Automated correctness proofs of machine code programs for a commercial microprocessor

  • Robert S. Boyer
  • Yuan Yu
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 607)


We have formally specified a substantial subset of the MC68020, a widely used microprocessor built by Motorola, within the mathematical logic of the automated reasoning system Nqthm, i.e., the Boyer-Moore Theorem Prover [4]. Using this MC68020 specification, we have mechanically checked the correctness of MC68020 machine code programs for Euclid's GCD, Hoare's Quick Sort, binary search, and other well-known algorithms. The machine code for these examples was generated using the Gnu C and the Verdix Ada compilers. We have developed an extensive library of proven lemmas to facilitate automated reasoning about machine code programs. We describe a two stage methodology we use to do our machine code proofs.

Key words

Automated reasoning Nqthm Boyer-Moore Theorem Prover formal program verification object code Gnu Ada 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • Robert S. Boyer
    • 1
  • Yuan Yu
    • 1
  1. 1.Computer Sciences and Mathematics DepartmentsUniversity of Texas at AustinAustin

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