## Preamble

    EIP: 141
    Title: Designated invalid EVM instruction
    Author: Alex Beregszaszi
    Type: Standard Track
    Category: Core
    Status: Accepted
    Created: 2017-02-09

## Abstract

An instruction is designated to remain as an invalid instruction.

## Motivation

The invalid instruction can be used as a distinct reason to abort execution.

## Specification

The opcode `0xfe` is the `INVALID` instruction. It can be used to abort the execution (i.e. duplicates as an `ABORT` instruction).

## Backwards Compatibility

This instruction was never used and therefore has no effect on past contracts.

## Copyright

Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/).