much faster unsigned clamp for VMACU/MULU, small VMADN jump
much faster unsigned clamp for VMACU/MULU, small VMADN jump

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