MIP 3 - Linear EVM memory cost

MIPs
5

  1. Expansion cost remains in terms of 32 byte word expansion. This will be defined more explicitly in the MIP.

  2. EIP-7686 and EIP-7923 are designed for ethereum execution specifically. For example in EIP-7686, it defines a strict bound on memory expansion via gas. This defines the amount of expandable memory to be linearly dependent on the amount of gas forwarded in the call. This is not compatible to the constraints of Monad execution. As it would cause a higher memory footprint per transaction.

  3. MSIZE semantics are unchanged. It returns the size of active memory in bytes. So the case where caller frame allocates limit - 1byte memory is rounded up to the limit memory. The child call would not have any remaining memory to allocate.