoreRefundGas uint64 = 15000 // Once per SSTORE operation if the zeroness changes to zero.
// NetSstoreNoopGas ...
NetSstoreNoopGas uint64 = 200 // Once per SSTORE operation if the value doesn't change.
// NetSstoreInitGas ...
NetSstoreInitGas uint64 = 20000 // Once per SSTORE operation from clean zero.
// NetSstoreCleanGas ...
NetSstoreCleanGas uint64 = 5000 // Once per SSTORE operation from clean non-zero.
// NetSstoreDirtyGas ...
NetSstoreDirtyGas uint64 = 200 // Once per SSTORE operation from dirty.
// NetSstoreClearRefund ...
NetSstoreClearRefund uint64 = 15000 // Once per SSTORE operation for clearing an originally existing storage slot
// NetSstoreResetRefund ...
NetSstoreResetRefund uint64 = 4800 // Once per SSTORE operation for resetting to the original non-zero value
// NetSstoreResetClearRefund ...
NetSstoreResetClearRefund uint64 = 19800 // Once per SSTORE operation for resetting to the original zero value
// SstoreSentryGasEIP2200 ...
SstoreSentryGasEIP2200 uint64 = 2300 // Minimum gas required to be present for an SSTORE call, not consumed
// SstoreNoopGasEIP2200 ...
SstoreNoopGasEIP2200 uint64 = 800 // Once per SSTORE operation if the value doesn't change.
// SstoreDirtyGasEIP2200 ...
SstoreDirtyGasEIP2200 uint64 = 800 // Once per SSTORE operation if a dirty value is changed.
// SstoreInitGasEIP2200 ...
SstoreInitGasEIP2200 uint64 = 20000 // Once per SSTORE operation from clean zero to non-zero
// SstoreInitRefundEIP2200 ...
SstoreInitRefundEIP2200 uint64 = 19200 // Once per SSTORE operation for resetting to the original zero value
// SstoreCleanGasEIP2200 ...
SstoreCleanGasEIP2200 uint64 = 5000 // Once per SSTORE operation from clean non-zero to something else
// SstoreCleanRefundEIP2200 ...
SstoreCleanRefundEIP2200 uint64 = 4200 // Once per SSTORE operation for resetting to the original non-zero value
// SstoreClearRefundEIP2200 ...
SstoreClearRefundEIP2200 uint64 = 15000 // Once per SSTORE operation for clearing an originally existing storage slot
// JumpdestGas ...
JumpdestGas uint64 = 1 // Refunded gas, once per SSTORE operation if the zeroness changes to zero.
// EpochDuration ...
EpochDuration uint64 = 30000 // Duration between proof-of-work epochs.
// CallGas ...
CallGas uint64 = 40 // Once per CALL operation & message call transaction.
// CreateDataGas ...
CreateDataGas uint64 = 200 //
// CallCreateDepth ...
CallCreateDepth uint64 = 1024 // Maximum depth of call/create stack.
// ExpGas ...
ExpGas uint64 = 10 // Once per EXP instruction
// LogGas ...
LogGas uint64 = 375 // Per LOG* operation.
// CopyGas ...
CopyGas uint64 = 3 //
// StackLimit ...
StackLimit uint64 = 1024 // Maximum size of VM stack allowed.
// TierStepGas ...
TierStepGas uint64 = 0 // Once per operation, for a selection of them.
// LogTopicGas ...
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 ...
CreateGas uint64 = 32000 // Once per CREATE operation & contract-creation transaction.
// Create2Gas ...
Create2Gas uint64 = 32000 // Once per CREATE2 operation
// SelfdestructRefundGas ...
SelfdestructRefundGas uint64 = 24000 // Refunded following a selfdestruct operation.
// MemoryGas ...
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 ...
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 ...
TxDataNonZeroGasEIP2028 uint64 = 16 // Per byte of non zero data attached to a transaction after EIP 2028 (part in Istanbul)
// 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)
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 ...
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
//SHA3-FIPS Precompiled contracts gas price esstimation as per ethereum yellow paper appendix G
Sha3FipsGas uint64 = 30 // Once per SHA3-256 operation.
Sha3FipsWordGas uint64 = 6 // Once per word of the SHA3-256 operation's data.
)
// nolint
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.
)