Hello, I have questions to the design and spec:
1. How does the call which exceeds memory exit? revert or exceptionally halt? If revert, does the gas to extend memory get charged before reverting? and other instruction gas charges (esp. *CALL)? exceptionally halt is more consistent with current OOM behavior (out-of-gas), but revert is more friendly. The spec says “revert” but I want to confirm that’s what was meant and spec out the fine details.
2. For all calculation related to memory limit, the memory size isn’t rounded up to the nearest word, i.e. if caller frame allocates `limit - 1byte` memory, callee frame can still allocate `1byte` of memory? This is in the spec, but want to confirm.