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The following sequence of instructions is executed in basic 5 stage pipeline ( F D E M W). Assume data dependency is resolved by Operand Forwarding. Load instruction output present at 4th stage and ALU instruction output is at third stage. Assume each stage takes one cycle.

How many instructions must be inserted to achieve CPI = 1 by using Operand Forwarding ?

A. 3

B. 4

C. 5

D. 6

in CO and Architecture by Loyal (6.9k points)
edited by | 168 views
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The answer is 5 but i am getting 3 i don't understand the approach. Please Help me out here :(
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post your approach and the solution given by ME. Then only we can find out where u made mistake.
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Made Easy Solution

 

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Is the approach Correct ?
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Can i use this approach always ?
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above solution is correct. That is the way u approach it.

Not sure how u approached the solution.

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