OPCODE = {"OP_0": b'\x00',
          "OP_PUSHDATA1": b'L',
          "OP_PUSHDATA2": b'M',
          "OP_PUSHDATA4": b'N',
          "OP_1NEGATE": b'O',
          "OP_RESERVED": b'P',
          "OP_1": b'Q',
          "OP_2": b'R',
          "OP_3": b'S',
          "OP_4": b'T',
          "OP_5": b'U',
          "OP_6": b'V',
          "OP_7": b'W',
          "OP_8": b'X',
          "OP_9": b'Y',
          "OP_10": b'Z',
          "OP_11": b'[',
          "OP_12": b'\\',
          "OP_13": b']',
          "OP_14": b'^',
          "OP_15": b'_',
          "OP_16": b'`',
          "OP_NOP": b'a',
          "OP_VER": b'b',
          "OP_IF": b'c',
          "OP_NOTIF": b'd',
          "OP_VERIF": b'e',
          "OP_VERNOTIF": b'f',
          "OP_ELSE": b'g',
          "OP_ENDIF": b'h',
          "OP_VERIFY": b'i',
          "OP_RETURN": b'j',
          "OP_TOALTSTACK": b'k',
          "OP_FROMALTSTACK": b'l',
          "OP_2DROP": b'm',
          "OP_2DUP": b'n',
          "OP_3DUP": b'o',
          "OP_2OVER": b'p',
          "OP_2ROT": b'q',
          "OP_2SWAP": b'r',
          "OP_IFDUP": b's',
          "OP_DEPTH": b't',
          "OP_DROP": b'u',
          "OP_DUP": b'v',
          "OP_NIP": b'w',
          "OP_OVER": b'x',
          "OP_PICK": b'y',
          "OP_ROLL": b'z',
          "OP_ROT": b'{',
          "OP_SWAP": b'|',
          "OP_TUCK": b'}',
          "OP_CAT": b'~',
          "OP_SUBSTR": b'\x7f',
          "OP_LEFT": b'\x80',
          "OP_RIGHT": b'\x81',
          "OP_SIZE": b'\x82',
          "OP_INVERT": b'\x83',
          "OP_AND": b'\x84',
          "OP_OR": b'\x85',
          "OP_XOR": b'\x86',
          "OP_EQUAL": b'\x87',
          "OP_EQUALVERIFY": b'\x88',
          "OP_RESERVED1": b'\x89',
          "OP_RESERVED2": b'\x8a',
          "OP_1ADD": b'\x8b',
          "OP_1SUB": b'\x8c',
          "OP_2MUL": b'\x8d',
          "OP_2DIV": b'\x8e',
          "OP_NEGATE": b'\x8f',
          "OP_ABS": b'\x90',
          "OP_NOT": b'\x91',
          "OP_0NOTEQUAL": b'\x92',
          "OP_ADD": b'\x93',
          "OP_SUB": b'\x94',
          "OP_MUL": b'\x95',
          "OP_DIV": b'\x96',
          "OP_MOD": b'\x97',
          "OP_LSHIFT": b'\x98',
          "OP_RSHIFT": b'\x99',
          "OP_BOOLAND": b'\x9a',
          "OP_BOOLOR": b'\x9b',
          "OP_NUMEQUAL": b'\x9c',
          "OP_NUMEQUALVERIFY": b'\x9d',
          "OP_NUMNOTEQUAL": b'\x9e',
          "OP_LESSTHAN": b'\x9f',
          "OP_GREATERTHAN": b'\xa0',
          "OP_LESSTHANOREQUAL": b'\xa1',
          "OP_GREATERTHANOREQUAL": b'\xa2',
          "OP_MIN": b'\xa3',
          "OP_MAX": b'\xa4',
          "OP_WITHIN": b'\xa5',
          "OP_RIPEMD160": b'\xa6',
          "OP_SHA1": b'\xa7',
          "OP_SHA256": b'\xa8',
          "OP_HASH160": b'\xa9',
          "OP_HASH256": b'\xaa',
          "OP_CODESEPARATOR": b'\xab',
          "OP_CHECKSIG": b'\xac',
          "OP_CHECKSIGVERIFY": b'\xad',
          "OP_CHECKMULTISIG": b'\xae',
          "OP_CHECKMULTISIGVERIFY": b'\xaf',
          "OP_NOP1": b'\xb0',
          "OP_NOP2": b'\xb1',
          "OP_NOP3": b'\xb2',
          "OP_NOP4": b'\xb3',
          "OP_NOP5": b'\xb4',
          "OP_NOP6": b'\xb5',
          "OP_NOP7": b'\xb6',
          "OP_NOP8": b'\xb7',
          "OP_NOP9": b'\xb8',
          "OP_NOP10": b'\xb9',
          "OP_NULLDATA": b'\xfc',
          "OP_PUBKEYHASH": b'\xfd',
          "OP_PUBKEY": b'\xfe',
          "OP_INVALIDOPCODE": b'\xff'}

RAW_OPCODE = dict ( (OPCODE[i], i)  for i in OPCODE   )

DISABLED_OPCODE = set ((
           # OPCODE["OP_RETURN"],
           OPCODE["OP_CAT"],
           OPCODE["OP_SUBSTR"],
           OPCODE["OP_LEFT"],
           OPCODE["OP_RIGHT"],
           OPCODE["OP_LEFT"],
           OPCODE["OP_LEFT"],
           OPCODE["OP_AND"],
           OPCODE["OP_OR"],
           OPCODE["OP_XOR"],
           OPCODE["OP_2MUL"],
           OPCODE["OP_2DIV"],
           OPCODE["OP_MUL"],
           OPCODE["OP_DIV"],
           OPCODE["OP_MOD"],
           OPCODE["OP_LSHIFT"],
           OPCODE["OP_RSHIFT"],
           OPCODE["OP_RESERVED"],
           # OPCODE["OP_VER"],
           OPCODE["OP_VERIF"],
           OPCODE["OP_VERNOTIF"],
           OPCODE["OP_RESERVED1"],
           OPCODE["OP_RESERVED2"],
           OPCODE["OP_PUBKEYHASH"],
           OPCODE["OP_PUBKEY"],
           OPCODE["OP_INVALIDOPCODE"]
                             ))