github.com/aquanetwork/aquachain@v1.7.8/params/protocol_params.go (about) 1 // Copyright 2015 The aquachain Authors 2 // This file is part of the aquachain library. 3 // 4 // The aquachain 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 aquachain 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 aquachain library. If not, see <http://www.gnu.org/licenses/>. 16 17 package params 18 19 import "math/big" 20 21 var ( 22 MaxMoney = big.NewInt(42000000) // At block 42mil rewards will be fees-only 23 BlockReward *big.Int = big.NewInt(1e+18) // Block reward in wei for successfully mining a block 24 ) 25 26 var ( 27 TargetGasLimit uint64 = GenesisGasLimit // The artificial gas limit target 28 ) 29 30 const ( 31 GasLimitBoundDivisor uint64 = 1024 // The bound divisor of the gas limit, used in update calculations. 32 MinGasLimit uint64 = 5000 // Minimum the gas limit may ever be. 33 GenesisGasLimit uint64 = 4712388 // Gas limit of the Genesis block. 34 35 MaximumExtraDataSize uint64 = 32 // Maximum size extra data may be after Genesis. 36 ExpByteGas uint64 = 10 // Times ceil(log256(exponent)) for the EXP instruction. 37 SloadGas uint64 = 50 // Multiplied by the number of 32-byte words that are copied (round up) for any *COPY operation and added. 38 CallValueTransferGas uint64 = 9000 // Paid for CALL when the value transfer is non-zero. 39 CallNewAccountGas uint64 = 25000 // Paid for CALL when the destination address didn't exist prior. 40 TxGas uint64 = 21000 // Per transaction not creating a contract. NOTE: Not payable on data of calls between transactions. 41 TxGasContractCreation uint64 = 53000 // Per transaction that creates a contract. NOTE: Not payable on data of calls between transactions. 42 TxDataZeroGas uint64 = 4 // Per byte of data attached to a transaction that equals zero. NOTE: Not payable on data of calls between transactions. 43 QuadCoeffDiv uint64 = 512 // Divisor for the quadratic particle of the memory cost equation. 44 SstoreSetGas uint64 = 20000 // Once per SLOAD operation. 45 LogDataGas uint64 = 8 // Per byte in a LOG* operation's data. 46 CallStipend uint64 = 2300 // Free gas given at beginning of call. 47 48 Sha3Gas uint64 = 30 // Once per SHA3 operation. 49 Sha3WordGas uint64 = 6 // Once per word of the SHA3 operation's data. 50 SstoreResetGas uint64 = 5000 // Once per SSTORE operation if the zeroness changes from zero. 51 SstoreClearGas uint64 = 5000 // Once per SSTORE operation if the zeroness doesn't change. 52 SstoreRefundGas uint64 = 15000 // Once per SSTORE operation if the zeroness changes to zero. 53 JumpdestGas uint64 = 1 // Refunded gas, once per SSTORE operation if the zeroness changes to zero. 54 EpochDuration uint64 = 30000 // Duration between proof-of-work epochs. 55 CallGas uint64 = 40 // Once per CALL operation & message call transaction. 56 CreateDataGas uint64 = 200 // 57 CallCreateDepth uint64 = 1024 // Maximum depth of call/create stack. 58 ExpGas uint64 = 10 // Once per EXP instruction 59 LogGas uint64 = 375 // Per LOG* operation. 60 CopyGas uint64 = 3 // 61 StackLimit uint64 = 1024 // Maximum size of VM stack allowed. 62 TierStepGas uint64 = 0 // Once per operation, for a selection of them. 63 LogTopicGas uint64 = 375 // Multiplied by the * of the LOG*, per LOG transaction. e.g. LOG0 incurs 0 * c_txLogTopicGas, LOG4 incurs 4 * c_txLogTopicGas. 64 CreateGas uint64 = 32000 // Once per CREATE operation & contract-creation transaction. 65 SuicideRefundGas uint64 = 24000 // Refunded following a suicide operation. 66 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. 67 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. 68 69 MaxCodeSize = 24576 // Maximum bytecode to permit for a contract 70 71 // Precompiled contract gas prices 72 73 EcrecoverGas uint64 = 3000 // Elliptic curve sender recovery gas price 74 Sha256BaseGas uint64 = 60 // Base price for a SHA256 operation 75 Sha256PerWordGas uint64 = 12 // Per-word price for a SHA256 operation 76 Ripemd160BaseGas uint64 = 600 // Base price for a RIPEMD160 operation 77 Ripemd160PerWordGas uint64 = 120 // Per-word price for a RIPEMD160 operation 78 IdentityBaseGas uint64 = 15 // Base price for a data copy operation 79 IdentityPerWordGas uint64 = 3 // Per-work price for a data copy operation 80 ModExpQuadCoeffDiv uint64 = 20 // Divisor for the quadratic particle of the big int modular exponentiation 81 Bn256AddGas uint64 = 500 // Gas needed for an elliptic curve addition 82 Bn256ScalarMulGas uint64 = 40000 // Gas needed for an elliptic curve scalar multiplication 83 Bn256PairingBaseGas uint64 = 100000 // Base price for an elliptic curve pairing check 84 Bn256PairingPerPointGas uint64 = 80000 // Per-point price for an elliptic curve pairing check 85 ) 86 87 var ( 88 GenesisDifficulty = big.NewInt(99999999) // Difficulty of the Genesis block. 89 MinimumDifficultyGenesis = big.NewInt(99999999) // The minimum that the difficulty may ever be 90 MinimumDifficultyHF1 = big.NewInt(100001792) // The minimum that the difficulty may ever be (changed to a nice multiple of 2048). 91 MinimumDifficultyHF3 = big.NewInt(3095918580 * 10) // GPU Announcement 92 MinimumDifficultyHF8Testnet = big.NewInt(64) // Argon2id Announcement 93 MinimumDifficultyHF5Testnet = big.NewInt(4096) // Argon2id Announcement 94 MinimumDifficultyHF5 = big.NewInt(46039386) // Argon2id Announcement 95 MinimumDifficultyTestnet = big.NewInt(4096) // Argon2id Testnet 96 ) 97 98 var ( 99 DifficultyBoundDivisor = big.NewInt(2048) // The bound divisor of the difficulty, used in the update calculations. 100 DifficultyBoundDivisorHF5 = big.NewInt(16) // The bound divisor of the difficulty, used in the update calculations. 101 DifficultyBoundDivisorHF6 = big.NewInt(128) // The bound divisor of the difficulty, used in the update calculations. 102 DifficultyBoundDivisorHF8 = big.NewInt(1024) // The bound divisor of the difficulty, used in the update calculations. 103 DifficultyBoundDivisorHF8Testnet = big.NewInt(8) // The bound divisor of the difficulty, used in the update calculations. 104 DifficultyBoundDivisorHF9 = big.NewInt(2048) // The bound divisor of the difficulty, used in the update calculations. 105 ) 106 107 var ( 108 DurationLimit = big.NewInt(240) // The decision boundary on the blocktime duration used to determine difficulty direction. 109 DurationLimitHF6 = big.NewInt(180) // DurationLimitHF6 lowers the duration limit, keeping 240 second target 110 111 )