METHOD AND DEVICE FOR SEPARATELY EVALUATING LOGIC CIRCUIT, METHOD AND DEVICE FOR PREPARING PRODUCT SPECIFICATION DATA BASE, METHOD AND DEVICE FOR ESTIMATING PRODUCT SPECIFICATION AND METHOD AND DEVICE FOR AUTOMATICALLY GENERATING LOGIC CIRCUIT HIERARCHY

摘要

PURPOSE: To provide the method for calculating a classified value showing the feature of wiring relation from the geometrical relation of logic circuits. ;CONSTITUTION: In a step 10, logic elements provided for the logic circuits and the wiring relation are inputted to an electronic computer. In a step 20, a first-order adjacent logic element number N1 is calculated from the inputted logic elements and wiring relation as the total number of first-order adjacent logic elements directly connected with all the respective logic elements provided for the logic circuits. In a step 30, an in-second-order adjacent logic element number N2 is calculated from the inputted logic elements and wiring relation as the total number of the total number of first-order adjacent logic elements and the total number of second-order adjacent logic elements directly connected with the respective first-order adjacent logic elements. In a step 50, difference between the logarithmical value of the first-order adjacent logic element number N1 and the logarithmical value of the in-second-order adjacent logic element number N2 is extracted as a classified value λ for the features of logic circuits.;COPYRIGHT: (C)1994,JPO&Japio