// 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 vm import ( "github.com/ava-labs/coreth/params" ) type ( executionFunc func(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) gasFunc func(*EVM, *Contract, *Stack, *Memory, uint64) (uint64, error) // last parameter is the requested memory size as a uint64 // memorySizeFunc returns the required size, and whether the operation overflowed a uint64 memorySizeFunc func(*Stack) (size uint64, overflow bool) ) type operation struct { // execute is the operation function execute executionFunc constantGas uint64 dynamicGas gasFunc // minStack tells how many stack items are required minStack int // maxStack specifies the max length the stack can have for this operation // to not overflow the stack. maxStack int // memorySize returns the memory size required for the operation memorySize memorySizeFunc halts bool // indicates whether the operation should halt further execution jumps bool // indicates whether the program counter should not increment writes bool // determines whether this a state modifying operation reverts bool // determines whether the operation reverts state (implicitly halts) returns bool // determines whether the operations sets the return data content } var ( frontierInstructionSet = newFrontierInstructionSet() homesteadInstructionSet = newHomesteadInstructionSet() tangerineWhistleInstructionSet = newTangerineWhistleInstructionSet() spuriousDragonInstructionSet = newSpuriousDragonInstructionSet() byzantiumInstructionSet = newByzantiumInstructionSet() constantinopleInstructionSet = newConstantinopleInstructionSet() istanbulInstructionSet = newIstanbulInstructionSet() yoloV1InstructionSet = newYoloV1InstructionSet() ) // JumpTable contains the EVM opcodes supported at a given fork. type JumpTable [256]*operation func newYoloV1InstructionSet() JumpTable { instructionSet := newIstanbulInstructionSet() enable2315(&instructionSet) // Subroutines - https://eips.ethereum.org/EIPS/eip-2315 return instructionSet } // newIstanbulInstructionSet returns the frontier, homestead // byzantium, contantinople and petersburg instructions. func newIstanbulInstructionSet() JumpTable { instructionSet := newConstantinopleInstructionSet() enable1344(&instructionSet) // ChainID opcode - https://eips.ethereum.org/EIPS/eip-1344 enable1884(&instructionSet) // Reprice reader opcodes - https://eips.ethereum.org/EIPS/eip-1884 enable2200(&instructionSet) // Net metered SSTORE - https://eips.ethereum.org/EIPS/eip-2200 return instructionSet } // newConstantinopleInstructionSet returns the frontier, homestead // byzantium and contantinople instructions. func newConstantinopleInstructionSet() JumpTable { instructionSet := newByzantiumInstructionSet() instructionSet[SHL] = &operation{ execute: opSHL, constantGas: GasFastestStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), } instructionSet[SHR] = &operation{ execute: opSHR, constantGas: GasFastestStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), } instructionSet[SAR] = &operation{ execute: opSAR, constantGas: GasFastestStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), } instructionSet[EXTCODEHASH] = &operation{ execute: opExtCodeHash, constantGas: params.ExtcodeHashGasConstantinople, minStack: minStack(1, 1), maxStack: maxStack(1, 1), } instructionSet[CREATE2] = &operation{ execute: opCreate2, constantGas: params.Create2Gas, dynamicGas: gasCreate2, minStack: minStack(4, 1), maxStack: maxStack(4, 1), memorySize: memoryCreate2, writes: true, returns: true, } return instructionSet } // newByzantiumInstructionSet returns the frontier, homestead and // byzantium instructions. func newByzantiumInstructionSet() JumpTable { instructionSet := newSpuriousDragonInstructionSet() instructionSet[STATICCALL] = &operation{ execute: opStaticCall, constantGas: params.CallGasEIP150, dynamicGas: gasStaticCall, minStack: minStack(6, 1), maxStack: maxStack(6, 1), memorySize: memoryStaticCall, returns: true, } instructionSet[RETURNDATASIZE] = &operation{ execute: opReturnDataSize, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), } instructionSet[RETURNDATACOPY] = &operation{ execute: opReturnDataCopy, constantGas: GasFastestStep, dynamicGas: gasReturnDataCopy, minStack: minStack(3, 0), maxStack: maxStack(3, 0), memorySize: memoryReturnDataCopy, } instructionSet[REVERT] = &operation{ execute: opRevert, dynamicGas: gasRevert, minStack: minStack(2, 0), maxStack: maxStack(2, 0), memorySize: memoryRevert, reverts: true, returns: true, } return instructionSet } // EIP 158 a.k.a Spurious Dragon func newSpuriousDragonInstructionSet() JumpTable { instructionSet := newTangerineWhistleInstructionSet() instructionSet[EXP].dynamicGas = gasExpEIP158 return instructionSet } // EIP 150 a.k.a Tangerine Whistle func newTangerineWhistleInstructionSet() JumpTable { instructionSet := newHomesteadInstructionSet() instructionSet[BALANCE].constantGas = params.BalanceGasEIP150 instructionSet[EXTCODESIZE].constantGas = params.ExtcodeSizeGasEIP150 instructionSet[SLOAD].constantGas = params.SloadGasEIP150 instructionSet[EXTCODECOPY].constantGas = params.ExtcodeCopyBaseEIP150 instructionSet[CALL].constantGas = params.CallGasEIP150 instructionSet[CALLEX].constantGas = params.CallGasEIP150 instructionSet[CALLCODE].constantGas = params.CallGasEIP150 instructionSet[DELEGATECALL].constantGas = params.CallGasEIP150 return instructionSet } // newHomesteadInstructionSet returns the frontier and homestead // instructions that can be executed during the homestead phase. func newHomesteadInstructionSet() JumpTable { instructionSet := newFrontierInstructionSet() instructionSet[DELEGATECALL] = &operation{ execute: opDelegateCall, dynamicGas: gasDelegateCall, constantGas: params.CallGasFrontier, minStack: minStack(6, 1), maxStack: maxStack(6, 1), memorySize: memoryDelegateCall, returns: true, } return instructionSet } // newFrontierInstructionSet returns the frontier instructions // that can be executed during the frontier phase. func newFrontierInstructionSet() JumpTable { return JumpTable{ STOP: { execute: opStop, constantGas: 0, minStack: minStack(0, 0), maxStack: maxStack(0, 0), halts: true, }, ADD: { execute: opAdd, constantGas: GasFastestStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, MUL: { execute: opMul, constantGas: GasFastStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, SUB: { execute: opSub, constantGas: GasFastestStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, DIV: { execute: opDiv, constantGas: GasFastStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, SDIV: { execute: opSdiv, constantGas: GasFastStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, MOD: { execute: opMod, constantGas: GasFastStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, SMOD: { execute: opSmod, constantGas: GasFastStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, ADDMOD: { execute: opAddmod, constantGas: GasMidStep, minStack: minStack(3, 1), maxStack: maxStack(3, 1), }, MULMOD: { execute: opMulmod, constantGas: GasMidStep, minStack: minStack(3, 1), maxStack: maxStack(3, 1), }, EXP: { execute: opExp, dynamicGas: gasExpFrontier, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, SIGNEXTEND: { execute: opSignExtend, constantGas: GasFastStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, LT: { execute: opLt, constantGas: GasFastestStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, GT: { execute: opGt, constantGas: GasFastestStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, SLT: { execute: opSlt, constantGas: GasFastestStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, SGT: { execute: opSgt, constantGas: GasFastestStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, EQ: { execute: opEq, constantGas: GasFastestStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, ISZERO: { execute: opIszero, constantGas: GasFastestStep, minStack: minStack(1, 1), maxStack: maxStack(1, 1), }, AND: { execute: opAnd, constantGas: GasFastestStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, XOR: { execute: opXor, constantGas: GasFastestStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, OR: { execute: opOr, constantGas: GasFastestStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, NOT: { execute: opNot, constantGas: GasFastestStep, minStack: minStack(1, 1), maxStack: maxStack(1, 1), }, BYTE: { execute: opByte, constantGas: GasFastestStep, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, SHA3: { execute: opSha3, constantGas: params.Sha3Gas, dynamicGas: gasSha3, minStack: minStack(2, 1), maxStack: maxStack(2, 1), memorySize: memorySha3, }, ADDRESS: { execute: opAddress, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, BALANCE: { execute: opBalance, constantGas: params.BalanceGasFrontier, minStack: minStack(1, 1), maxStack: maxStack(1, 1), }, BALANCEMC: { execute: opBalanceMultiCoin, constantGas: params.BalanceGasFrontier, minStack: minStack(2, 1), maxStack: maxStack(2, 1), }, ORIGIN: { execute: opOrigin, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, CALLER: { execute: opCaller, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, CALLVALUE: { execute: opCallValue, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, CALLDATALOAD: { execute: opCallDataLoad, constantGas: GasFastestStep, minStack: minStack(1, 1), maxStack: maxStack(1, 1), }, CALLDATASIZE: { execute: opCallDataSize, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, CALLDATACOPY: { execute: opCallDataCopy, constantGas: GasFastestStep, dynamicGas: gasCallDataCopy, minStack: minStack(3, 0), maxStack: maxStack(3, 0), memorySize: memoryCallDataCopy, }, CODESIZE: { execute: opCodeSize, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, CODECOPY: { execute: opCodeCopy, constantGas: GasFastestStep, dynamicGas: gasCodeCopy, minStack: minStack(3, 0), maxStack: maxStack(3, 0), memorySize: memoryCodeCopy, }, GASPRICE: { execute: opGasprice, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, EXTCODESIZE: { execute: opExtCodeSize, constantGas: params.ExtcodeSizeGasFrontier, minStack: minStack(1, 1), maxStack: maxStack(1, 1), }, EXTCODECOPY: { execute: opExtCodeCopy, constantGas: params.ExtcodeCopyBaseFrontier, dynamicGas: gasExtCodeCopy, minStack: minStack(4, 0), maxStack: maxStack(4, 0), memorySize: memoryExtCodeCopy, }, BLOCKHASH: { execute: opBlockhash, constantGas: GasExtStep, minStack: minStack(1, 1), maxStack: maxStack(1, 1), }, COINBASE: { execute: opCoinbase, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, TIMESTAMP: { execute: opTimestamp, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, NUMBER: { execute: opNumber, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, DIFFICULTY: { execute: opDifficulty, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, GASLIMIT: { execute: opGasLimit, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, POP: { execute: opPop, constantGas: GasQuickStep, minStack: minStack(1, 0), maxStack: maxStack(1, 0), }, MLOAD: { execute: opMload, constantGas: GasFastestStep, dynamicGas: gasMLoad, minStack: minStack(1, 1), maxStack: maxStack(1, 1), memorySize: memoryMLoad, }, MSTORE: { execute: opMstore, constantGas: GasFastestStep, dynamicGas: gasMStore, minStack: minStack(2, 0), maxStack: maxStack(2, 0), memorySize: memoryMStore, }, MSTORE8: { execute: opMstore8, constantGas: GasFastestStep, dynamicGas: gasMStore8, memorySize: memoryMStore8, minStack: minStack(2, 0), maxStack: maxStack(2, 0), }, SLOAD: { execute: opSload, constantGas: params.SloadGasFrontier, minStack: minStack(1, 1), maxStack: maxStack(1, 1), }, SSTORE: { execute: opSstore, dynamicGas: gasSStore, minStack: minStack(2, 0), maxStack: maxStack(2, 0), writes: true, }, JUMP: { execute: opJump, constantGas: GasMidStep, minStack: minStack(1, 0), maxStack: maxStack(1, 0), jumps: true, }, JUMPI: { execute: opJumpi, constantGas: GasSlowStep, minStack: minStack(2, 0), maxStack: maxStack(2, 0), jumps: true, }, PC: { execute: opPc, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, MSIZE: { execute: opMsize, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, GAS: { execute: opGas, constantGas: GasQuickStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, JUMPDEST: { execute: opJumpdest, constantGas: params.JumpdestGas, minStack: minStack(0, 0), maxStack: maxStack(0, 0), }, //EMC: { // execute: opEMC, // constantGas: params.EMCGas, // minStack: minStack(0, 0), // maxStack: maxStack(0, 0), //}, PUSH1: { execute: opPush1, constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH2: { execute: makePush(2, 2), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH3: { execute: makePush(3, 3), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH4: { execute: makePush(4, 4), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH5: { execute: makePush(5, 5), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH6: { execute: makePush(6, 6), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH7: { execute: makePush(7, 7), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH8: { execute: makePush(8, 8), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH9: { execute: makePush(9, 9), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH10: { execute: makePush(10, 10), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH11: { execute: makePush(11, 11), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH12: { execute: makePush(12, 12), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH13: { execute: makePush(13, 13), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH14: { execute: makePush(14, 14), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH15: { execute: makePush(15, 15), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH16: { execute: makePush(16, 16), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH17: { execute: makePush(17, 17), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH18: { execute: makePush(18, 18), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH19: { execute: makePush(19, 19), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH20: { execute: makePush(20, 20), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH21: { execute: makePush(21, 21), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH22: { execute: makePush(22, 22), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH23: { execute: makePush(23, 23), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH24: { execute: makePush(24, 24), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH25: { execute: makePush(25, 25), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH26: { execute: makePush(26, 26), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH27: { execute: makePush(27, 27), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH28: { execute: makePush(28, 28), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH29: { execute: makePush(29, 29), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH30: { execute: makePush(30, 30), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH31: { execute: makePush(31, 31), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, PUSH32: { execute: makePush(32, 32), constantGas: GasFastestStep, minStack: minStack(0, 1), maxStack: maxStack(0, 1), }, DUP1: { execute: makeDup(1), constantGas: GasFastestStep, minStack: minDupStack(1), maxStack: maxDupStack(1), }, DUP2: { execute: makeDup(2), constantGas: GasFastestStep, minStack: minDupStack(2), maxStack: maxDupStack(2), }, DUP3: { execute: makeDup(3), constantGas: GasFastestStep, minStack: minDupStack(3), maxStack: maxDupStack(3), }, DUP4: { execute: makeDup(4), constantGas: GasFastestStep, minStack: minDupStack(4), maxStack: maxDupStack(4), }, DUP5: { execute: makeDup(5), constantGas: GasFastestStep, minStack: minDupStack(5), maxStack: maxDupStack(5), }, DUP6: { execute: makeDup(6), constantGas: GasFastestStep, minStack: minDupStack(6), maxStack: maxDupStack(6), }, DUP7: { execute: makeDup(7), constantGas: GasFastestStep, minStack: minDupStack(7), maxStack: maxDupStack(7), }, DUP8: { execute: makeDup(8), constantGas: GasFastestStep, minStack: minDupStack(8), maxStack: maxDupStack(8), }, DUP9: { execute: makeDup(9), constantGas: GasFastestStep, minStack: minDupStack(9), maxStack: maxDupStack(9), }, DUP10: { execute: makeDup(10), constantGas: GasFastestStep, minStack: minDupStack(10), maxStack: maxDupStack(10), }, DUP11: { execute: makeDup(11), constantGas: GasFastestStep, minStack: minDupStack(11), maxStack: maxDupStack(11), }, DUP12: { execute: makeDup(12), constantGas: GasFastestStep, minStack: minDupStack(12), maxStack: maxDupStack(12), }, DUP13: { execute: makeDup(13), constantGas: GasFastestStep, minStack: minDupStack(13), maxStack: maxDupStack(13), }, DUP14: { execute: makeDup(14), constantGas: GasFastestStep, minStack: minDupStack(14), maxStack: maxDupStack(14), }, DUP15: { execute: makeDup(15), constantGas: GasFastestStep, minStack: minDupStack(15), maxStack: maxDupStack(15), }, DUP16: { execute: makeDup(16), constantGas: GasFastestStep, minStack: minDupStack(16), maxStack: maxDupStack(16), }, SWAP1: { execute: makeSwap(1), constantGas: GasFastestStep, minStack: minSwapStack(2), maxStack: maxSwapStack(2), }, SWAP2: { execute: makeSwap(2), constantGas: GasFastestStep, minStack: minSwapStack(3), maxStack: maxSwapStack(3), }, SWAP3: { execute: makeSwap(3), constantGas: GasFastestStep, minStack: minSwapStack(4), maxStack: maxSwapStack(4), }, SWAP4: { execute: makeSwap(4), constantGas: GasFastestStep, minStack: minSwapStack(5), maxStack: maxSwapStack(5), }, SWAP5: { execute: makeSwap(5), constantGas: GasFastestStep, minStack: minSwapStack(6), maxStack: maxSwapStack(6), }, SWAP6: { execute: makeSwap(6), constantGas: GasFastestStep, minStack: minSwapStack(7), maxStack: maxSwapStack(7), }, SWAP7: { execute: makeSwap(7), constantGas: GasFastestStep, minStack: minSwapStack(8), maxStack: maxSwapStack(8), }, SWAP8: { execute: makeSwap(8), constantGas: GasFastestStep, minStack: minSwapStack(9), maxStack: maxSwapStack(9), }, SWAP9: { execute: makeSwap(9), constantGas: GasFastestStep, minStack: minSwapStack(10), maxStack: maxSwapStack(10), }, SWAP10: { execute: makeSwap(10), constantGas: GasFastestStep, minStack: minSwapStack(11), maxStack: maxSwapStack(11), }, SWAP11: { execute: makeSwap(11), constantGas: GasFastestStep, minStack: minSwapStack(12), maxStack: maxSwapStack(12), }, SWAP12: { execute: makeSwap(12), constantGas: GasFastestStep, minStack: minSwapStack(13), maxStack: maxSwapStack(13), }, SWAP13: { execute: makeSwap(13), constantGas: GasFastestStep, minStack: minSwapStack(14), maxStack: maxSwapStack(14), }, SWAP14: { execute: makeSwap(14), constantGas: GasFastestStep, minStack: minSwapStack(15), maxStack: maxSwapStack(15), }, SWAP15: { execute: makeSwap(15), constantGas: GasFastestStep, minStack: minSwapStack(16), maxStack: maxSwapStack(16), }, SWAP16: { execute: makeSwap(16), constantGas: GasFastestStep, minStack: minSwapStack(17), maxStack: maxSwapStack(17), }, LOG0: { execute: makeLog(0), dynamicGas: makeGasLog(0), minStack: minStack(2, 0), maxStack: maxStack(2, 0), memorySize: memoryLog, writes: true, }, LOG1: { execute: makeLog(1), dynamicGas: makeGasLog(1), minStack: minStack(3, 0), maxStack: maxStack(3, 0), memorySize: memoryLog, writes: true, }, LOG2: { execute: makeLog(2), dynamicGas: makeGasLog(2), minStack: minStack(4, 0), maxStack: maxStack(4, 0), memorySize: memoryLog, writes: true, }, LOG3: { execute: makeLog(3), dynamicGas: makeGasLog(3), minStack: minStack(5, 0), maxStack: maxStack(5, 0), memorySize: memoryLog, writes: true, }, LOG4: { execute: makeLog(4), dynamicGas: makeGasLog(4), minStack: minStack(6, 0), maxStack: maxStack(6, 0), memorySize: memoryLog, writes: true, }, CREATE: { execute: opCreate, constantGas: params.CreateGas, dynamicGas: gasCreate, minStack: minStack(3, 1), maxStack: maxStack(3, 1), memorySize: memoryCreate, writes: true, returns: true, }, CALL: { execute: opCall, constantGas: params.CallGasFrontier, dynamicGas: gasCall, minStack: minStack(7, 1), maxStack: maxStack(7, 1), memorySize: memoryCall, returns: true, }, CALLEX: { execute: opCallExpert, constantGas: params.CallGasFrontier, dynamicGas: gasCall, minStack: minStack(9, 1), maxStack: maxStack(9, 1), memorySize: memoryCallExpert, returns: true, }, CALLCODE: { execute: opCallCode, constantGas: params.CallGasFrontier, dynamicGas: gasCallCode, minStack: minStack(7, 1), maxStack: maxStack(7, 1), memorySize: memoryCall, returns: true, }, RETURN: { execute: opReturn, dynamicGas: gasReturn, minStack: minStack(2, 0), maxStack: maxStack(2, 0), memorySize: memoryReturn, halts: true, }, SELFDESTRUCT: { execute: opSuicide, dynamicGas: gasSelfdestruct, minStack: minStack(1, 0), maxStack: maxStack(1, 0), halts: true, writes: true, }, } }