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Minimization of circuit registers: retiming revisited

Bruno Gaujal 1 Jean Mairesse 2
1 MESCAL - Middleware efficiently scalable
Inria Grenoble - Rhône-Alpes, LIG - Laboratoire d'Informatique de Grenoble [2007-2015]
Abstract : In this paper, we address the following problem: given a synchronous digital circuit, is it possible to construct a new circuit computing the same function as the original one but using a minimal number of registers? The construction of such a circuit can be done in polynomial time and is based on a result of Orlin for one periodic bi-infinite graphs showing that the cardinality maximum flow is equal to the size of a minimum cut. The idea is to view such a graph as the unfolding of the dependences in a digital circuit.
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https://hal.inria.fr/inria-00072480
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Submitted on : Tuesday, July 24, 2007 - 6:40:48 PM
Last modification on : Thursday, July 9, 2020 - 9:44:35 AM
Document(s) archivé(s) le : Tuesday, September 21, 2010 - 1:41:29 PM

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Bruno Gaujal, Jean Mairesse. Minimization of circuit registers: retiming revisited. Discrete Applied Mathematics, Elsevier, 2007. ⟨inria-00072480v2⟩

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