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rust-bitcoin-unsafe-fast/src/blockdata/opcodes.rs

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Initial commit, move into Cargo
2014-07-18 13:56:17 +00:00
// Rust Bitcoin Library
// Written in 2014 by
// Andrew Poelstra <apoelstra@wpsoftware.net>
//
// To the extent possible under law, the author(s) have dedicated all
// copyright and related and neighboring rights to this software to
// the public domain worldwide. This software is distributed without
// any warranty.
//
// You should have received a copy of the CC0 Public Domain Dedication
// along with this software.
// If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
//
//! # Opcodes
//!
//! Bitcoin's script uses a stack-based assembly language. This module defines
Implement script except for crypto opcodes, replace zero_hash by Default Looks like to implement the crypto opcodes I may need to switch from rust-crypto to rust-openssl.. or implement RIPEMD-160 for rust-crypto. In either case I will need to generalize the hash.rs stuff to support other hashes, so I'm committing here as a checkpoint before doing all that.
2014-08-06 02:08:06 +00:00
//! all of the opcodes
Initial commit, move into Cargo
2014-07-18 13:56:17 +00:00
//!
Implement script except for crypto opcodes, replace zero_hash by Default Looks like to implement the crypto opcodes I may need to switch from rust-crypto to rust-openssl.. or implement RIPEMD-160 for rust-crypto. In either case I will need to generalize the hash.rs stuff to support other hashes, so I'm committing here as a checkpoint before doing all that.
2014-08-06 02:08:06 +00:00
#![allow(non_camel_case_types)]
/// Submodule to handle -all- opcodes. Outside of this module we use
/// a restricted set where the push/return/noop/illegal opcodes have
/// a more convienient representation.
pub mod all {
// Heavy stick to translate between opcode types
use std::mem::transmute;
use network::serialize::{SimpleDecoder, SimpleEncoder};
use network::encodable::{ConsensusDecodable, ConsensusEncodable};
// Note: I am deliberately not implementing PartialOrd or Ord on the
// opcode enum. If you want to check ranges of opcodes, etc.,
// write an #[inline] helper function which casts to u8s.
/// A script Opcode
#[deriving(Clone, PartialEq, Eq, Show)]
#[repr(u8)]
pub enum Opcode {
/// Push an empty array onto the stack
OP_PUSHBYTES_0 = 0x0,
/// Push the next byte as an array onto the stack
OP_PUSHBYTES_1 = 0x01,
/// Push the next 2 bytes as an array onto the stack
OP_PUSHBYTES_2 = 0x02,
/// Push the next 2 bytes as an array onto the stack
OP_PUSHBYTES_3 = 0x03,
/// Push the next 4 bytes as an array onto the stack
OP_PUSHBYTES_4 = 0x04,
/// Push the next 5 bytes as an array onto the stack
OP_PUSHBYTES_5 = 0x05,
/// Push the next 6 bytes as an array onto the stack
OP_PUSHBYTES_6 = 0x06,
/// Push the next 7 bytes as an array onto the stack
OP_PUSHBYTES_7 = 0x07,
/// Push the next 8 bytes as an array onto the stack
OP_PUSHBYTES_8 = 0x08,
/// Push the next 9 bytes as an array onto the stack
OP_PUSHBYTES_9 = 0x09,
/// Push the next 10 bytes as an array onto the stack
OP_PUSHBYTES_10 = 0x0a,
/// Push the next 11 bytes as an array onto the stack
OP_PUSHBYTES_11 = 0x0b,
/// Push the next 12 bytes as an array onto the stack
OP_PUSHBYTES_12 = 0x0c,
/// Push the next 13 bytes as an array onto the stack
OP_PUSHBYTES_13 = 0x0d,
/// Push the next 14 bytes as an array onto the stack
OP_PUSHBYTES_14 = 0x0e,
/// Push the next 15 bytes as an array onto the stack
OP_PUSHBYTES_15 = 0x0f,
/// Push the next 16 bytes as an array onto the stack
OP_PUSHBYTES_16 = 0x10,
/// Push the next 17 bytes as an array onto the stack
OP_PUSHBYTES_17 = 0x11,
/// Push the next 18 bytes as an array onto the stack
OP_PUSHBYTES_18 = 0x12,
/// Push the next 19 bytes as an array onto the stack
OP_PUSHBYTES_19 = 0x13,
/// Push the next 20 bytes as an array onto the stack
OP_PUSHBYTES_20 = 0x14,
/// Push the next 21 bytes as an array onto the stack
OP_PUSHBYTES_21 = 0x15,
/// Push the next 22 bytes as an array onto the stack
OP_PUSHBYTES_22 = 0x16,
/// Push the next 23 bytes as an array onto the stack
OP_PUSHBYTES_23 = 0x17,
/// Push the next 24 bytes as an array onto the stack
OP_PUSHBYTES_24 = 0x18,
/// Push the next 25 bytes as an array onto the stack
OP_PUSHBYTES_25 = 0x19,
/// Push the next 26 bytes as an array onto the stack
OP_PUSHBYTES_26 = 0x1a,
/// Push the next 27 bytes as an array onto the stack
OP_PUSHBYTES_27 = 0x1b,
/// Push the next 28 bytes as an array onto the stack
OP_PUSHBYTES_28 = 0x1c,
/// Push the next 29 bytes as an array onto the stack
OP_PUSHBYTES_29 = 0x1d,
/// Push the next 30 bytes as an array onto the stack
OP_PUSHBYTES_30 = 0x1e,
/// Push the next 31 bytes as an array onto the stack
OP_PUSHBYTES_31 = 0x1f,
/// Push the next 32 bytes as an array onto the stack
OP_PUSHBYTES_32 = 0x20,
/// Push the next 33 bytes as an array onto the stack
OP_PUSHBYTES_33 = 0x21,
/// Push the next 34 bytes as an array onto the stack
OP_PUSHBYTES_34 = 0x22,
/// Push the next 35 bytes as an array onto the stack
OP_PUSHBYTES_35 = 0x23,
/// Push the next 36 bytes as an array onto the stack
OP_PUSHBYTES_36 = 0x24,
/// Push the next 37 bytes as an array onto the stack
OP_PUSHBYTES_37 = 0x25,
/// Push the next 38 bytes as an array onto the stack
OP_PUSHBYTES_38 = 0x26,
/// Push the next 39 bytes as an array onto the stack
OP_PUSHBYTES_39 = 0x27,
/// Push the next 40 bytes as an array onto the stack
OP_PUSHBYTES_40 = 0x28,
/// Push the next 41 bytes as an array onto the stack
OP_PUSHBYTES_41 = 0x29,
/// Push the next 42 bytes as an array onto the stack
OP_PUSHBYTES_42 = 0x2a,
/// Push the next 43 bytes as an array onto the stack
OP_PUSHBYTES_43 = 0x2b,
/// Push the next 44 bytes as an array onto the stack
OP_PUSHBYTES_44 = 0x2c,
/// Push the next 45 bytes as an array onto the stack
OP_PUSHBYTES_45 = 0x2d,
/// Push the next 46 bytes as an array onto the stack
OP_PUSHBYTES_46 = 0x2e,
/// Push the next 47 bytes as an array onto the stack
OP_PUSHBYTES_47 = 0x2f,
/// Push the next 48 bytes as an array onto the stack
OP_PUSHBYTES_48 = 0x30,
/// Push the next 49 bytes as an array onto the stack
OP_PUSHBYTES_49 = 0x31,
/// Push the next 50 bytes as an array onto the stack
OP_PUSHBYTES_50 = 0x32,
/// Push the next 51 bytes as an array onto the stack
OP_PUSHBYTES_51 = 0x33,
/// Push the next 52 bytes as an array onto the stack
OP_PUSHBYTES_52 = 0x34,
/// Push the next 53 bytes as an array onto the stack
OP_PUSHBYTES_53 = 0x35,
/// Push the next 54 bytes as an array onto the stack
OP_PUSHBYTES_54 = 0x36,
/// Push the next 55 bytes as an array onto the stack
OP_PUSHBYTES_55 = 0x37,
/// Push the next 56 bytes as an array onto the stack
OP_PUSHBYTES_56 = 0x38,
/// Push the next 57 bytes as an array onto the stack
OP_PUSHBYTES_57 = 0x39,
/// Push the next 58 bytes as an array onto the stack
OP_PUSHBYTES_58 = 0x3a,
/// Push the next 59 bytes as an array onto the stack
OP_PUSHBYTES_59 = 0x3b,
/// Push the next 60 bytes as an array onto the stack
OP_PUSHBYTES_60 = 0x3c,
/// Push the next 61 bytes as an array onto the stack
OP_PUSHBYTES_61 = 0x3d,
/// Push the next 62 bytes as an array onto the stack
OP_PUSHBYTES_62 = 0x3e,
/// Push the next 63 bytes as an array onto the stack
OP_PUSHBYTES_63 = 0x3f,
/// Push the next 64 bytes as an array onto the stack
OP_PUSHBYTES_64 = 0x40,
/// Push the next 65 bytes as an array onto the stack
OP_PUSHBYTES_65 = 0x41,
/// Push the next 66 bytes as an array onto the stack
OP_PUSHBYTES_66 = 0x42,
/// Push the next 67 bytes as an array onto the stack
OP_PUSHBYTES_67 = 0x43,
/// Push the next 68 bytes as an array onto the stack
OP_PUSHBYTES_68 = 0x44,
/// Push the next 69 bytes as an array onto the stack
OP_PUSHBYTES_69 = 0x45,
/// Push the next 70 bytes as an array onto the stack
OP_PUSHBYTES_70 = 0x46,
/// Push the next 71 bytes as an array onto the stack
OP_PUSHBYTES_71 = 0x47,
/// Push the next 72 bytes as an array onto the stack
OP_PUSHBYTES_72 = 0x48,
/// Push the next 73 bytes as an array onto the stack
OP_PUSHBYTES_73 = 0x49,
/// Push the next 74 bytes as an array onto the stack
OP_PUSHBYTES_74 = 0x4a,
/// Push the next 75 bytes as an array onto the stack
OP_PUSHBYTES_75 = 0x4b,
/// Read the next byte as N; push the next N bytes as an array onto the stack
OP_PUSHDATA1 = 0x4c,
/// Read the next 2 bytes as N; push the next N bytes as an array onto the stack
OP_PUSHDATA2 = 0x4d,
/// Read the next 4 bytes as N; push the next N bytes as an array onto the stack
OP_PUSHDATA4 = 0x4e,
/// Push the array [0x80] onto the stack
OP_PUSHNUM_NEG1 = 0x4f,
/// Synonym for OP_RETURN
OP_RESERVED = 0x50,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_1 = 0x51,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_2 = 0x52,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_3 = 0x53,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_4 = 0x54,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_5 = 0x55,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_6 = 0x56,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_7 = 0x57,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_8 = 0x58,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_9 = 0x59,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_10 = 0x5a,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_11 = 0x5b,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_12 = 0x5c,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_13 = 0x5d,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_14 = 0x5e,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_15 = 0x5f,
/// Push the array [0x01] onto the stack
OP_PUSHNUM_16 = 0x60,
/// Does nothing
OP_NOP = 0x61,
/// Synonym for OP_RETURN
OP_VER = 0x62,
/// Pop and execute the next statements if a nonzero element was popped
OP_IF = 0x63,
/// Pop and execute the next statements if a zero element was popped
OP_NOTIF = 0x64,
/// Fail the script unconditionally, does not even need to be executed
OP_VERIF = 0x65,
/// Fail the script unconditionally, does not even need to be executed
OP_VERNOTIF = 0x66,
/// Execute statements if those after the previous OP_IF were not, and vice-versa.
/// If there is no previous OP_IF, this acts as a RETURN.
OP_ELSE = 0x67,
/// Pop and execute the next statements if a zero element was popped
OP_ENDIF = 0x68,
/// If the top value is zero or the stack is empty, fail; otherwise, pop the stack
OP_VERIFY = 0x69,
/// Fail the script immediately. (Must be executed.)
OP_RETURN = 0x6a,
/// Pop one element from the main stack onto the alt stack
OP_TOALTSTACK = 0x6b,
/// Pop one element from the alt stack onto the main stack
OP_FROMALTSTACK = 0x6c,
/// Drops the top two stack items
OP_2DROP = 0x6d,
/// Duplicates the top two stack items as AB -> ABAB
OP_2DUP = 0x6e,
/// Duplicates the two three stack items as ABC -> ABCABC
OP_3DUP = 0x6f,
/// Copies the two stack items of items two spaces back to
/// the front, as xxAB -> ABxxAB
OP_2OVER = 0x70,
/// Moves the two stack items four spaces back to the front,
/// as xxxxAB -> ABxxxx
OP_2ROT = 0x71,
/// Swaps the top two pairs, as ABCD -> CDAB
OP_2SWAP = 0x72,
/// Duplicate the top stack element unless it is zero
OP_IFDUP = 0x73,
/// Push the current number of stack items onto te stack
OP_DEPTH = 0x74,
/// Drops the top stack item
OP_DROP = 0x75,
/// Duplicates the top stack item
OP_DUP = 0x76,
/// Drops the second-to-top stack item
OP_NIP = 0x77,
/// Copies the second-to-top stack item, as xA -> AxA
OP_OVER = 0x78,
/// Pop the top stack element as N. Copy the Nth stack element to the top
OP_PICK = 0x79,
/// Pop the top stack element as N. Move the Nth stack element to the top
OP_ROLL = 0x7a,
/// Rotate the top three stack items, as [top next1 next2] -> [next2 top next1]
OP_ROT = 0x7b,
/// Swap the top two stack items
OP_SWAP = 0x7c,
/// Copy the top stack item to before the second item, as [top next] -> [top next top]
OP_TUCK = 0x7d,
/// Fail the script unconditionally, does not even need to be executed
OP_CAT = 0x7e,
/// Fail the script unconditionally, does not even need to be executed
OP_SUBSTR = 0x7f,
/// Fail the script unconditionally, does not even need to be executed
OP_LEFT = 0x80,
/// Fail the script unconditionally, does not even need to be executed
OP_RIGHT = 0x81,
/// Pushes the length of the top stack item onto the stack
OP_SIZE = 0x82,
/// Fail the script unconditionally, does not even need to be executed
OP_INVERT = 0x83,
/// Fail the script unconditionally, does not even need to be executed
OP_AND = 0x84,
/// Fail the script unconditionally, does not even need to be executed
OP_OR = 0x85,
/// Fail the script unconditionally, does not even need to be executed
OP_XOR = 0x86,
/// Pushes 1 if the inputs are exactly equal, 0 otherwise
OP_EQUAL = 0x87,
/// Returns success if the inputs are exactly equal, failure otherwise
OP_EQUALVERIFY = 0x88,
/// Synonym for OP_RETURN
OP_RESERVED1 = 0x89,
/// Synonym for OP_RETURN
OP_RESERVED2 = 0x8a,
/// Increment the top stack element in place
OP_1ADD = 0x8b,
/// Decrement the top stack element in place
OP_1SUB = 0x8c,
/// Fail the script unconditionally, does not even need to be executed
OP_2MUL = 0x8d,
/// Fail the script unconditionally, does not even need to be executed
OP_2DIV = 0x8e,
/// Multiply the top stack item by -1 in place
OP_NEGATE = 0x8f,
/// Absolute value the top stack item in place
OP_ABS = 0x90,
/// Map 0 to 1 and everything else to 0, in place
OP_NOT = 0x91,
/// Map 0 to 0 and everything else to 1, in place
OP_0NOTEQUAL = 0x92,
/// Pop two stack items and push their sum
OP_ADD = 0x93,
/// Pop two stack items and push the second minus the top
OP_SUB = 0x94,
/// Fail the script unconditionally, does not even need to be executed
OP_MUL = 0x95,
/// Fail the script unconditionally, does not even need to be executed
OP_DIV = 0x96,
/// Fail the script unconditionally, does not even need to be executed
OP_MOD = 0x97,
/// Fail the script unconditionally, does not even need to be executed
OP_LSHIFT = 0x98,
/// Fail the script unconditionally, does not even need to be executed
OP_RSHIFT = 0x99,
/// Pop the top two stack items and push 1 if both are nonzero, else push 0
OP_BOOLAND = 0x9a,
/// Pop the top two stack items and push 1 if either is nonzero, else push 0
OP_BOOLOR = 0x9b,
/// Pop the top two stack items and push 1 if both are numerically equal, else push 0
OP_NUMEQUAL = 0x9c,
/// Pop the top two stack items and return success if both are numerically equal, else return failure
OP_NUMEQUALVERIFY = 0x9d,
/// Pop the top two stack items and push 0 if both are numerically equal, else push 1
OP_NUMNOTEQUAL = 0x9e,
/// Pop the top two items; push 1 if the second is less than the top, 0 otherwise
OP_LESSTHAN = 0x9f,
/// Pop the top two items; push 1 if the second is greater than the top, 0 otherwise
OP_GREATERTHAN = 0xa0,
/// Pop the top two items; push 1 if the second is <= the top, 0 otherwise
OP_LESSTHANOREQUAL = 0xa1,
/// Pop the top two items; push 1 if the second is >= the top, 0 otherwise
OP_GREATERTHANOREQUAL = 0xa2,
/// Pop the top two items; push the smaller
OP_MIN = 0xa3,
/// Pop the top two items; push the larger
OP_MAX = 0xa4,
/// Pop the top three items; if the top is >= the second and < the third, push 1, otherwise push 0
OP_WITHIN = 0xa5,
/// Pop the top stack item and push its RIPEMD160 hash
OP_RIPEMD160 = 0xa6,
/// Pop the top stack item and push its SHA1 hash
OP_SHA1 = 0xa7,
/// Pop the top stack item and push its SHA256 hash
OP_SHA256 = 0xa8,
/// Pop the top stack item and push its RIPEMD(SHA256) hash
OP_HASH160 = 0xa9,
/// Pop the top stack item and push its SHA256(SHA256) hash
OP_HASH256 = 0xaa,
/// Ignore this and everything preceding when deciding what to sign when signature-checking
OP_CODESEPARATOR = 0xab,
/// https://en.bitcoin.it/wiki/OP_CHECKSIG pushing 1/0 for success/failure
OP_CHECKSIG = 0xac,
/// https://en.bitcoin.it/wiki/OP_CHECKSIG returning success/failure
OP_CHECKSIGVERIFY = 0xad,
/// Pop N, N pubkeys, M, M signatures, a dummy (due to bug in reference code), and verify that all M signatures are valid.
/// Push 1 for "all valid", 0 otherwise
OP_CHECKMULTISIG = 0xae,
/// Like the above but return success/failure
OP_CHECKMULTISIGVERIFY = 0xaf,
/// Does nothing
OP_NOP1 = 0xb0,
/// Does nothing
OP_NOP2 = 0xb1,
/// Does nothing
OP_NOP3 = 0xb2,
/// Does nothing
OP_NOP4 = 0xb3,
/// Does nothing
OP_NOP5 = 0xb4,
/// Does nothing
OP_NOP6 = 0xb5,
/// Does nothing
OP_NOP7 = 0xb6,
/// Does nothing
OP_NOP8 = 0xb7,
/// Does nothing
OP_NOP9 = 0xb8,
/// Does nothing
OP_NOP10 = 0xb9,
// Every other opcode acts as OP_RETURN
/// Synonym for OP_RETURN
OP_RETURN_186 = 0xba,
/// Synonym for OP_RETURN
OP_RETURN_187 = 0xbb,
/// Synonym for OP_RETURN
OP_RETURN_188 = 0xbc,
/// Synonym for OP_RETURN
OP_RETURN_189 = 0xbd,
/// Synonym for OP_RETURN
OP_RETURN_190 = 0xbe,
/// Synonym for OP_RETURN
OP_RETURN_191 = 0xbf,
/// Synonym for OP_RETURN
OP_RETURN_192 = 0xc0,
/// Synonym for OP_RETURN
OP_RETURN_193 = 0xc1,
/// Synonym for OP_RETURN
OP_RETURN_194 = 0xc2,
/// Synonym for OP_RETURN
OP_RETURN_195 = 0xc3,
/// Synonym for OP_RETURN
OP_RETURN_196 = 0xc4,
/// Synonym for OP_RETURN
OP_RETURN_197 = 0xc5,
/// Synonym for OP_RETURN
OP_RETURN_198 = 0xc6,
/// Synonym for OP_RETURN
OP_RETURN_199 = 0xc7,
/// Synonym for OP_RETURN
OP_RETURN_200 = 0xc8,
/// Synonym for OP_RETURN
OP_RETURN_201 = 0xc9,
/// Synonym for OP_RETURN
OP_RETURN_202 = 0xca,
/// Synonym for OP_RETURN
OP_RETURN_203 = 0xcb,
/// Synonym for OP_RETURN
OP_RETURN_204 = 0xcc,
/// Synonym for OP_RETURN
OP_RETURN_205 = 0xcd,
/// Synonym for OP_RETURN
OP_RETURN_206 = 0xce,
/// Synonym for OP_RETURN
OP_RETURN_207 = 0xcf,
/// Synonym for OP_RETURN
OP_RETURN_208 = 0xd0,
/// Synonym for OP_RETURN
OP_RETURN_209 = 0xd1,
/// Synonym for OP_RETURN
OP_RETURN_210 = 0xd2,
/// Synonym for OP_RETURN
OP_RETURN_211 = 0xd3,
/// Synonym for OP_RETURN
OP_RETURN_212 = 0xd4,
/// Synonym for OP_RETURN
OP_RETURN_213 = 0xd5,
/// Synonym for OP_RETURN
OP_RETURN_214 = 0xd6,
/// Synonym for OP_RETURN
OP_RETURN_215 = 0xd7,
/// Synonym for OP_RETURN
OP_RETURN_216 = 0xd8,
/// Synonym for OP_RETURN
OP_RETURN_217 = 0xd9,
/// Synonym for OP_RETURN
OP_RETURN_218 = 0xda,
/// Synonym for OP_RETURN
OP_RETURN_219 = 0xdb,
/// Synonym for OP_RETURN
OP_RETURN_220 = 0xdc,
/// Synonym for OP_RETURN
OP_RETURN_221 = 0xdd,
/// Synonym for OP_RETURN
OP_RETURN_222 = 0xde,
/// Synonym for OP_RETURN
OP_RETURN_223 = 0xdf,
/// Synonym for OP_RETURN
OP_RETURN_224 = 0xe0,
/// Synonym for OP_RETURN
OP_RETURN_225 = 0xe1,
/// Synonym for OP_RETURN
OP_RETURN_226 = 0xe2,
/// Synonym for OP_RETURN
OP_RETURN_227 = 0xe3,
/// Synonym for OP_RETURN
OP_RETURN_228 = 0xe4,
/// Synonym for OP_RETURN
OP_RETURN_229 = 0xe5,
/// Synonym for OP_RETURN
OP_RETURN_230 = 0xe6,
/// Synonym for OP_RETURN
OP_RETURN_231 = 0xe7,
/// Synonym for OP_RETURN
OP_RETURN_232 = 0xe8,
/// Synonym for OP_RETURN
OP_RETURN_233 = 0xe9,
/// Synonym for OP_RETURN
OP_RETURN_234 = 0xea,
/// Synonym for OP_RETURN
OP_RETURN_235 = 0xeb,
/// Synonym for OP_RETURN
OP_RETURN_236 = 0xec,
/// Synonym for OP_RETURN
OP_RETURN_237 = 0xed,
/// Synonym for OP_RETURN
OP_RETURN_238 = 0xee,
/// Synonym for OP_RETURN
OP_RETURN_239 = 0xef,
/// Synonym for OP_RETURN
OP_RETURN_240 = 0xf0,
/// Synonym for OP_RETURN
OP_RETURN_241 = 0xf1,
/// Synonym for OP_RETURN
OP_RETURN_242 = 0xf2,
/// Synonym for OP_RETURN
OP_RETURN_243 = 0xf3,
/// Synonym for OP_RETURN
OP_RETURN_244 = 0xf4,
/// Synonym for OP_RETURN
OP_RETURN_245 = 0xf5,
/// Synonym for OP_RETURN
OP_RETURN_246 = 0xf6,
/// Synonym for OP_RETURN
OP_RETURN_247 = 0xf7,
/// Synonym for OP_RETURN
OP_RETURN_248 = 0xf8,
/// Synonym for OP_RETURN
OP_RETURN_249 = 0xf9,
/// Synonym for OP_RETURN
OP_RETURN_250 = 0xfa,
/// Synonym for OP_RETURN
OP_RETURN_251 = 0xfb,
/// Synonym for OP_RETURN
OP_RETURN_252 = 0xfc,
/// Synonym for OP_RETURN
OP_RETURN_253 = 0xfd,
/// Synonym for OP_RETURN
OP_RETURN_254 = 0xfe,
/// Synonym for OP_RETURN
OP_RETURN_255 = 0xff,
}
impl Opcode {
/// Translates a u8 to an Opcode
#[inline]
pub fn from_u8(b: u8) -> Opcode {
unsafe { transmute(b) }
}
/// Classifies an Opcode into a broad class
#[inline]
pub fn classify(&self) -> super::OpcodeClass {
// 17 opcodes
if *self == OP_VERIF || *self == OP_VERNOTIF ||
*self == OP_CAT || *self == OP_SUBSTR ||
*self == OP_LEFT || *self == OP_RIGHT ||
*self == OP_INVERT || *self == OP_AND ||
*self == OP_OR || *self == OP_XOR ||
*self == OP_2MUL || *self == OP_2DIV ||
*self == OP_MUL || *self == OP_DIV || *self == OP_MOD ||
*self == OP_LSHIFT || *self == OP_RSHIFT {
super::IllegalOp
// 11 opcodes
} else if *self == OP_NOP ||
(OP_NOP1 as u8 <= *self as u8 && *self as u8 <= OP_NOP10 as u8) {
super::NoOp
// 75 opcodes
} else if *self == OP_RESERVED || *self == OP_VER || *self == OP_RETURN ||
*self == OP_RESERVED1 || *self == OP_RESERVED2 ||
*self as u8 >= OP_RETURN_186 as u8 {
super::ReturnOp
// 1 opcode
} else if *self == OP_PUSHNUM_NEG1 {
super::PushNum(-1)
// 16 opcodes
} else if OP_PUSHNUM_1 as u8 <= *self as u8 && *self as u8 <= OP_PUSHNUM_16 as u8 {
Fix script bugs (can now fully validate testnet up to multisig)
2014-08-11 02:35:58 +00:00
super::PushNum(1 + *self as int - OP_PUSHNUM_1 as int)
Implement script except for crypto opcodes, replace zero_hash by Default Looks like to implement the crypto opcodes I may need to switch from rust-crypto to rust-openssl.. or implement RIPEMD-160 for rust-crypto. In either case I will need to generalize the hash.rs stuff to support other hashes, so I'm committing here as a checkpoint before doing all that.
2014-08-06 02:08:06 +00:00
// 76 opcodes
} else if *self as u8 <= OP_PUSHBYTES_75 as u8 {
super::PushBytes(*self as uint)
// 60 opcodes
} else {
super::Ordinary(unsafe { transmute(*self) })
}
}
}
impl<D:SimpleDecoder<E>, E> ConsensusDecodable<D, E> for Opcode {
#[inline]
fn consensus_decode(d: &mut D) -> Result<Opcode, E> {
Ok(Opcode::from_u8(try!(d.read_u8())))
}
}
impl<S:SimpleEncoder<E>, E> ConsensusEncodable<S, E> for Opcode {
#[inline]
fn consensus_encode(&self, s: &mut S) -> Result<(), E> {
s.emit_u8(*self as u8)
}
}
/// Empty stack is also FALSE
pub static OP_FALSE: Opcode = OP_PUSHBYTES_0;
/// Number 1 is also TRUE
pub static OP_TRUE: Opcode = OP_PUSHNUM_1;
}
/// Broad categories of opcodes with similar behavior
#[deriving(PartialEq, Eq, Show)]
pub enum OpcodeClass {
/// Pushes the given number onto the stack
PushNum(int),
/// Pushes the given number of bytes onto the stack
PushBytes(uint),
/// Fails the script if executed
ReturnOp,
/// Fails the script even if not executed
IllegalOp,
/// Does nothing
NoOp,
/// Any opcode not covered above
Ordinary(Opcode)
}
macro_rules! ordinary_opcode(
($($op:ident),*) => (
#[repr(u8)]
Implement CHECKSIG and CHECKSIGVERIFY Still need the multisig ops, and p2sh
2014-08-10 19:58:15 +00:00
#[doc(hidden)]
Implement script except for crypto opcodes, replace zero_hash by Default Looks like to implement the crypto opcodes I may need to switch from rust-crypto to rust-openssl.. or implement RIPEMD-160 for rust-crypto. In either case I will need to generalize the hash.rs stuff to support other hashes, so I'm committing here as a checkpoint before doing all that.
2014-08-06 02:08:06 +00:00
#[deriving(Clone, PartialEq, Eq, Show)]
pub enum Opcode {
$( $op = all::$op as u8 ),*
}
);
)
/// "Ordinary" opcodes -- should be 60 of these
ordinary_opcode!(
// pushdata
OP_PUSHDATA1, OP_PUSHDATA2, OP_PUSHDATA4,
// control flow
OP_IF, OP_NOTIF, OP_ELSE, OP_ENDIF, OP_VERIFY,
// stack
OP_TOALTSTACK, OP_FROMALTSTACK,
OP_2DROP, OP_2DUP, OP_3DUP, OP_2OVER, OP_2ROT, OP_2SWAP,
OP_DROP, OP_DUP, OP_NIP, OP_OVER, OP_PICK, OP_ROLL, OP_ROT, OP_SWAP, OP_TUCK,
OP_IFDUP, OP_DEPTH, OP_SIZE,
// equality
OP_EQUAL, OP_EQUALVERIFY,
// arithmetic
OP_1ADD, OP_1SUB, OP_NEGATE, OP_ABS, OP_NOT, OP_0NOTEQUAL,
OP_ADD, OP_SUB, OP_BOOLAND, OP_BOOLOR,
OP_NUMEQUAL, OP_NUMEQUALVERIFY, OP_NUMNOTEQUAL, OP_LESSTHAN,
OP_GREATERTHAN, OP_LESSTHANOREQUAL, OP_GREATERTHANOREQUAL,
OP_MIN, OP_MAX, OP_WITHIN,
// crypto
OP_RIPEMD160, OP_SHA1, OP_SHA256, OP_HASH160, OP_HASH256,
Get OP_MULTISIG working
2014-08-11 04:37:12 +00:00
OP_CODESEPARATOR, OP_CHECKSIG, OP_CHECKSIGVERIFY,
OP_CHECKMULTISIG, OP_CHECKMULTISIGVERIFY
Implement script except for crypto opcodes, replace zero_hash by Default Looks like to implement the crypto opcodes I may need to switch from rust-crypto to rust-openssl.. or implement RIPEMD-160 for rust-crypto. In either case I will need to generalize the hash.rs stuff to support other hashes, so I'm committing here as a checkpoint before doing all that.
2014-08-06 02:08:06 +00:00
)
Initial commit, move into Cargo
2014-07-18 13:56:17 +00:00