546 lines
10 KiB
Go
546 lines
10 KiB
Go
// Copyright 2014 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package vm
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import (
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"fmt"
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)
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// OpCode is an EVM opcode
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type OpCode byte
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// IsPush specifies if an opcode is a PUSH opcode.
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func (op OpCode) IsPush() bool {
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switch op {
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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:
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return true
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}
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return false
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}
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// IsStaticJump specifies if an opcode is JUMP.
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func (op OpCode) IsStaticJump() bool {
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return op == JUMP
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}
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// 0x0 range - arithmetic ops.
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const (
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STOP OpCode = iota
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ADD
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MUL
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SUB
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DIV
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SDIV
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MOD
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SMOD
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ADDMOD
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MULMOD
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EXP
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SIGNEXTEND
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)
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// 0x10 range - comparison ops.
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const (
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LT OpCode = iota + 0x10
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GT
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SLT
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SGT
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EQ
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ISZERO
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AND
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OR
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XOR
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NOT
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BYTE
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SHL
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SHR
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SAR
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SHA3 OpCode = 0x20
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)
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// 0x30 range - closure state.
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const (
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ADDRESS OpCode = 0x30 + iota
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BALANCE
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ORIGIN
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CALLER
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CALLVALUE
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CALLDATALOAD
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CALLDATASIZE
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CALLDATACOPY
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CODESIZE
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CODECOPY
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GASPRICE
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EXTCODESIZE
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EXTCODECOPY
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RETURNDATASIZE
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RETURNDATACOPY
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EXTCODEHASH
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)
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// 0x40 range - block operations.
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const (
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BLOCKHASH OpCode = 0x40 + iota
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COINBASE
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TIMESTAMP
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NUMBER
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DIFFICULTY
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GASLIMIT
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CHAINID OpCode = 0x46
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SELFBALANCE OpCode = 0x47
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)
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// 0x50 range - 'storage' and execution.
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const (
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POP OpCode = 0x50
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MLOAD OpCode = 0x51
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MSTORE OpCode = 0x52
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MSTORE8 OpCode = 0x53
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SLOAD OpCode = 0x54
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SSTORE OpCode = 0x55
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JUMP OpCode = 0x56
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JUMPI OpCode = 0x57
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PC OpCode = 0x58
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MSIZE OpCode = 0x59
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GAS OpCode = 0x5a
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JUMPDEST OpCode = 0x5b
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)
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// 0x60 range.
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const (
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PUSH1 OpCode = 0x60 + iota
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PUSH2
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PUSH3
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PUSH4
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PUSH5
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PUSH6
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PUSH7
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PUSH8
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PUSH9
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PUSH10
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PUSH11
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PUSH12
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PUSH13
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PUSH14
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PUSH15
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PUSH16
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PUSH17
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PUSH18
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PUSH19
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PUSH20
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PUSH21
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PUSH22
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PUSH23
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PUSH24
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PUSH25
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PUSH26
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PUSH27
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PUSH28
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PUSH29
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PUSH30
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PUSH31
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PUSH32
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DUP1
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DUP2
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DUP3
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DUP4
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DUP5
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DUP6
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DUP7
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DUP8
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DUP9
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DUP10
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DUP11
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DUP12
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DUP13
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DUP14
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DUP15
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DUP16
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SWAP1
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SWAP2
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SWAP3
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SWAP4
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SWAP5
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SWAP6
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SWAP7
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SWAP8
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SWAP9
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SWAP10
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SWAP11
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SWAP12
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SWAP13
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SWAP14
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SWAP15
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SWAP16
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)
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// 0xa0 range - logging ops.
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const (
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LOG0 OpCode = 0xa0 + iota
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LOG1
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LOG2
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LOG3
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LOG4
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)
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// unofficial opcodes used for parsing.
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const (
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PUSH OpCode = 0xb0 + iota
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DUP
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SWAP
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)
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// 0xf0 range - closures.
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const (
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CREATE OpCode = 0xf0 + iota
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CALL
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CALLCODE
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RETURN
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DELEGATECALL
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CREATE2
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STATICCALL OpCode = 0xfa
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REVERT OpCode = 0xfd
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SELFDESTRUCT OpCode = 0xff
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)
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// Since the opcodes aren't all in order we can't use a regular slice.
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var opCodeToString = map[OpCode]string{
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// 0x0 range - arithmetic ops.
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STOP: "STOP",
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ADD: "ADD",
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MUL: "MUL",
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SUB: "SUB",
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DIV: "DIV",
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SDIV: "SDIV",
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MOD: "MOD",
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SMOD: "SMOD",
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EXP: "EXP",
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NOT: "NOT",
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LT: "LT",
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GT: "GT",
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SLT: "SLT",
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SGT: "SGT",
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EQ: "EQ",
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ISZERO: "ISZERO",
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SIGNEXTEND: "SIGNEXTEND",
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// 0x10 range - bit ops.
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AND: "AND",
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OR: "OR",
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XOR: "XOR",
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BYTE: "BYTE",
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SHL: "SHL",
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SHR: "SHR",
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SAR: "SAR",
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ADDMOD: "ADDMOD",
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MULMOD: "MULMOD",
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// 0x20 range - crypto.
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SHA3: "SHA3",
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// 0x30 range - closure state.
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ADDRESS: "ADDRESS",
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BALANCE: "BALANCE",
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ORIGIN: "ORIGIN",
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CALLER: "CALLER",
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CALLVALUE: "CALLVALUE",
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CALLDATALOAD: "CALLDATALOAD",
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CALLDATASIZE: "CALLDATASIZE",
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CALLDATACOPY: "CALLDATACOPY",
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CODESIZE: "CODESIZE",
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CODECOPY: "CODECOPY",
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GASPRICE: "GASPRICE",
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EXTCODESIZE: "EXTCODESIZE",
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EXTCODECOPY: "EXTCODECOPY",
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RETURNDATASIZE: "RETURNDATASIZE",
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RETURNDATACOPY: "RETURNDATACOPY",
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EXTCODEHASH: "EXTCODEHASH",
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// 0x40 range - block operations.
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BLOCKHASH: "BLOCKHASH",
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COINBASE: "COINBASE",
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TIMESTAMP: "TIMESTAMP",
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NUMBER: "NUMBER",
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DIFFICULTY: "DIFFICULTY",
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GASLIMIT: "GASLIMIT",
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CHAINID: "CHAINID",
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SELFBALANCE: "SELFBALANCE",
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// 0x50 range - 'storage' and execution.
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POP: "POP",
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//DUP: "DUP",
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//SWAP: "SWAP",
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MLOAD: "MLOAD",
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MSTORE: "MSTORE",
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MSTORE8: "MSTORE8",
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SLOAD: "SLOAD",
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SSTORE: "SSTORE",
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JUMP: "JUMP",
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JUMPI: "JUMPI",
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PC: "PC",
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MSIZE: "MSIZE",
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GAS: "GAS",
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JUMPDEST: "JUMPDEST",
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// 0x60 range - push.
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PUSH1: "PUSH1",
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PUSH2: "PUSH2",
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PUSH3: "PUSH3",
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PUSH4: "PUSH4",
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PUSH5: "PUSH5",
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PUSH6: "PUSH6",
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PUSH7: "PUSH7",
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PUSH8: "PUSH8",
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PUSH9: "PUSH9",
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PUSH10: "PUSH10",
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PUSH11: "PUSH11",
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PUSH12: "PUSH12",
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PUSH13: "PUSH13",
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PUSH14: "PUSH14",
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PUSH15: "PUSH15",
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PUSH16: "PUSH16",
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PUSH17: "PUSH17",
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PUSH18: "PUSH18",
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PUSH19: "PUSH19",
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PUSH20: "PUSH20",
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PUSH21: "PUSH21",
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PUSH22: "PUSH22",
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PUSH23: "PUSH23",
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PUSH24: "PUSH24",
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PUSH25: "PUSH25",
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PUSH26: "PUSH26",
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PUSH27: "PUSH27",
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PUSH28: "PUSH28",
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PUSH29: "PUSH29",
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PUSH30: "PUSH30",
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PUSH31: "PUSH31",
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PUSH32: "PUSH32",
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DUP1: "DUP1",
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DUP2: "DUP2",
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DUP3: "DUP3",
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DUP4: "DUP4",
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DUP5: "DUP5",
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DUP6: "DUP6",
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DUP7: "DUP7",
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DUP8: "DUP8",
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DUP9: "DUP9",
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DUP10: "DUP10",
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DUP11: "DUP11",
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DUP12: "DUP12",
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DUP13: "DUP13",
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DUP14: "DUP14",
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DUP15: "DUP15",
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DUP16: "DUP16",
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SWAP1: "SWAP1",
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SWAP2: "SWAP2",
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SWAP3: "SWAP3",
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SWAP4: "SWAP4",
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SWAP5: "SWAP5",
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SWAP6: "SWAP6",
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SWAP7: "SWAP7",
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SWAP8: "SWAP8",
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SWAP9: "SWAP9",
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SWAP10: "SWAP10",
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SWAP11: "SWAP11",
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SWAP12: "SWAP12",
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SWAP13: "SWAP13",
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SWAP14: "SWAP14",
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SWAP15: "SWAP15",
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SWAP16: "SWAP16",
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LOG0: "LOG0",
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LOG1: "LOG1",
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LOG2: "LOG2",
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LOG3: "LOG3",
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LOG4: "LOG4",
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// 0xf0 range.
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CREATE: "CREATE",
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CALL: "CALL",
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RETURN: "RETURN",
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CALLCODE: "CALLCODE",
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DELEGATECALL: "DELEGATECALL",
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CREATE2: "CREATE2",
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STATICCALL: "STATICCALL",
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REVERT: "REVERT",
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SELFDESTRUCT: "SELFDESTRUCT",
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PUSH: "PUSH",
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DUP: "DUP",
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SWAP: "SWAP",
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}
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func (op OpCode) String() string {
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str := opCodeToString[op]
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if len(str) == 0 {
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return fmt.Sprintf("opcode 0x%x not defined", int(op))
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}
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return str
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}
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var stringToOp = map[string]OpCode{
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"STOP": STOP,
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"ADD": ADD,
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"MUL": MUL,
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"SUB": SUB,
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"DIV": DIV,
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"SDIV": SDIV,
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"MOD": MOD,
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"SMOD": SMOD,
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"EXP": EXP,
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"NOT": NOT,
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"LT": LT,
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"GT": GT,
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"SLT": SLT,
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"SGT": SGT,
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"EQ": EQ,
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"ISZERO": ISZERO,
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"SIGNEXTEND": SIGNEXTEND,
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"AND": AND,
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"OR": OR,
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"XOR": XOR,
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"BYTE": BYTE,
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"SHL": SHL,
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"SHR": SHR,
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"SAR": SAR,
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"ADDMOD": ADDMOD,
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"MULMOD": MULMOD,
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"SHA3": SHA3,
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"ADDRESS": ADDRESS,
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"BALANCE": BALANCE,
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"ORIGIN": ORIGIN,
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"CALLER": CALLER,
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"CALLVALUE": CALLVALUE,
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"CALLDATALOAD": CALLDATALOAD,
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"CALLDATASIZE": CALLDATASIZE,
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"CALLDATACOPY": CALLDATACOPY,
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"CHAINID": CHAINID,
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"DELEGATECALL": DELEGATECALL,
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"STATICCALL": STATICCALL,
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"CODESIZE": CODESIZE,
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"CODECOPY": CODECOPY,
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"GASPRICE": GASPRICE,
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"EXTCODESIZE": EXTCODESIZE,
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"EXTCODECOPY": EXTCODECOPY,
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"RETURNDATASIZE": RETURNDATASIZE,
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"RETURNDATACOPY": RETURNDATACOPY,
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"EXTCODEHASH": EXTCODEHASH,
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"BLOCKHASH": BLOCKHASH,
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"COINBASE": COINBASE,
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"TIMESTAMP": TIMESTAMP,
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"NUMBER": NUMBER,
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"DIFFICULTY": DIFFICULTY,
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"GASLIMIT": GASLIMIT,
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"SELFBALANCE": SELFBALANCE,
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"POP": POP,
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"MLOAD": MLOAD,
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"MSTORE": MSTORE,
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"MSTORE8": MSTORE8,
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"SLOAD": SLOAD,
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"SSTORE": SSTORE,
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"JUMP": JUMP,
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"JUMPI": JUMPI,
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"PC": PC,
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"MSIZE": MSIZE,
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"GAS": GAS,
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"JUMPDEST": JUMPDEST,
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"PUSH1": PUSH1,
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"PUSH2": PUSH2,
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"PUSH3": PUSH3,
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"PUSH4": PUSH4,
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"PUSH5": PUSH5,
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"PUSH6": PUSH6,
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"PUSH7": PUSH7,
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"PUSH8": PUSH8,
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"PUSH9": PUSH9,
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"PUSH10": PUSH10,
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"PUSH11": PUSH11,
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"PUSH12": PUSH12,
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"PUSH13": PUSH13,
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"PUSH14": PUSH14,
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"PUSH15": PUSH15,
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"PUSH16": PUSH16,
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"PUSH17": PUSH17,
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"PUSH18": PUSH18,
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"PUSH19": PUSH19,
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"PUSH20": PUSH20,
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"PUSH21": PUSH21,
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"PUSH22": PUSH22,
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"PUSH23": PUSH23,
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"PUSH24": PUSH24,
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"PUSH25": PUSH25,
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"PUSH26": PUSH26,
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"PUSH27": PUSH27,
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"PUSH28": PUSH28,
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"PUSH29": PUSH29,
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"PUSH30": PUSH30,
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"PUSH31": PUSH31,
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"PUSH32": PUSH32,
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"DUP1": DUP1,
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"DUP2": DUP2,
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"DUP3": DUP3,
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"DUP4": DUP4,
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"DUP5": DUP5,
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"DUP6": DUP6,
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"DUP7": DUP7,
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"DUP8": DUP8,
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"DUP9": DUP9,
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"DUP10": DUP10,
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"DUP11": DUP11,
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"DUP12": DUP12,
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"DUP13": DUP13,
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"DUP14": DUP14,
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"DUP15": DUP15,
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"DUP16": DUP16,
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"SWAP1": SWAP1,
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"SWAP2": SWAP2,
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"SWAP3": SWAP3,
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"SWAP4": SWAP4,
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"SWAP5": SWAP5,
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"SWAP6": SWAP6,
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"SWAP7": SWAP7,
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"SWAP8": SWAP8,
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"SWAP9": SWAP9,
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"SWAP10": SWAP10,
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"SWAP11": SWAP11,
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"SWAP12": SWAP12,
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"SWAP13": SWAP13,
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"SWAP14": SWAP14,
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"SWAP15": SWAP15,
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"SWAP16": SWAP16,
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"LOG0": LOG0,
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"LOG1": LOG1,
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"LOG2": LOG2,
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"LOG3": LOG3,
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"LOG4": LOG4,
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"CREATE": CREATE,
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"CREATE2": CREATE2,
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"CALL": CALL,
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"RETURN": RETURN,
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"CALLCODE": CALLCODE,
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"REVERT": REVERT,
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"SELFDESTRUCT": SELFDESTRUCT,
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}
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// StringToOp finds the opcode whose name is stored in `str`.
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func StringToOp(str string) OpCode {
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return stringToOp[str]
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}
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