Question: Q3. [3 pt] How data dependences affect execution in the basic 5-stage pipeline described in Zybook Section 4.5 (An overview ofpipelining). Problems in this exercise

Q3. [3 pt] How data dependences affect execution in the basic

Q3. [3 pt] How data dependences affect execution in the basic 5-stage pipeline described in Zybook Section 4.5 (An overview ofpipelining). Problems in this exercise refer to the following sequence of instructions etrl, r2, r3 Also, assume the following cycle times for each of the options related to forwarding With Full Only 250ps 300ps 290ps A. Indicate dependences and their type B. Assume there is no forwarding in this pipelined processor. Indicate hazards C. Assume there is full forwarding. Indicate hazards and add NOP instructions D. What is the total execution time of this instruction sequence without and add nop instructions to eliminate them to eliminate them forwarding and with full forwarding? What is the speedup achieved by adding full forwarding to a pipeline thathadno forwarding? forwarding only (no forwarding from the MEM to theEX stage) ALU forwarding? Whatis the speedup over a no-forwarding pipeline? E. Add nop instructions to this code to eliminate hazards if there is ALU-ALU F. What is the total execution time of this instruction sequence with only ALU

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