The B-book: assigning programs to meanings
The B-book: assigning programs to meanings
Verification of a simple pipelined machine model
Computer-Aided reasoning
Java Virtual Machine Specification
Java Virtual Machine Specification
A Simple Characterization of Stuttering Bisimulation
Proceedings of the 17th Conference on Foundations of Software Technology and Theoretical Computer Science
Synchronized Parallel Composition of Event Systems in B
ZB '02 Proceedings of the 2nd International Conference of B and Z Users on Formal Specification and Development in Z and B
Action Systems in Pipelined Processor Design
ASYNC '97 Proceedings of the 3rd International Symposium on Advanced Research in Asynchronous Circuits and Systems
Refinement and theorem proving
SFM'06 Proceedings of the 6th international conference on Formal Methods for the Design of Computer, Communication, and Software Systems
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The refinement of an implementation-independent specification of an instruction set to a simple pipelined architecture is presented to illustrate subtleties in the formal development and analysis of pipelined hardware from such specifications. The Event-B language and its tool support (the Eclipse-based Rodin platform) is used for this purpose. The example demonstrates that naive use of Event-B's superposition refinement fails to expose all of the potential hazards in pipelining. This paper introduces a form of 'event merging' to complete the analysis.