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But to be clear, the JIT can actually target Wasm? Like it generates new Wasm modules on the fly and loads them with the browser's WebAssembly API? EDIT: Never

But to be clear, the JIT can actually target Wasm? Like it generates new Wasm modules on the fly and loads them with the browser's WebAssembly API? EDIT: Nevermind I misread, duh (thought you were refering to the input binary format rather than the target architecture). Still, very cool.

jart 4y ago
The binary format that Blinkenlights executes is x86_64. The binary format that it generates for the purposes of JIT is x86_64 or aarch64. I'd like to add WASM to the list of JITable formats if it's possible. Currently, only about ~10 lines of handwritten assembly needed to be written per target architecture. Blink also needs a way to generate functions calls, plus an instruction length decoder. I currently know very little about WASM, but if someone else does, I'm hoping I've made it relatively straightforward to contribute JIT support.