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156 lines
2.8 KiB
156 lines
2.8 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU 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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cpp-ethereum 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file Instruction.h
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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*/
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#pragma once
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#include <libethcore/Common.h>
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namespace eth
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{
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// TODO: Update comments.
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/// Virtual machine bytecode instruction.
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enum class Instruction: uint8_t
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{
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STOP = 0x00, ///< halts execution
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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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EXP,
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NEG,
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LT,
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GT,
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SLT,
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SGT,
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EQ,
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NOT,
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AND = 0x10,
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OR,
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XOR,
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BYTE,
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SHA3 = 0x20,
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ADDRESS = 0x30,
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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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PREVHASH = 0x40,
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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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POP = 0x50,
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DUP,
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SWAP,
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MLOAD,
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MSTORE,
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MSTORE8,
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SLOAD,
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SSTORE,
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JUMP,
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JUMPI,
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PC,
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MEMSIZE,
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GAS,
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PUSH1 = 0x60,
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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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CREATE = 0xf0,
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CALL,
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RETURN,
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SUICIDE = 0xff
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};
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/// Information structure for a particular instruction.
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struct InstructionInfo
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{
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char const* name; ///< The name of the instruction.
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int additional; ///< Additional items required in memory for this instructions (only for PUSH).
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int args; ///< Number of items required on the stack for this instruction (and, for the purposes of ret, the number taken from the stack).
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int ret; ///< Number of items placed (back) on the stack by this instruction, assuming args items were removed.
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};
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/// Information on all the instructions.
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extern const std::map<Instruction, InstructionInfo> c_instructionInfo;
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/// Convert from string mnemonic to Instruction type.
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extern const std::map<std::string, Instruction> c_instructions;
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/// Convert from simple EVM assembly language to EVM code.
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bytes assemble(std::string const& _code, bool _quiet = false);
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/// Convert from EVM code to simple EVM assembly language.
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std::string disassemble(bytes const& _mem);
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/// Compile a Low-level Lisp-like Language program into EVM-code.
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bytes compileLisp(std::string const& _code, bool _quiet, bytes& _init);
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unsigned pushLiteral(bytes& o_code, u256 _literalValue);
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}
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