4. List the values on the control signals for the following instructions. The MIPS architecture and instruction formats studied in class are shown below for reference. Your answer needs to be 1, 0, or X for each signal (a 0 or 1 will not be accepted as a substitute for X) MemtoReg MemWriteBranchALUSrc RegDst RegWrite sub r2, r5, r23 beq rl, r3, L2 sw rl, 36(r4) lw r3,100(r6) addi r2,rl4,-24 j L3 ontro Unit Write ranch PCSrc Op Funct LUSre Dst Write CLK WE3 Zero WE A1 RD1 A RD Instr Instruction ? ALUResult ReadData A RD Data A2 ?? WD3 File RD2 Register iteData Memory WD WriteReg Signimm Sign Extend