ANALYSIS OF EFFECTIVENESS OF TECHNOLOGY INDEPENDENT OPTIMIZATION OF CMOS CIRCUIT FUNCTIONAL DESCRIPTIONS

Abstract

The influence of procedures of technology independent optimization of functional descriptions on complexity and delay of circuits made of CMOS VLSI library elements is investigated. The effectiveness of the optimization methods implemented in the synthesizer LeonardoSpectrum, the methods of minimization of Boolean functions systems in DNF and algebraic decomposition was compared. Experimental analysis was shown that sequential fulfilment of procedures of minimization of Boolean functions systems and algebraic decomposition during the technology independent optimization stage results in the great reduction of the circuit complexity and delay.