better jump table using function look-up (smaller & faster)
better jump table using function look-up (smaller & faster)

mupen64plus/mupen64plus-rsp-cxd4,mupen64plus/mupen64plus-rsp-cxd4,8l/rsp,8l/rsp,8l/rsp,mupen64plus/mupen64plus-rsp-cxd4