SELF DOUBT

Question

	S1	S2	S3	S4
I1:	1	2	1	2
I2:	2	1	2	1
I3:	1	1	2	1
I4:	2	1	2	1

 

Consider a pipeline processor with 4 stages S1 to S4. We want to execute the following loop

for (i = 1; i < = 10; i++) 
    {I1, I2, I3, I4}

The output of  I1 for i = 2 will be available after

1. 11 ns
2. 12ns
3. 13 ns
4. 28 ns

Comments

Hemanth_13 please explain reasons for 8th cycle of i=1 in 2nd loop.

i kind of know concept but not sure

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Instead of stall if I would have written s2 there I1's S2 might be picked by S3 stage rather than I4's to avoid this confusion the S2 is delayed for a cycle.

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 Deepanshu &  Magma

Check the below question

https://gateoverflow.in/260963/test-series