Asm.js is not at all an assembly language. An assembly language has a very close, if not one-to-one relationship to actual machine instructions. Assembly langua

Asm.js is not at all an assembly language. An assembly language has a very close, if not one-to-one relationship to actual machine instructions. Assembly language is by definition tied to a particular architecture and non-portable. I've never heard of an assembly language that doesn't let you directly address architectural registers and memory. Asm.js is just a subset of JS that, when used in blocks, is precompiled. In that sense, it's much more like writing C than assembly (or at least C-like subroutines to be embedded in larger scripts).