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Consider the following instructions.
I1 : R1 = 100
I2 : R1 = R2 + R4
I3 : R2 = R4 + 25
I4 : R4 = R1 + R3
I5 : R1 = R1 + 30
Calculate sum of (WAR, RAW and WAW) dependencies the above instructions.

a. 10
b. 12
c. 6

d.14
asked in CO & Architecture by (307 points)   | 31 views

Plz check this link..Formal method to find number of RAW , WAR and WAW dependencies..

http://gateoverflow.in/85255/pipeline_hazard

A dependency is nothing but a "potential hazard" meaning it need not be a hazard always..

Thank you. sir.
What is the given answer. I am getting 9.
given ans=6

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