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opcodes.go
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opcodes.go
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//此源码被清华学神尹成大魔王专业翻译分析并修改
//尹成QQ77025077
//尹成微信18510341407
//尹成所在QQ群721929980
//尹成邮箱 yinc13@mails.tsinghua.edu.cn
//尹成毕业于清华大学,微软区块链领域全球最有价值专家
//https://mvp.microsoft.com/zh-cn/PublicProfile/4033620
//版权所有2014 Go Ethereum作者
//此文件是Go以太坊库的一部分。
//
//Go-Ethereum库是免费软件:您可以重新分发它和/或修改
//根据GNU发布的较低通用公共许可证的条款
//自由软件基金会,或者许可证的第3版,或者
//(由您选择)任何更高版本。
//
//Go以太坊图书馆的发行目的是希望它会有用,
//但没有任何保证;甚至没有
//适销性或特定用途的适用性。见
//GNU较低的通用公共许可证,了解更多详细信息。
//
//你应该收到一份GNU较低级别的公共许可证副本
//以及Go以太坊图书馆。如果没有,请参见<http://www.gnu.org/licenses/>。
package vm
import (
"fmt"
)
//操作码是EVM操作码
type OpCode byte
//is push指定操作码是否为推送操作码。
func (op OpCode) IsPush() bool {
switch op {
case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32:
return true
}
return false
}
//IsStaticJump指定操作码是否为跳转。
func (op OpCode) IsStaticJump() bool {
return op == JUMP
}
//0x0范围-算术运算。
const (
STOP OpCode = iota
ADD
MUL
SUB
DIV
SDIV
MOD
SMOD
ADDMOD
MULMOD
EXP
SIGNEXTEND
)
//0x10范围-比较操作。
const (
LT OpCode = iota + 0x10
GT
SLT
SGT
EQ
ISZERO
AND
OR
XOR
NOT
BYTE
SHL
SHR
SAR
SHA3 = 0x20
)
//0x30范围-关闭状态。
const (
ADDRESS OpCode = 0x30 + iota
BALANCE
ORIGIN
CALLER
CALLVALUE
CALLDATALOAD
CALLDATASIZE
CALLDATACOPY
CODESIZE
CODECOPY
GASPRICE
EXTCODESIZE
EXTCODECOPY
RETURNDATASIZE
RETURNDATACOPY
EXTCODEHASH
)
//0x40范围-块操作。
const (
BLOCKHASH OpCode = 0x40 + iota
COINBASE
TIMESTAMP
NUMBER
DIFFICULTY
GASLIMIT
)
//0x50范围-“存储”和执行。
const (
POP OpCode = 0x50 + iota
MLOAD
MSTORE
MSTORE8
SLOAD
SSTORE
JUMP
JUMPI
PC
MSIZE
GAS
JUMPDEST
)
//0x60范围。
const (
PUSH1 OpCode = 0x60 + iota
PUSH2
PUSH3
PUSH4
PUSH5
PUSH6
PUSH7
PUSH8
PUSH9
PUSH10
PUSH11
PUSH12
PUSH13
PUSH14
PUSH15
PUSH16
PUSH17
PUSH18
PUSH19
PUSH20
PUSH21
PUSH22
PUSH23
PUSH24
PUSH25
PUSH26
PUSH27
PUSH28
PUSH29
PUSH30
PUSH31
PUSH32
DUP1
DUP2
DUP3
DUP4
DUP5
DUP6
DUP7
DUP8
DUP9
DUP10
DUP11
DUP12
DUP13
DUP14
DUP15
DUP16
SWAP1
SWAP2
SWAP3
SWAP4
SWAP5
SWAP6
SWAP7
SWAP8
SWAP9
SWAP10
SWAP11
SWAP12
SWAP13
SWAP14
SWAP15
SWAP16
)
//0XA0范围-记录操作。
const (
LOG0 OpCode = 0xa0 + iota
LOG1
LOG2
LOG3
LOG4
)
//用于解析的非官方操作码。
const (
PUSH OpCode = 0xb0 + iota
DUP
SWAP
)
//0xF0范围-关闭。
const (
CREATE OpCode = 0xf0 + iota
CALL
CALLCODE
RETURN
DELEGATECALL
CREATE2
STATICCALL = 0xfa
REVERT = 0xfd
SELFDESTRUCT = 0xff
)
//由于操作码不是全部正常,我们不能使用常规切片。
var opCodeToString = map[OpCode]string{
//0x0范围-算术运算。
STOP: "STOP",
ADD: "ADD",
MUL: "MUL",
SUB: "SUB",
DIV: "DIV",
SDIV: "SDIV",
MOD: "MOD",
SMOD: "SMOD",
EXP: "EXP",
NOT: "NOT",
LT: "LT",
GT: "GT",
SLT: "SLT",
SGT: "SGT",
EQ: "EQ",
ISZERO: "ISZERO",
SIGNEXTEND: "SIGNEXTEND",
//0x10范围-位操作。
AND: "AND",
OR: "OR",
XOR: "XOR",
BYTE: "BYTE",
SHL: "SHL",
SHR: "SHR",
SAR: "SAR",
ADDMOD: "ADDMOD",
MULMOD: "MULMOD",
//0x20范围-加密。
SHA3: "SHA3",
//0x30范围-关闭状态。
ADDRESS: "ADDRESS",
BALANCE: "BALANCE",
ORIGIN: "ORIGIN",
CALLER: "CALLER",
CALLVALUE: "CALLVALUE",
CALLDATALOAD: "CALLDATALOAD",
CALLDATASIZE: "CALLDATASIZE",
CALLDATACOPY: "CALLDATACOPY",
CODESIZE: "CODESIZE",
CODECOPY: "CODECOPY",
GASPRICE: "GASPRICE",
EXTCODESIZE: "EXTCODESIZE",
EXTCODECOPY: "EXTCODECOPY",
RETURNDATASIZE: "RETURNDATASIZE",
RETURNDATACOPY: "RETURNDATACOPY",
EXTCODEHASH: "EXTCODEHASH",
//0x40范围-块操作。
BLOCKHASH: "BLOCKHASH",
COINBASE: "COINBASE",
TIMESTAMP: "TIMESTAMP",
NUMBER: "NUMBER",
DIFFICULTY: "DIFFICULTY",
GASLIMIT: "GASLIMIT",
//0x50范围-“存储”和执行。
POP: "POP",
//DUP:“DUP”,
//swap:“交换”,
MLOAD: "MLOAD",
MSTORE: "MSTORE",
MSTORE8: "MSTORE8",
SLOAD: "SLOAD",
SSTORE: "SSTORE",
JUMP: "JUMP",
JUMPI: "JUMPI",
PC: "PC",
MSIZE: "MSIZE",
GAS: "GAS",
JUMPDEST: "JUMPDEST",
//0x60范围-推。
PUSH1: "PUSH1",
PUSH2: "PUSH2",
PUSH3: "PUSH3",
PUSH4: "PUSH4",
PUSH5: "PUSH5",
PUSH6: "PUSH6",
PUSH7: "PUSH7",
PUSH8: "PUSH8",
PUSH9: "PUSH9",
PUSH10: "PUSH10",
PUSH11: "PUSH11",
PUSH12: "PUSH12",
PUSH13: "PUSH13",
PUSH14: "PUSH14",
PUSH15: "PUSH15",
PUSH16: "PUSH16",
PUSH17: "PUSH17",
PUSH18: "PUSH18",
PUSH19: "PUSH19",
PUSH20: "PUSH20",
PUSH21: "PUSH21",
PUSH22: "PUSH22",
PUSH23: "PUSH23",
PUSH24: "PUSH24",
PUSH25: "PUSH25",
PUSH26: "PUSH26",
PUSH27: "PUSH27",
PUSH28: "PUSH28",
PUSH29: "PUSH29",
PUSH30: "PUSH30",
PUSH31: "PUSH31",
PUSH32: "PUSH32",
DUP1: "DUP1",
DUP2: "DUP2",
DUP3: "DUP3",
DUP4: "DUP4",
DUP5: "DUP5",
DUP6: "DUP6",
DUP7: "DUP7",
DUP8: "DUP8",
DUP9: "DUP9",
DUP10: "DUP10",
DUP11: "DUP11",
DUP12: "DUP12",
DUP13: "DUP13",
DUP14: "DUP14",
DUP15: "DUP15",
DUP16: "DUP16",
SWAP1: "SWAP1",
SWAP2: "SWAP2",
SWAP3: "SWAP3",
SWAP4: "SWAP4",
SWAP5: "SWAP5",
SWAP6: "SWAP6",
SWAP7: "SWAP7",
SWAP8: "SWAP8",
SWAP9: "SWAP9",
SWAP10: "SWAP10",
SWAP11: "SWAP11",
SWAP12: "SWAP12",
SWAP13: "SWAP13",
SWAP14: "SWAP14",
SWAP15: "SWAP15",
SWAP16: "SWAP16",
LOG0: "LOG0",
LOG1: "LOG1",
LOG2: "LOG2",
LOG3: "LOG3",
LOG4: "LOG4",
//0xF0范围。
CREATE: "CREATE",
CALL: "CALL",
RETURN: "RETURN",
CALLCODE: "CALLCODE",
DELEGATECALL: "DELEGATECALL",
CREATE2: "CREATE2",
STATICCALL: "STATICCALL",
REVERT: "REVERT",
SELFDESTRUCT: "SELFDESTRUCT",
PUSH: "PUSH",
DUP: "DUP",
SWAP: "SWAP",
}
func (op OpCode) String() string {
str := opCodeToString[op]
if len(str) == 0 {
return fmt.Sprintf("Missing opcode 0x%x", int(op))
}
return str
}
var stringToOp = map[string]OpCode{
"STOP": STOP,
"ADD": ADD,
"MUL": MUL,
"SUB": SUB,
"DIV": DIV,
"SDIV": SDIV,
"MOD": MOD,
"SMOD": SMOD,
"EXP": EXP,
"NOT": NOT,
"LT": LT,
"GT": GT,
"SLT": SLT,
"SGT": SGT,
"EQ": EQ,
"ISZERO": ISZERO,
"SIGNEXTEND": SIGNEXTEND,
"AND": AND,
"OR": OR,
"XOR": XOR,
"BYTE": BYTE,
"SHL": SHL,
"SHR": SHR,
"SAR": SAR,
"ADDMOD": ADDMOD,
"MULMOD": MULMOD,
"SHA3": SHA3,
"ADDRESS": ADDRESS,
"BALANCE": BALANCE,
"ORIGIN": ORIGIN,
"CALLER": CALLER,
"CALLVALUE": CALLVALUE,
"CALLDATALOAD": CALLDATALOAD,
"CALLDATASIZE": CALLDATASIZE,
"CALLDATACOPY": CALLDATACOPY,
"DELEGATECALL": DELEGATECALL,
"STATICCALL": STATICCALL,
"CODESIZE": CODESIZE,
"CODECOPY": CODECOPY,
"GASPRICE": GASPRICE,
"EXTCODESIZE": EXTCODESIZE,
"EXTCODECOPY": EXTCODECOPY,
"RETURNDATASIZE": RETURNDATASIZE,
"RETURNDATACOPY": RETURNDATACOPY,
"EXTCODEHASH": EXTCODEHASH,
"BLOCKHASH": BLOCKHASH,
"COINBASE": COINBASE,
"TIMESTAMP": TIMESTAMP,
"NUMBER": NUMBER,
"DIFFICULTY": DIFFICULTY,
"GASLIMIT": GASLIMIT,
"POP": POP,
"MLOAD": MLOAD,
"MSTORE": MSTORE,
"MSTORE8": MSTORE8,
"SLOAD": SLOAD,
"SSTORE": SSTORE,
"JUMP": JUMP,
"JUMPI": JUMPI,
"PC": PC,
"MSIZE": MSIZE,
"GAS": GAS,
"JUMPDEST": JUMPDEST,
"PUSH1": PUSH1,
"PUSH2": PUSH2,
"PUSH3": PUSH3,
"PUSH4": PUSH4,
"PUSH5": PUSH5,
"PUSH6": PUSH6,
"PUSH7": PUSH7,
"PUSH8": PUSH8,
"PUSH9": PUSH9,
"PUSH10": PUSH10,
"PUSH11": PUSH11,
"PUSH12": PUSH12,
"PUSH13": PUSH13,
"PUSH14": PUSH14,
"PUSH15": PUSH15,
"PUSH16": PUSH16,
"PUSH17": PUSH17,
"PUSH18": PUSH18,
"PUSH19": PUSH19,
"PUSH20": PUSH20,
"PUSH21": PUSH21,
"PUSH22": PUSH22,
"PUSH23": PUSH23,
"PUSH24": PUSH24,
"PUSH25": PUSH25,
"PUSH26": PUSH26,
"PUSH27": PUSH27,
"PUSH28": PUSH28,
"PUSH29": PUSH29,
"PUSH30": PUSH30,
"PUSH31": PUSH31,
"PUSH32": PUSH32,
"DUP1": DUP1,
"DUP2": DUP2,
"DUP3": DUP3,
"DUP4": DUP4,
"DUP5": DUP5,
"DUP6": DUP6,
"DUP7": DUP7,
"DUP8": DUP8,
"DUP9": DUP9,
"DUP10": DUP10,
"DUP11": DUP11,
"DUP12": DUP12,
"DUP13": DUP13,
"DUP14": DUP14,
"DUP15": DUP15,
"DUP16": DUP16,
"SWAP1": SWAP1,
"SWAP2": SWAP2,
"SWAP3": SWAP3,
"SWAP4": SWAP4,
"SWAP5": SWAP5,
"SWAP6": SWAP6,
"SWAP7": SWAP7,
"SWAP8": SWAP8,
"SWAP9": SWAP9,
"SWAP10": SWAP10,
"SWAP11": SWAP11,
"SWAP12": SWAP12,
"SWAP13": SWAP13,
"SWAP14": SWAP14,
"SWAP15": SWAP15,
"SWAP16": SWAP16,
"LOG0": LOG0,
"LOG1": LOG1,
"LOG2": LOG2,
"LOG3": LOG3,
"LOG4": LOG4,
"CREATE": CREATE,
"CREATE2": CREATE2,
"CALL": CALL,
"RETURN": RETURN,
"CALLCODE": CALLCODE,
"REVERT": REVERT,
"SELFDESTRUCT": SELFDESTRUCT,
}
//stringtoop查找名称存储在“str”中的操作码。
func StringToOp(str string) OpCode {
return stringToOp[str]
}