Glossary
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Glossary of terms used on the wiki.
Decompilation
The term "decompilation" is used to mean the reverse engineering of a binary into high level language that compiles back into a byte-perfect match of the binary.
This is different to non-matching decompilation projects, such as the now defunct re3 project which aimed for functional equivalence but not byte-perfection.
Overlay
Overlays are chunks of code that are loaded at runtime and occupy the same memory address (they are "overlayed"). This approach is commonly used in N64 and PSX games where memory is limited.
Some games, such as OOT, make heavy use of overlays.