An instruction is designated to remain as an invalid instruction.
The invalid instruction can be used as a distinct reason to abort execution.
0xfe is the
INVALID instruction. It can be used to abort the execution (i.e. duplicates as an
This instruction was never used and therefore has no effect on past contracts.
Copyright and related rights waived via CC0.
Please cite this document as:
Alex Beregszaszi, "EIP-141: Designated invalid EVM instruction," Ethereum Improvement Proposals, no. 141, February 2017. [Online serial]. Available: https://eips.ethereum.org/EIPS/eip-141.