AUTOMATIC SYNTHESIS OF INTEGRATED CIRCUITS EMPLOYING CONTROLLED INPUT DEPENDENCY DURING A DECOMPOSITION PROCESS

A method of automatic synthesis of a very large scale integrated circuit includes controlling the decomposition process in accordance with a reference order of inputs in a lexicographical expression of a Boolean function. The process improves the routability of the circuit by a reduction of complexity of wiring between cells of the circuit and external wiring to blocks connected to the synthesized circuit. The process also promotes an increase in speed and/or a decrease in area of the circuit, avoids ineffective decompostions which would be broken later during an optimization process and also helps to speed up the entire process of synthesis.