assume songs code it as 1 always; implementations are free to change this during compilation, but this should be a compile time flag / optimization; not a concern of song.
The global pattern table is constructed only during compilation. At this point, we can do also all sorts of optimizations / changes e.g. remove unnecessary releases and reuse patterns if there's a pattern already that could be used.
The working principle is similar as before with x86, but instead of outputting .asm, it outputs .wat. This can be compiled into .wasm by using the wat2wasm assembler.
