I know it’s kind of the Ethereum convention to add new cryptographic primitives as precompiles, but why? Why does the kzg point evaluation function have to be called via this round-about way using memory + staticcall?
There’s almost a full “row” of EVM instructions (0x21-0x2f) that have remained unclaimed so far and that could be allocated to important functions such as those required for this EIP.
Opcodes 0x21-0x26 are planned to be claimed by EVMMAX (EIP-6601) so 0x27 might be a good next candidate for point_evaluation function with similar semantics, popping 6 EVM words from the stack for the function and pushing the returndata.
Another question I have is why the function is returning constants and not a success flag / nothing. What’s the intention behind the function returning two constants?