Timing Variation-Aware Custom Instruction Extension Technique

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Provided by: edaa
Topic: Hardware
Format: PDF
In this paper, the authors propose a technique for Custom Instruction (CI) extension considering process variations. It bridges the gap between the high level custom instruction extension and chip fabrication in nanotechnologies. In the proposed method, instead of using the conventional Static Timing Analysis (STA), Statistical Static Timing analysis (SSTA) which in turn results in a probabilistic approach to identifying and selecting different parts of the CI extension is utilized. More precisely, they use the delay Probability Density Function (PDF) of the CIs in identification and selection phases of the CI extension. In the identification phase, the delay of each CI is modeled by PDF whereas the performance yield is added as a constraint.
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