In this exercise, we examine how data dependencies affect execution in the basic 5-stage pipeline described in COD Section 4.5 (An overview of pipelining). Problems in this exercise refer to the following sequence of instructions: (1) add St1, St2, St3 2) sub St2, Stl, St4 3) add St1, St1, St2 Assume there is no forwarding in this pipelined processor. a) Write the sequence of instructions and include NOP (no operation dummy instructions) to eliminate any hazards. b) How many cycles will it take to process all instructions?
In this exercise, we examine how data dependencies affect execution in the basic 5-stage pipeline described in COD Section 4.5 (An overview of pipelining). Problems in this exercise refer to the following sequence of instructions: (1) add St1, St2, St3 2) sub St2, Stl, St4 3) add St1, St1, St2 Assume there is no forwarding in this pipelined processor. a) Write the sequence of instructions and include NOP (no operation dummy instructions) to eliminate any hazards. b) How many cycles will it take to process all instructions?
Computer Networking: A Top-Down Approach (7th Edition)
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ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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![No Forwarding
In this exercise, we examine how data dependencies affect execution in the basic 5-stage pipeline
described in COD Section 4.5 (An overview of pipelining).
Problems in this exercise refer to the following sequence of instructions:
1) add St1, $t2, St3
2) sub St2, $t1, St4
3) add St1, $t1, St2
Assume there is no forwarding in this pipelined processor.
a) Write the sequence of instructions and include NOP (no operation dummy instructions) to
eliminate any hazards.
b) How many cycles will it take to process all instructions?
Hint: Remember that only RAW dependencies matter in a pipeline.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F95092e9a-4e90-4692-9f4c-4710a28d8f83%2F7b9099f1-d553-4e87-a49f-f4681e81b1cc%2F1chjxy2_processed.png&w=3840&q=75)
Transcribed Image Text:No Forwarding
In this exercise, we examine how data dependencies affect execution in the basic 5-stage pipeline
described in COD Section 4.5 (An overview of pipelining).
Problems in this exercise refer to the following sequence of instructions:
1) add St1, $t2, St3
2) sub St2, $t1, St4
3) add St1, $t1, St2
Assume there is no forwarding in this pipelined processor.
a) Write the sequence of instructions and include NOP (no operation dummy instructions) to
eliminate any hazards.
b) How many cycles will it take to process all instructions?
Hint: Remember that only RAW dependencies matter in a pipeline.
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