4 5 For the problems in this exercise, assume that there are no pipeline stalls and that the breakdown of executed instructions is as follows add addi not beq lw sw 20 20 0 25 25 10 4 5 1 In what fraction of all cycles is the data memory used 4 5 2 In what fraction of all cycles is the input of the sign extend circuit needed What is this circuit doing in cycles in which its input is not needed

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Question: 4.5 For the problems in this exercise, assume that there are no pipeline stalls and that the breakdown of executed instructions is as follows: add

4.5 For the problems in this exercise, assume that there are no pipeline stalls and that the breakdown of executed instructions is as follows:

add	addi	not	beq	lw	sw
20%	20%	0%	25%	25%	10%

4.5.1 In what fraction of all cycles is the data memory used?

4.5.2 In what fraction of all cycles is the input of the sign-extend circuit needed? What is this circuit doing in cycles in which its input is not needed?

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