Abstract
This paper critiques and extends Lamport’s taxonomy of asynchronous registers, [8], [9]. This extended taxonomy is used to characterise Simpson’s 4-slot asynchronous communication mechanism (ACM), [15], [16], [17], [18], [19]. A formalisation of the Lamport atomic property and Simpson’s original 4-slot implementation is given in the PVS logic [12]. We prove that the 4-slot is atomic using Nipkow’s retrieve relation proof rules, [10], [11], [7]. A description is given of the formal proofs, which have been discharged in the PVS theorem prover [13].
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Henderson, N., Paynter, S.E. (2002). The Formal Classification and Verification of Simpson’s 4-Slot Asynchronous Communication Mechanism. In: Eriksson, LH., Lindsay, P.A. (eds) FME 2002:Formal Methods—Getting IT Right. FME 2002. Lecture Notes in Computer Science, vol 2391. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45614-7_20
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DOI: https://doi.org/10.1007/3-540-45614-7_20
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