Enum evm::Instruction

#[repr(u8)]
pub enum Instruction {
    STOP,
    ADD,
    MUL,
    SUB,
    DIV,
    SDIV,
    MOD,
    SMOD,
    ADDMOD,
    MULMOD,
    EXP,
    SIGNEXTEND,
    LT,
    GT,
    SLT,
    SGT,
    EQ,
    ISZERO,
    AND,
    OR,
    XOR,
    NOT,
    BYTE,
    SHL,
    SHR,
    SAR,
    SHA3,
    ADDRESS,
    BALANCE,
    ORIGIN,
    CALLER,
    CALLVALUE,
    CALLDATALOAD,
    CALLDATASIZE,
    CALLDATACOPY,
    CODESIZE,
    CODECOPY,
    GASPRICE,
    EXTCODESIZE,
    EXTCODECOPY,
    RETURNDATASIZE,
    RETURNDATACOPY,
    BLOCKHASH,
    COINBASE,
    TIMESTAMP,
    NUMBER,
    DIFFICULTY,
    GASLIMIT,
    POP,
    MLOAD,
    MSTORE,
    MSTORE8,
    SLOAD,
    SSTORE,
    JUMP,
    JUMPI,
    PC,
    MSIZE,
    GAS,
    JUMPDEST,
    PUSH1,
    PUSH2,
    PUSH3,
    PUSH4,
    PUSH5,
    PUSH6,
    PUSH7,
    PUSH8,
    PUSH9,
    PUSH10,
    PUSH11,
    PUSH12,
    PUSH13,
    PUSH14,
    PUSH15,
    PUSH16,
    PUSH17,
    PUSH18,
    PUSH19,
    PUSH20,
    PUSH21,
    PUSH22,
    PUSH23,
    PUSH24,
    PUSH25,
    PUSH26,
    PUSH27,
    PUSH28,
    PUSH29,
    PUSH30,
    PUSH31,
    PUSH32,
    DUP1,
    DUP2,
    DUP3,
    DUP4,
    DUP5,
    DUP6,
    DUP7,
    DUP8,
    DUP9,
    DUP10,
    DUP11,
    DUP12,
    DUP13,
    DUP14,
    DUP15,
    DUP16,
    SWAP1,
    SWAP2,
    SWAP3,
    SWAP4,
    SWAP5,
    SWAP6,
    SWAP7,
    SWAP8,
    SWAP9,
    SWAP10,
    SWAP11,
    SWAP12,
    SWAP13,
    SWAP14,
    SWAP15,
    SWAP16,
    LOG0,
    LOG1,
    LOG2,
    LOG3,
    LOG4,
    CREATE,
    CALL,
    CALLCODE,
    RETURN,
    DELEGATECALL,
    CREATE2,
    REVERT,
    STATICCALL,
    SUICIDE,
}

Virtual machine bytecode instruction.

Variants

STOP

halts execution

ADD

addition operation

MUL

mulitplication operation

SUB

subtraction operation

DIV

integer division operation

SDIV

signed integer division operation

MOD

modulo remainder operation

SMOD

signed modulo remainder operation

ADDMOD

unsigned modular addition

MULMOD

unsigned modular multiplication

EXP

exponential operation

SIGNEXTEND

extend length of signed integer

LT

less-than comparision

GT

greater-than comparision

SLT

signed less-than comparision

SGT

signed greater-than comparision

EQ

equality comparision

ISZERO

simple not operator

AND

bitwise AND operation

OR

bitwise OR operation

XOR

bitwise XOR operation

NOT

bitwise NOT opertation

BYTE

retrieve single byte from word

SHL

shift left operation

SHR

logical shift right operation

SAR

arithmetic shift right operation

SHA3

compute SHA3-256 hash

ADDRESS

get address of currently executing account

BALANCE

get balance of the given account

ORIGIN

get execution origination address

CALLER

get caller address

CALLVALUE

get deposited value by the instruction/transaction responsible for this execution

CALLDATALOAD

get input data of current environment

CALLDATASIZE

get size of input data in current environment

CALLDATACOPY

copy input data in current environment to memory

CODESIZE

get size of code running in current environment

CODECOPY

copy code running in current environment to memory

GASPRICE

get price of gas in current environment

EXTCODESIZE

get external code size (from another contract)

EXTCODECOPY

copy external code (from another contract)

RETURNDATASIZE

get the size of the return data buffer for the last call

RETURNDATACOPY

copy return data buffer to memory

BLOCKHASH

get hash of most recent complete block

COINBASE

get the block's coinbase address

TIMESTAMP

get the block's timestamp

NUMBER

get the block's number

DIFFICULTY

get the block's difficulty

GASLIMIT

get the block's gas limit

POP

remove item from stack

MLOAD

load word from memory

MSTORE

save word to memory

MSTORE8

save byte to memory

SLOAD

load word from storage

SSTORE

save word to storage

JUMP

alter the program counter

JUMPI

conditionally alter the program counter

PC

get the program counter

MSIZE

get the size of active memory

GAS

get the amount of available gas

JUMPDEST

set a potential jump destination

PUSH1

place 1 byte item on stack

PUSH2

place 2 byte item on stack

PUSH3

place 3 byte item on stack

PUSH4

place 4 byte item on stack

PUSH5

place 5 byte item on stack

PUSH6

place 6 byte item on stack

PUSH7

place 7 byte item on stack

PUSH8

place 8 byte item on stack

PUSH9

place 9 byte item on stack

PUSH10

place 10 byte item on stack

PUSH11

place 11 byte item on stack

PUSH12

place 12 byte item on stack

PUSH13

place 13 byte item on stack

PUSH14

place 14 byte item on stack

PUSH15

place 15 byte item on stack

PUSH16

place 16 byte item on stack

PUSH17

place 17 byte item on stack

PUSH18

place 18 byte item on stack

PUSH19

place 19 byte item on stack

PUSH20

place 20 byte item on stack

PUSH21

place 21 byte item on stack

PUSH22

place 22 byte item on stack

PUSH23

place 23 byte item on stack

PUSH24

place 24 byte item on stack

PUSH25

place 25 byte item on stack

PUSH26

place 26 byte item on stack

PUSH27

place 27 byte item on stack

PUSH28

place 28 byte item on stack

PUSH29

place 29 byte item on stack

PUSH30

place 30 byte item on stack

PUSH31

place 31 byte item on stack

PUSH32

place 32 byte item on stack

DUP1

copies the highest item in the stack to the top of the stack

DUP2

copies the second highest item in the stack to the top of the stack

DUP3

copies the third highest item in the stack to the top of the stack

DUP4

copies the 4th highest item in the stack to the top of the stack

DUP5

copies the 5th highest item in the stack to the top of the stack

DUP6

copies the 6th highest item in the stack to the top of the stack

DUP7

copies the 7th highest item in the stack to the top of the stack

DUP8

copies the 8th highest item in the stack to the top of the stack

DUP9

copies the 9th highest item in the stack to the top of the stack

DUP10

copies the 10th highest item in the stack to the top of the stack

DUP11

copies the 11th highest item in the stack to the top of the stack

DUP12

copies the 12th highest item in the stack to the top of the stack

DUP13

copies the 13th highest item in the stack to the top of the stack

DUP14

copies the 14th highest item in the stack to the top of the stack

DUP15

copies the 15th highest item in the stack to the top of the stack

DUP16

copies the 16th highest item in the stack to the top of the stack

SWAP1

swaps the highest and second highest value on the stack

SWAP2

swaps the highest and third highest value on the stack

SWAP3

swaps the highest and 4th highest value on the stack

SWAP4

swaps the highest and 5th highest value on the stack

SWAP5

swaps the highest and 6th highest value on the stack

SWAP6

swaps the highest and 7th highest value on the stack

SWAP7

swaps the highest and 8th highest value on the stack

SWAP8

swaps the highest and 9th highest value on the stack

SWAP9

swaps the highest and 10th highest value on the stack

SWAP10

swaps the highest and 11th highest value on the stack

SWAP11

swaps the highest and 12th highest value on the stack

SWAP12

swaps the highest and 13th highest value on the stack

SWAP13

swaps the highest and 14th highest value on the stack

SWAP14

swaps the highest and 15th highest value on the stack

SWAP15

swaps the highest and 16th highest value on the stack

SWAP16

swaps the highest and 17th highest value on the stack

LOG0

Makes a log entry, no topics.

LOG1

Makes a log entry, 1 topic.

LOG2

Makes a log entry, 2 topics.

LOG3

Makes a log entry, 3 topics.

LOG4

Makes a log entry, 4 topics.

CREATE

create a new account with associated code

CALL

message-call into an account

CALLCODE

message-call with another account's code only

RETURN

halt execution returning output data

DELEGATECALL

like CALLCODE but keeps caller's value and sender

CREATE2

create a new account and set creation address to sha3(sender + sha3(init code)) % 2**160

REVERT

stop execution and revert state changes. Return output data.

STATICCALL

like CALL but it does not take value, nor modify the state

SUICIDE

halt execution and register account for later deletion

Methods

impl Instruction

pub fn from_u8(value: u8) -> Option<Self>

Convert from u8 to the given enum

impl Instruction

pub fn is_push(&self) -> bool

Returns true if given instruction is PUSHN instruction.

pub fn push_bytes(&self) -> Option<usize>

Returns number of bytes to read for PUSHN instruction PUSH1 -> 1

pub fn dup_position(&self) -> Option<usize>

Returns stack position of item to duplicate DUP1 -> 0

pub fn swap_position(&self) -> Option<usize>

Returns stack position of item to SWAP top with SWAP1 -> 1

pub fn log_topics(&self) -> Option<usize>

Returns number of topics to take from stack LOG0 -> 0

pub fn info(&self) -> &'static InstructionInfo

Returns the instruction info.

Trait Implementations

impl Eq for Instruction

impl PartialEq for Instruction

fn eq(&self, other: &Instruction) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Ord for Instruction

fn cmp(&self, other: &Instruction) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl PartialOrd for Instruction

fn partial_cmp(&self, other: &Instruction) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Clone for Instruction

fn clone(&self) -> Instruction

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Instruction

impl Debug for Instruction

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.