F OPIVI I funct6 funct6 000000 V vredsum 000000 V X vwmulu 111000 V F vfnmadd 101010 V F vfnmsub 101100 V F vfnmsub 101100 V X vmsbc 010011 010011 V X vmadd 101001 V X vmulhsu 100110 100111 100111 101000 101000 V F vfmax