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for the next few questions, examine the following code: 1 add x1, x2, x3 2 sub x2, x1, x5 3 ldur x8, [x5, 0] 4 add x7, x8, x6 assuming hardware hazard detection and no forwarding hardware, what is the cpi of this code (you may assume that this is in the middle of a long string of instructions so initial pipeline fill time is 0).

Respuesta :

Critical path index (cpi) for all is 2 (with margin: 0), ldur has 2, and all are 2.

What does computer architecture's hazard detection entail?

In the field of central processing unit (CPU) design, risks are issues with the instruction pipeline in CPU microarchitectures when the subsequent instruction cannot run in the following clock cycle, which may result in inaccurate computations.

Hazard detection unit what is it?

The PC and IF/ID register writing as well as the multiplexor that selects between the genuine control values and all 0s are all controlled by the hazard detecting unit. In the event that the load-use hazard test yields positive results, the hazard detection unit stalls and deasserts the control fields.

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