(a) in aduition to ALUUp, wnicn controi signais are required ior iw, ada, Deq, and slt, respectively? List the values of them individually. (b) For add, the data path is PCIM Register File ALU Register File. What are the ones for the other 3 instructions? 2. Transform 0.5 and 0.4375 into binary normalized scientific notation. Perform addition and show all the details in 4 steps. 3. Consider the MIPS codes below, which are executed in a 5 -stage pipeline with forwarding. (a) Is there still any hazard? What kind? How many? Where? (b) Rearrange the instructions to avoid stalls. (c) Before and after the instruction scheduling, how many clock cycles are needed for this code segment? lw St1,0(Tt0) lw St2,4(St0) add $t3,St1,St2 sw $t3,12(t0) lw $t4,8(St0) add $t5,St1,St4 sw $t5,16($t0)