WATaBoy Project JIT-Compiles Game Boy Instructions to WebAssembly

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A developer has built WATaBoy, a Game Boy emulator that uses just-in-time compilation to translate Game Boy instructions into WebAssembly (WASM). The project explores an unconventional approach to browser-based emulation by generating WASM bytecode at runtime rather than relying on a traditional interpreter loop. According to the author's blog post, this JIT-based method outperforms a native interpreter in execution speed. The project demonstrates that WebAssembly can serve not just as a compilation target but also as a dynamic runtime code generation format for emulation purposes.

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