If all math commands have OPCODE 000000, then based on the FUNCT field, how many different instructions can there be with OPCODE 0? QUESTION 4 In what hardware definition language are the operation formulas written in? Type in one of the following or "None" if none.: VDHL, Verilog, C, MIPS Assembler. QUESTION 5 How many registers are set aside for the sole purpose of a subroutine passing back its result? Answer as an integer