Question: Add NOP instructions to this code to eliminate hazards if there is ALU-ALU forwarding only (no forwarding from the MEM to the EX stage). In

Add NOP instructions to this code to eliminate hazards if there is ALU-ALU forwarding only (no forwarding from the MEM to the EX stage).


In this exercise, we examine how data dependences affect execution in the basic 5-stage pipeline described in Section 4.5. Problems in this exercise refer to the following sequence of instructions:

5 stage pipeline described in Section 4.5

The same principles apply to processors where we pipeline instruction execution. MIPS instructions classically take five steps:
1. Fetch instruction from memory.
2. Read registers while decoding the instruction. The regular format of MIPS instructions allows reading and decoding to occur simultaneously.
3. Execute the operation or calculate an address.
4. Access an operand in data memory.
5. Write the result into a register.29 b. SW R16,-100 (R6) LW R4,8(R16) ADD R5, R4, R4 OR R1, R2, R3 OR R2, R1, R4 OR R1, R1, R2 Instruction

29 b. SW R16,-100 (R6) LW R4,8(R16) ADD R5, R4, R4 OR R1, R2, R3 OR R2, R1, R4 OR R1, R1, R2 Instruction Sequence

Step by Step Solution

3.47 Rating (154 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

User A signal from this set returns through the pipeline Which signal ... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Computer Organization Design Questions!