w2c2

Looks like there is a project to transpile WASM w/ WASI APIs to portable C: https://github.com/turbolent/w2c2 Sadly it doesn't seem to support the networking parts of WASI, though. If it did, then it might even be possible to port all the way back to Cheetah

For AOT, the simplest approach, that actually produces the fastest native code, is to naively translate WASM opcodes to C. This is for example what W2C2 does: https://github.com/turbolent/w2c2

RustPython for DOS This uses https://github.com/turbolent/w2c2 to convert RustPython, built for the wasm32-wasi platform, to C89, which is then compiled with DJGPP and linked to the w2c2 wasi runtime library. rustpython-nofreeze.exe is built without the freeze-stdlib feature, so it does not have the stdlib. rustpython-freeze.exe is built with freeze-stdlib, so the standard library is there and usable. Both need CWSDPMI.EXE, to provide the 32-bit runtime.

> but i do not see you offering me a WASM runtime for the 8051 either As long as there’s a C compiler for it, just use https://github.com/WebAssembly/wabt/blob/main/wasm2c/README.... or https://github.com/turbolent/w2c2 That way, you get the portability of C, the optimisation power of GCC or your favourite C compiler and the portablity and determinism of WASM! Obviously there’s some overhead but there are definitely situations where this is a good option, especially where there’s a compiler available for WASM but not for whatever obscure platform you want to use

There's not much data in the performance section of the front-page readme of the repo, but the one bullet point there seems promising: > Coremark 1.0: ~7% slower than native [0] [0] https://github.com/turbolent/w2c2#performance