Data Dependencies and Hazards CO

Question

I 1 : R 1 = 100

I 2 : R 1 = R 2 + R 4

I 3 : R 2 = R 4 + 25

I 4 : R 4 = R 1 + R 3

I 5 : R 1 = R 1 + 30

 

Calculate sum of (WAR, RAW and WAW) dependencies the above instructions.

I'm getting 8 : RAW -2 WAW -3 WAR - 3

given is 6.  RAW -0 WAW -3 WAR - 3

I4 - I2 and I5 - I2 are not RAW hazards ??

Comments

Yup! Thanks I got the correct answers now :)

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I am very confused with these now! Please someone comment on RAW hazards and dependencies both! Need it urgently..

Also, do comment on WAW and WAR dependencies and hazards BOTH..

Troubling me a lot!

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@Debashish Deka Sir Please help!!