They actually made a version that generated asm.js. Unfortunately that was before asm.js was stable and they haven't updated it since so it no longer generates

They actually made a version that generated asm.js. Unfortunately that was before asm.js was stable and they haven't updated it since so it no longer generates valid code. The language and generator were simple enough to use in a browser-only environment so it's a shame there was never more interest in it. It would've been nice to be able to fool around with asm.js without having to set up a dev environment, which isn't possible in some circumstances.