# -*- coding: utf-8 -*-
#
# BitcoinLib - Python Cryptocurrency Library
# Script opcode definitions
# © 2017 - 2021 February - 1200 Web Development <http://1200wd.com/>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
_opcodes = [
("OP_0", 0), ("OP_PUSHDATA1", 76), "OP_PUSHDATA2", "OP_PUSHDATA4", "OP_1NEGATE", "OP_RESERVED", "OP_1",
"OP_2", "OP_3", "OP_4", "OP_5", "OP_6", "OP_7", "OP_8", "OP_9", "OP_10", "OP_11", "OP_12", "OP_13", "OP_14",
"OP_15", "OP_16", "OP_NOP", "OP_VER", "OP_IF", "OP_NOTIF", "OP_VERIF", "OP_VERNOTIF", "OP_ELSE", "OP_ENDIF",
"OP_VERIFY", "OP_RETURN", "OP_TOALTSTACK", "OP_FROMALTSTACK", "OP_2DROP", "OP_2DUP", "OP_3DUP", "OP_2OVER",
"OP_2ROT", "OP_2SWAP", "OP_IFDUP", "OP_DEPTH", "OP_DROP", "OP_DUP", "OP_NIP", "OP_OVER", "OP_PICK", "OP_ROLL",
"OP_ROT", "OP_SWAP", "OP_TUCK", "OP_CAT", "OP_SUBSTR", "OP_LEFT", "OP_RIGHT", "OP_SIZE", "OP_INVERT", "OP_AND",
"OP_OR", "OP_XOR", "OP_EQUAL", "OP_EQUALVERIFY", "OP_RESERVED1", "OP_RESERVED2", "OP_1ADD", "OP_1SUB", "OP_2MUL",
"OP_2DIV", "OP_NEGATE", "OP_ABS", "OP_NOT", "OP_0NOTEQUAL", "OP_ADD", "OP_SUB", "OP_MUL", "OP_DIV", "OP_MOD",
"OP_LSHIFT", "OP_RSHIFT", "OP_BOOLAND", "OP_BOOLOR", "OP_NUMEQUAL", "OP_NUMEQUALVERIFY", "OP_NUMNOTEQUAL",
"OP_LESSTHAN", "OP_GREATERTHAN", "OP_LESSTHANOREQUAL", "OP_GREATERTHANOREQUAL", "OP_MIN", "OP_MAX", "OP_WITHIN",
"OP_RIPEMD160", "OP_SHA1", "OP_SHA256", "OP_HASH160", "OP_HASH256", "OP_CODESEPARATOR", "OP_CHECKSIG",
"OP_CHECKSIGVERIFY", "OP_CHECKMULTISIG", "OP_CHECKMULTISIGVERIFY", "OP_NOP1", "OP_CHECKLOCKTIMEVERIFY",
"OP_CHECKSEQUENCEVERIFY", "OP_NOP4", "OP_NOP5", "OP_NOP6", "OP_NOP7", "OP_NOP8", "OP_NOP9", "OP_NOP10",
("OP_INVALIDOPCODE", 0xFF)
]
def _set_opcodes():
idx = 0
opcodenames = {}
for opcode in _opcodes:
if isinstance(opcode, tuple):
var, idx = opcode
else:
var = opcode
opcodenames.update({idx: var})
setattr(op, var.lower(), idx)
idx += 1
return opcodenames
opcodenames = _set_opcodes()
OP_N_CODES = range(op.op_1, op.op_16)