In theory you could do it directly with the intrinsic system I built for LuaJIT[1]. It would dynamically generated the assembly for a user declared intrinsic\ar

In theory you could do it directly with the intrinsic system I built for LuaJIT[1]. It would dynamically generated the assembly for a user declared intrinsic\arbitrary machine opcode when there first called in the interpreter and the opcode is directly emitted when the code is JIT'ed. I think defining an intrinsic for a system call would just be a matter of setting the correct input and output registers. [1] https://github.com/LuaJIT/LuaJIT/pull/116 https://github.com/LuaJIT/LuaJIT/pull/116