233 lines
13 KiB
JavaScript
233 lines
13 KiB
JavaScript
"use strict";
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// Yellow Paper
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// See: https://ethereum.github.io/yellowpaper/paper.pdf
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// SHL / SHR / SAR:
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// See: https://eips.ethereum.org/EIPS/eip-145
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// CREATE2:
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// See: https://eips.ethereum.org/EIPS/eip-1014
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// EXTCODEHASH
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// See: https://eips.ethereum.org/EIPS/eip-1052
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import { ethers } from "ethers";
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export var OpcodeMemoryAccess;
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(function (OpcodeMemoryAccess) {
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OpcodeMemoryAccess["write"] = "write";
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OpcodeMemoryAccess["read"] = "read";
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OpcodeMemoryAccess["full"] = "full";
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})(OpcodeMemoryAccess || (OpcodeMemoryAccess = {}));
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;
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export class Opcode {
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constructor(mnemonic, value, delta, alpha, doc) {
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ethers.utils.defineReadOnly(this, "mnemonic", mnemonic);
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ethers.utils.defineReadOnly(this, "value", value);
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ethers.utils.defineReadOnly(this, "delta", delta);
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ethers.utils.defineReadOnly(this, "alpha", alpha);
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ethers.utils.defineReadOnly(this, "doc", doc || null);
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}
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// Returns if this opcode is a jump
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isJump() {
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return (this.mnemonic === "JUMP" || this.mnemonic === "JUMPI");
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}
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isValidJumpDest() {
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return (this.mnemonic === "JUMPDEST");
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}
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// Returns the number of of bytes this performs if a PUSH; 0 otherwise
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isPush() {
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if (this.mnemonic.substring(0, 4) === "PUSH") {
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return this.value - 0x60 + 1;
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}
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return 0;
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}
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// Returns true if this operation writes to memory contents (or if readOrWrite, reads memory)
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// Unknown opcodes return null
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isMemoryAccess(readOrWrite) {
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switch ((_Opcodes[this.mnemonic.toLowerCase()] || { memory: null }).memory) {
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case "read": return OpcodeMemoryAccess.read;
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case "write": return OpcodeMemoryAccess.write;
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case "full": return OpcodeMemoryAccess.full;
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}
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return null;
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}
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// Returns true if this opcode does not affect state
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// Unknown opcodes return false
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isStatic() {
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return !(_Opcodes[this.mnemonic.toLowerCase()] || { nonStatic: true }).nonStatic;
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}
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static from(valueOrMnemonic) {
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if (typeof (valueOrMnemonic) === "string") {
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return OpcodeMap[valueOrMnemonic.toLowerCase()] || null;
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}
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return (Opcodes[valueOrMnemonic] || null);
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}
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}
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const _Opcodes = {
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// Stop and Arithmetic Operations
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stop: { value: 0x00, delta: 0, alpha: 0, doc: "stop" },
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add: { value: 0x01, delta: 2, alpha: 1, doc: "v = add(a, b)" },
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mul: { value: 0x02, delta: 2, alpha: 1, doc: "v = mul(a, b)" },
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sub: { value: 0x03, delta: 2, alpha: 1, doc: "v = sub(a, b)" },
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div: { value: 0x04, delta: 2, alpha: 1, doc: "v = div(top, bottom)" },
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sdiv: { value: 0x05, delta: 2, alpha: 1, doc: "v = sdiv(top, bottom)" },
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mod: { value: 0x06, delta: 2, alpha: 1, doc: "v = mod(a, modulo)" },
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smod: { value: 0x07, delta: 2, alpha: 1, doc: "v = smod(a, modulo)" },
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addmod: { value: 0x08, delta: 3, alpha: 1, doc: "v = addmod(a, b, modulo)" },
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mulmod: { value: 0x09, delta: 3, alpha: 1, doc: "v = mul(a, b, modulo)" },
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exp: { value: 0x0a, delta: 2, alpha: 1, doc: "v = exp(base, exponent)" },
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signextend: { value: 0x0b, delta: 2, alpha: 1, doc: "v = signextend(value, byteWidth)" },
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// Comparison & Bitwise Logic Operations
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lt: { value: 0x10, delta: 2, alpha: 1, doc: "v = lt(a, b)" },
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gt: { value: 0x11, delta: 2, alpha: 1, doc: "v = gt(a, b)" },
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slt: { value: 0x12, delta: 2, alpha: 1, doc: "v = slt(a, b)" },
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sgt: { value: 0x13, delta: 2, alpha: 1, doc: "v = sgt(a, b)" },
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eq: { value: 0x14, delta: 2, alpha: 1, doc: "v = eq(a, b)" },
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iszero: { value: 0x15, delta: 1, alpha: 1, doc: "v = iszero(a)" },
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and: { value: 0x16, delta: 2, alpha: 1, doc: "v = and(a, b)" },
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or: { value: 0x17, delta: 2, alpha: 1, doc: "v = or(a, b)" },
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xor: { value: 0x18, delta: 2, alpha: 1, doc: "v = xor(a, b)" },
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not: { value: 0x19, delta: 1, alpha: 1, doc: "v = not(a, b)" },
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byte: { value: 0x1a, delta: 2, alpha: 1, doc: "v = byte(msbByteIndex, value)" },
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shl: { value: 0x1b, delta: 2, alpha: 1, doc: "v = shl(shiftBits, value)" },
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shr: { value: 0x1c, delta: 2, alpha: 1, doc: "v = shr(shiftBits, value)" },
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sar: { value: 0x1d, delta: 2, alpha: 1, doc: "v = sar(shiftBits, value)" },
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// SHA3
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sha3: { value: 0x20, delta: 2, alpha: 1, doc: "v = sha3(offset, length)", memory: "read" },
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// Environmental Information
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address: { value: 0x30, delta: 0, alpha: 1, doc: "myAddr = address" },
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balance: { value: 0x31, delta: 1, alpha: 1, doc: "wei = balance(address)" },
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origin: { value: 0x32, delta: 0, alpha: 1, doc: "txOrigin = origin" },
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caller: { value: 0x33, delta: 0, alpha: 1, doc: "msgSender = caller" },
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callvalue: { value: 0x34, delta: 0, alpha: 1, doc: "msgValue = callvalue" },
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calldataload: { value: 0x35, delta: 1, alpha: 1, doc: "calldataWordValue = calldataload(byteOffet)" },
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calldatasize: { value: 0x36, delta: 0, alpha: 1, doc: "calldataLength = calldatasize" },
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calldatacopy: { value: 0x37, delta: 3, alpha: 0, doc: "calldatacopy(dstMemoryIndex, dataIndex, length)", memory: "write" },
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codesize: { value: 0x38, delta: 0, alpha: 1, doc: "myCodeLength = codesize" },
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codecopy: { value: 0x39, delta: 3, alpha: 0, doc: "codecopy(dstMemoryIndex, codeIndex, length)", memory: "write" },
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gasprice: { value: 0x3a, delta: 0, alpha: 1, doc: "txGasPrice = gasprice" },
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extcodesize: { value: 0x3b, delta: 1, alpha: 1, doc: "otherCodeLength = extcodesize(address)" },
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extcodecopy: { value: 0x3c, delta: 4, alpha: 0, doc: "extcodecopy(address, dstMemoryIndex, extcodeIndex, length)", memory: "write" },
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returndatasize: { value: 0x3d, delta: 0, alpha: 1, doc: "v = returndatasize" },
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returndatacopy: { value: 0x3e, delta: 3, alpha: 0, doc: "returndatacopy(dstMemoryOffset, returndataIndex, length)", memory: "write" },
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extcodehash: { value: 0x3f, delta: 1, alpha: 1, doc: "hash = extcodehash(address)" },
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// Block Information
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blockhash: { value: 0x40, delta: 1, alpha: 1, doc: "hash = blockhash(blockNumber)" },
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coinbase: { value: 0x41, delta: 0, alpha: 1, doc: "miner = coinbase" },
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timestamp: { value: 0x42, delta: 0, alpha: 1, doc: "now = timestamp" },
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number: { value: 0x43, delta: 0, alpha: 1, doc: "blockNumber = number" },
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difficulty: { value: 0x44, delta: 0, alpha: 1, doc: "diff = difficulty" },
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gaslimit: { value: 0x45, delta: 0, alpha: 1, doc: "gas = gaslimit" },
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// Stack, Memory, Storage and Flow Operations
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pop: { value: 0x50, delta: 1, alpha: 0, doc: "stackTopValue = pop" },
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mload: { value: 0x51, delta: 1, alpha: 1, doc: "memoryWordValue = mload(memoryByteIndex)", memory: "read" },
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mstore: { value: 0x52, delta: 2, alpha: 0, doc: "mstore(memoryByteIndex, valueOut)", memory: "write" },
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mstore8: { value: 0x53, delta: 2, alpha: 0, doc: "mstore8(memoryByteIndex, valueOut [ & 0xff ])", memory: "write" },
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sload: { value: 0x54, delta: 1, alpha: 1, doc: "storageWordValue = sload(storageWordIndex)" },
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sstore: { value: 0x55, delta: 2, alpha: 0, doc: "sstore(storageWordIndex, valueOut)", nonStatic: true },
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jump: { value: 0x56, delta: 1, alpha: 0, doc: "jump(target)" },
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jumpi: { value: 0x57, delta: 2, alpha: 0, doc: "jumpi(target, notZero)" },
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pc: { value: 0x58, delta: 0, alpha: 1, doc: "programCounter = pc" },
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msize: { value: 0x59, delta: 0, alpha: 1, doc: "currentMemorySize = msize" },
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gas: { value: 0x5a, delta: 0, alpha: 1, doc: "remainingGas = gas" },
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jumpdest: { value: 0x5b, delta: 0, alpha: 0, doc: "jumpdest" },
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// Push Operations
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push1: { value: 0x60, delta: 0, alpha: 1 },
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push2: { value: 0x61, delta: 0, alpha: 1 },
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push3: { value: 0x62, delta: 0, alpha: 1 },
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push4: { value: 0x63, delta: 0, alpha: 1 },
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push5: { value: 0x64, delta: 0, alpha: 1 },
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push6: { value: 0x65, delta: 0, alpha: 1 },
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push7: { value: 0x66, delta: 0, alpha: 1 },
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push8: { value: 0x67, delta: 0, alpha: 1 },
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push9: { value: 0x68, delta: 0, alpha: 1 },
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push10: { value: 0x69, delta: 0, alpha: 1 },
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push11: { value: 0x6a, delta: 0, alpha: 1 },
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push12: { value: 0x6b, delta: 0, alpha: 1 },
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push13: { value: 0x6c, delta: 0, alpha: 1 },
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push14: { value: 0x6d, delta: 0, alpha: 1 },
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push15: { value: 0x6e, delta: 0, alpha: 1 },
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push16: { value: 0x6f, delta: 0, alpha: 1 },
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push17: { value: 0x70, delta: 0, alpha: 1 },
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push18: { value: 0x71, delta: 0, alpha: 1 },
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push19: { value: 0x72, delta: 0, alpha: 1 },
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push20: { value: 0x73, delta: 0, alpha: 1 },
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push21: { value: 0x74, delta: 0, alpha: 1 },
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push22: { value: 0x75, delta: 0, alpha: 1 },
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push23: { value: 0x76, delta: 0, alpha: 1 },
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push24: { value: 0x77, delta: 0, alpha: 1 },
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push25: { value: 0x78, delta: 0, alpha: 1 },
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push26: { value: 0x79, delta: 0, alpha: 1 },
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push27: { value: 0x7a, delta: 0, alpha: 1 },
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push28: { value: 0x7b, delta: 0, alpha: 1 },
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push29: { value: 0x7c, delta: 0, alpha: 1 },
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push30: { value: 0x7d, delta: 0, alpha: 1 },
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push31: { value: 0x7e, delta: 0, alpha: 1 },
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push32: { value: 0x7f, delta: 0, alpha: 1 },
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// Duplicate Operations
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dup1: { value: 0x80, delta: 0, alpha: 1 },
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dup2: { value: 0x81, delta: 0, alpha: 1 },
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dup3: { value: 0x82, delta: 0, alpha: 1 },
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dup4: { value: 0x83, delta: 0, alpha: 1 },
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dup5: { value: 0x84, delta: 0, alpha: 1 },
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dup6: { value: 0x85, delta: 0, alpha: 1 },
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dup7: { value: 0x86, delta: 0, alpha: 1 },
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dup8: { value: 0x87, delta: 0, alpha: 1 },
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dup9: { value: 0x88, delta: 0, alpha: 1 },
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dup10: { value: 0x89, delta: 0, alpha: 1 },
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dup11: { value: 0x8a, delta: 0, alpha: 1 },
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dup12: { value: 0x8b, delta: 0, alpha: 1 },
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dup13: { value: 0x8c, delta: 0, alpha: 1 },
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dup14: { value: 0x8d, delta: 0, alpha: 1 },
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dup15: { value: 0x8e, delta: 0, alpha: 1 },
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dup16: { value: 0x8f, delta: 0, alpha: 1 },
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// Exchange Operations
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swap1: { value: 0x90, delta: 0, alpha: 0 },
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swap2: { value: 0x91, delta: 0, alpha: 0 },
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swap3: { value: 0x92, delta: 0, alpha: 0 },
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swap4: { value: 0x93, delta: 0, alpha: 0 },
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swap5: { value: 0x94, delta: 0, alpha: 0 },
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swap6: { value: 0x95, delta: 0, alpha: 0 },
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swap7: { value: 0x96, delta: 0, alpha: 0 },
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swap8: { value: 0x97, delta: 0, alpha: 0 },
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swap9: { value: 0x98, delta: 0, alpha: 0 },
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swap10: { value: 0x99, delta: 0, alpha: 0 },
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swap11: { value: 0x9a, delta: 0, alpha: 0 },
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swap12: { value: 0x9b, delta: 0, alpha: 0 },
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swap13: { value: 0x9c, delta: 0, alpha: 0 },
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swap14: { value: 0x9d, delta: 0, alpha: 0 },
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swap15: { value: 0x9e, delta: 0, alpha: 0 },
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swap16: { value: 0x9f, delta: 0, alpha: 0 },
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// Loggin Operations
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log0: { value: 0xa0, delta: 2, alpha: 0, nonStatic: true, memory: "read" },
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log1: { value: 0xa1, delta: 3, alpha: 0, nonStatic: true, memory: "read" },
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log2: { value: 0xa2, delta: 4, alpha: 0, nonStatic: true, memory: "read" },
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log3: { value: 0xa3, delta: 5, alpha: 0, nonStatic: true, memory: "read" },
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log4: { value: 0xa4, delta: 6, alpha: 0, nonStatic: true, memory: "read" },
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// System Operations
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create: { value: 0xf0, delta: 3, alpha: 1, doc: "address = create(value, index, length)", nonStatic: true, memory: "read" },
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call: { value: 0xf1, delta: 7, alpha: 1, doc: "v = call(gasLimit, address, value, inputIndex, inputLength, outputIndex, outputLength)", nonStatic: true, memory: "full" },
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callcode: { value: 0xf2, delta: 7, alpha: 1, doc: "v = callcode(@TODO)", nonStatic: true, memory: "full" },
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"return": { value: 0xf3, delta: 2, alpha: 0, doc: "return(index, length)", memory: "read" },
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delegatecall: { value: 0xf4, delta: 6, alpha: 1, doc: "v = delegatecall(gasLimit, address, inputIndex, inputLength, outputIndex, outputLength)", nonStatic: true, memory: "full" },
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create2: { value: 0xf5, delta: 4, alpha: 1, doc: "address = create2(value, index, length, salt)", nonStatic: true, memory: "read" },
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staticcall: { value: 0xfa, delta: 6, alpha: 1, doc: "v = staticcall(gasLimit, address, inputIndex, inputLength, outputIndex, outputLength)", memory: "full" },
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revert: { value: 0xfd, delta: 2, alpha: 0, doc: "revert(returnDataOffset, returnDataLength)", memory: "read" },
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invalid: { value: 0xfe, delta: 0, alpha: 0, doc: "invalid" },
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suicide: { value: 0xff, delta: 1, alpha: 0, doc: "suicide(targetAddress)", nonStatic: true },
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};
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const OpcodeMap = {};
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const Opcodes = [];
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for (let i = 0; i < 256; i++) {
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Opcodes.push(null);
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}
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Object.keys(_Opcodes).forEach((mnemonic) => {
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const info = _Opcodes[mnemonic];
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const opcode = new Opcode(mnemonic.toUpperCase(), info.value, info.delta, info.alpha, info.doc);
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const key = opcode.mnemonic.toLowerCase();
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const value = opcode.value;
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if (OpcodeMap[key] || Opcodes[value]) {
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console.log(key, OpcodeMap[key], value, Opcodes[value]);
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throw new Error("There is a type in the above table.");
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}
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OpcodeMap[key] = opcode;
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Opcodes[value] = opcode;
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});
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Object.freeze(Opcodes);
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//# sourceMappingURL=opcodes.js.map
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