PEEPanEIP #118: EIP-5656: MCOPY - Memory copying instruction

Ethereum Cat Herders Podcast

Resources: ----------------- https://eips.ethereum.org/EIPS/eip-5656https://ethereum-magicians.org/t/eip-... Slides - https://docs.google.com/presentation/... PEEPanEIP - • PEEPanEIP Dencun - • Dencun Check out upcoming EIPs in Peep an EIP series at https://github.com/ethereum-cat-herde... YT Clip - • Got #EVM or #EOF related #EIP or ques... Follow at Twitter -------------------------- axic.eth @alexberegszaszi | Paweł Bylica @chfast | Charles Cooper @big_tech_sux | Pooja Ranjan @poojaranjan19 Topics covered --------------------------- 0:29 - EIP-5656 intro 1:30 - Guests introduction 7:07 - MCOPY 8:02 - MCOPY - Copies EVM Memory 9:30 - MCOPY missing piece 14:48 - How important memory copying is for Vyper? 16:42 - Why? 17:45 - Copying via loop is expensive 20:10 - Identity Precompile cost 22:22 - Anecdotes identity precompile 24:30 - eip2929 made precompile pricing cheaper 26:20 - Technicality about memory copying 29:09 - End of presentation. 29:35 - How do the MCOPY instructions compile into in terms of gas costs to other memories like identity precompile? 32:16 - What benefits do static analyzers and optimizers gain from having a dedicated MCOPY instruction in the EVM? 35:09 - Why 5b instead of 5c as a specific opcode slot? 37:13 - Backward compatibility? 40:02 - EOF will solve some of the problems 41:20 - Security consideration 41:48 - Testing performance of EIP-5656 43:45 - Message for the community from Ipsilon & Vyper