42 Design services relating to integrated circuits, microprocessors, microprocessor cores, ip cores, macro cells, microcontrollers and printed circuit boards, and computer software for design, development, modeling, simulation, compiling, de-bugging, verification, construction and interfacing of integrated circuits, microprocessors, microprocessor cores, ip cores, macro cells, microcontrollers and printed circuit boards; research, development, design, and technical consultation in the fields of integrated circuits, microprocessors, microprocessor cores, ip cores, macro cells, microcontrollers and printed circuit boards, and computer software for design, development, modeling, simulation, compiling, de-bugging, verification, construction and interfacing of integrated circuits, microprocessors, microprocessor cores, ip cores, macro cells, microcontrollers and printed circuit boards; maintenance services relating to computer software, software for the design, development, modeling, simulation, compiling, de-bugging, verification, construction and interfacing of integrated circuits, microprocessors, microprocessor cores, ip cores, macro cells, microcontrollers and printed circuit boards