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Improve wording on unreachable sections based on EIP-4750 #123

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May 29, 2024
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Improve wording on unreachable sections based on EIP-4750 #123

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2 changes: 1 addition & 1 deletion spec/eof.md
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Expand Up @@ -291,7 +291,7 @@ The following instructions are introduced in EOF code:
- `RETURNCONTRACT` the subcontainer pointed to `deploy_container_index` must be a "runtime" subcontainer, that is, it *must not* contain a `RETURNCONTRACT` instruction.
- `DATALOADN`'s `immediate + 32` must be within `pre_deploy_data_size` (see [Data Section Lifecycle](#data-section-lifecycle))
- the part of the data section which exceeds these bounds (the `dynamic_aux_data` portion) needs to be accessed using `DATALOAD` or `DATACOPY`
- no unreachable sections are allowed, i.e. every section is referenced by at least one non-recursive `CALLF` or `JUMPF`, and section 0 is implicitly reachable.
- no unreachable code sections are allowed, i.e. every code section can be reached from the 0th code section with a series of CALLF / JUMPF instructions, and section 0 is implicitly reachable.
- it is an error for a container to contain both `RETURNCONTRACT` and either of `RETURN` or `STOP`.
- it is an error for a subcontainer to never be referenced in code sections of its parent container
- for terminology purposes, the following concepts are defined:
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