Computer oRGAnization

Q4. 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: Aad addi not 20% 20% 0% beq lw sw 25% 25% 10% 4.5.1 [10] $4.3>In what fraction of all cycles is the data memory used? 4.5.2 (10] $4.3>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