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package vm
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import (
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"fmt"
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)
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type OpCode byte
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// Op codes
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const (
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// 0x0 range - arithmetic ops
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STOP = 0x00
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ADD = 0x01
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MUL = 0x02
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SUB = 0x03
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DIV = 0x04
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SDIV = 0x05
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MOD = 0x06
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SMOD = 0x07
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EXP = 0x08
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BNOT = 0x09
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LT = 0x0a
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GT = 0x0b
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SLT = 0x0c
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SGT = 0x0d
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EQ = 0x0e
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NOT = 0x0f
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// 0x10 range - bit ops
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AND = 0x10
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OR = 0x11
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XOR = 0x12
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BYTE = 0x13
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ADDMOD = 0x14
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MULMOD = 0x15
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// 0x20 range - crypto
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SHA3 = 0x20
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// 0x30 range - closure state
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ADDRESS = 0x30
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BALANCE = 0x31
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ORIGIN = 0x32
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CALLER = 0x33
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CALLVALUE = 0x34
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CALLDATALOAD = 0x35
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CALLDATASIZE = 0x36
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CALLDATACOPY = 0x37
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CODESIZE = 0x38
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CODECOPY = 0x39
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GASPRICE = 0x3a
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EXTCODESIZE = 0x3b
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EXTCODECOPY = 0x3c
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// 0x40 range - block operations
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PREVHASH = 0x40
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COINBASE = 0x41
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TIMESTAMP = 0x42
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NUMBER = 0x43
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DIFFICULTY = 0x44
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GASLIMIT = 0x45
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// 0x50 range - 'storage' and execution
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POP = 0x50
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//DUP = 0x51
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//SWAP = 0x52
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MLOAD = 0x53
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MSTORE = 0x54
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MSTORE8 = 0x55
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SLOAD = 0x56
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SSTORE = 0x57
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JUMP = 0x58
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JUMPI = 0x59
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PC = 0x5a
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MSIZE = 0x5b
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GAS = 0x5c
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JUMPDEST = 0x5d
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// 0x60 range
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PUSH1 = 0x60
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PUSH2 = 0x61
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PUSH3 = 0x62
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PUSH4 = 0x63
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PUSH5 = 0x64
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PUSH6 = 0x65
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PUSH7 = 0x66
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PUSH8 = 0x67
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PUSH9 = 0x68
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PUSH10 = 0x69
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PUSH11 = 0x6a
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PUSH12 = 0x6b
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PUSH13 = 0x6c
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PUSH14 = 0x6d
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PUSH15 = 0x6e
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PUSH16 = 0x6f
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PUSH17 = 0x70
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PUSH18 = 0x71
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PUSH19 = 0x72
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PUSH20 = 0x73
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PUSH21 = 0x74
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PUSH22 = 0x75
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PUSH23 = 0x76
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PUSH24 = 0x77
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PUSH25 = 0x78
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PUSH26 = 0x79
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PUSH27 = 0x7a
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PUSH28 = 0x7b
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PUSH29 = 0x7c
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PUSH30 = 0x7d
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PUSH31 = 0x7e
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PUSH32 = 0x7f
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DUP1 = 0x80
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DUP2 = 0x81
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DUP3 = 0x82
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DUP4 = 0x83
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DUP5 = 0x84
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DUP6 = 0x85
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DUP7 = 0x86
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DUP8 = 0x87
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DUP9 = 0x88
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DUP10 = 0x89
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DUP11 = 0x8a
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DUP12 = 0x8b
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DUP13 = 0x8c
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DUP14 = 0x8d
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DUP15 = 0x8e
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DUP16 = 0x8f
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SWAP1 = 0x90
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SWAP2 = 0x91
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SWAP3 = 0x92
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SWAP4 = 0x93
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SWAP5 = 0x94
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SWAP6 = 0x95
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SWAP7 = 0x96
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SWAP8 = 0x97
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SWAP9 = 0x98
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SWAP10 = 0x99
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SWAP11 = 0x9a
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SWAP12 = 0x9b
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SWAP13 = 0x9c
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SWAP14 = 0x9d
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SWAP15 = 0x9e
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SWAP16 = 0x9f
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LOG0 = 0xa0
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LOG1 = 0xa1
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LOG2 = 0xa2
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LOG3 = 0xa3
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LOG4 = 0xa4
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// 0xf0 range - closures
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CREATE = 0xf0
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CALL = 0xf1
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RETURN = 0xf2
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CALLCODE = 0xf3
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// 0x70 range - other
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SUICIDE = 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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BNOT: "BNOT",
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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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NOT: "NOT",
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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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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: "TXGASPRICE",
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// 0x40 range - block operations
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PREVHASH: "PREVHASH",
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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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EXTCODESIZE: "EXTCODESIZE",
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EXTCODECOPY: "EXTCODECOPY",
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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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// 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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// 0x70 range - other
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SUICIDE: "SUICIDE",
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}
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func (o OpCode) String() string {
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str := opCodeToString[o]
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if len(str) == 0 {
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return fmt.Sprintf("Missing opcode 0x%x", int(o))
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}
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return str
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}
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