Question: What is the speedup achieved by adding this new instruction? In your calculation, assume that the CPI of the original program (without the new instruction)

What is the speedup achieved by adding this new instruction? In your calculation, assume that the CPI of the original program (without the new instruction) is 1.

The last problem in this exercise assumes that each use of the new instruction replaces the given number of original instructions, that the replacement can be made once in the given number of original instructions, and that each time the new instruction is executed the given number of extra stall cycles is added to the program’s execution time: a. b. Replaces 2 3 Once in every 30 40 Extra Stall Cycles 2 1

a. b. Replaces 2 3 Once in every 30 40 Extra Stall Cycles 2 1

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