There is a lot of space between interpreters and a full JIT that is under-explored. Because developers typically skip straight to a JIT when they find a interpr

There is a lot of space between interpreters and a full JIT that is under-explored. Because developers typically skip straight to a JIT when they find a interpreter isn't fast enough. Dolphin does have the cached interpreter, which eliminates some of the decoding overhead of a traditional interpreter, but I think you could go a lot further. Convert the PowerPC instructions to a optimal bytecode and apply various optimisations to that bytecode (function inlining, constant propagation). Common pairs and sequences of instructions can be replaced with a single bytecode implementation. Given how fast Apple's cpu cores are, I suspect it might be possible to get a optimising bytecode interpreter fast enough so GameCube and other 6th gen console emulators can run at full speed.