Template-based circuit understanding

Gascón, Adrià, Subramanyan, Pramod, Dutertre, Bruno, Tiwari, Ashish, Jovanović, Dejan, & Malik, Sharad (2014) Template-based circuit understanding. In Claessen, Koen & Kuncak, Viktor (Eds.) Proceedings of the 14th Conference on Formal Methods in Computer-Aided Design (FMCAD '14), FMCAD Inc, Lausanne, Switzerland, pp. 83-90.

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When verifying or reverse-engineering digital circuits, one often wants to identify and understand small components in a larger system. A possible approach is to show that the sub-circuit under investigation is functionally equivalent to a reference implementation. In many cases, this task is difficult as one may not have full information about the mapping between input and output of the two circuits, or because the equivalence depends on settings of control inputs.

We propose a template-based approach that automates this process. It extracts a functional description for a low-level combinational circuit by showing it to be equivalent to a reference implementation, while synthesizing an appropriate mapping of input and output signals and setting of control signals. The method relies on solving an exists/forall problem using an SMT solver, and on a pruning technique based on signature computation.

Impact and interest:

7 citations in Scopus
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ID Code: 83100
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
ISBN: 9780983567844
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 owned jointly by the authors and FMCAD Inc.
Deposited On: 07 Apr 2015 04:37
Last Modified: 07 Apr 2015 23:19

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