Their inability to handle asynchronous feedback.Ģ. Two limitations of compiled code simulators are:ġ. Compiled code simulator evaluates every circuit element for every new input pattern. In a compiled code simulator a combinational circuit is topologically ordered and equation is generated for each gate output in terms of its inputs using boolean operators AND, OR and NOT. Earliest logic simulators were compiled code simulators. There are mainly three classes of logic simulators:Ĭompiled code logic simulation algorithm evaluates every logic element in the design at each time step. Logic simulation and verification are used to verify the functionality described by a design description against output values expected at the output ports of a digital integrated circuit. Logic simulation is an essential part of digital circuit design.
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