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6740c1f084
this one is even harder to document then the last large overhaul. TLDR; - split apart Emit.zig into an Emit.zig and a Lower.zig - created seperate files for the encoding, and now adding a new instruction is as simple as just adding it to a couple of switch statements and providing the encoding. - relocs are handled in a more sane maner, and we have a clear defining boundary between lea_symbol and load_symbol now. - a lot of different abstractions for things like the stack, memory, registers, and others. - we're using x86_64's FrameIndex now, which simplifies a lot of the tougher design process. - a lot more that I don't have the energy to document. at this point, just read the commit itself :p