BADGE-building block adviser and generator

The CAD tool BADGE, which supports the system designer dealing with CMOS cell libraries, is presented. It provides a library database of alternative schemes for building blocks like adders, multipliers, etc., which are characterized by architecture-describing parameters. BADGE guides the selection of the appropriate scheme and generates the netlist exploiting a given cell library. Although an expert system shell is used to implement the BADGE system, the performance on a μVAXII is sufficient to generate a building block in a reasonable time. It takes about 3 min to create the netlist of an 8-bit fast-carry chain adder and about 5 min for an 8-bit braun-array multiplier consisting of 250 and 870 gates, respectively