All is possible with FASM I believe.

I was thinking of this. It would be a nice idea to implement a sort of virtual web CPU with opcodes, registers and the like. So the actual script would be a compiled bytecode binary script interpreted at run time.

Above the bytecode layer would be the actual typed source code.

Of course the interpreter would be configurable. There would be a list of privileged opcodes also so just in case a server owner decided to turn off some functionality. i.e shared servers

It's actually a nice idea if you think about it.