A microprocessor evaluation system evaluates a microprocessor circuit by using analysis-specific custom corners that are derived specifically for the analysis of interest. Circuit parameters specific to the analysis of interest are applied to a proposed design to derive the custom corners, which will trigger violations more accurately than corners selected using traditional methods. The custom corners could also be reused in between design phases to reduce redesign simulation time. Local process parameters could be taken into account using worst-case local parameter offsets to detect violations in a far more accurate manner than using generic guard-band budgets.
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