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## Modelling and Simulation of Combinational Digital Circuits Using Petri Nets.

Chowdhury, Dipanwita Roy;
Gupta, Indranil Sen
In:
*Int. J. Syst. Sci., Vol. 21, No. 8*, pages 1503-1513.
August 1990.

Abstract:
The P-model approach of modelling a combinational digital network using
Petri nets is introduced. A logic 1 value in any line of the circuit
corresponds to the presence of a token, and a logic 0 corresponds to the
absence of tokens. The operation of the circuit is reflected on the
execution of the P-model resulting from the firing of transitions. Several
minimizing transformations in the P-model domain are discussed, which
reduces the number of places and transitions by an order of magnitude.
Based on the P-model representation of a logic circuit, a logic simulation
algorithm is outlined. The method is faster and also simpler to implement
than conventional simulation techniques.

Keywords:
combinational digital circuits modelling (by nets); minimizing
transformations (in) net models; logic simulation algorithm.

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