数字逻辑的微程序设计方法是英国剑桥大学威尔克斯(M.V.WILKES)早在1950年提出的。其目的是为计算机控制器的设计提供一种系统方法,使设计过程规律化,便于修改、扩充、维护和生产。但由于当时还没有一种性能、价格、体积兼优的只读存贮器(ROM)来充当微程序存贮器,所以限制了它的推广和应用。近年来,《由于大规模集成技术的发展,容量大、性能好的只读存贮器的制造工艺日臻完 The micro-logic design method of digital logic was proposed by M.V. WILKES back in 1950. Its purpose is to provide a systematic approach to the design of computer controllers that regulates the design process and facilitates modification, expansion, maintenance and production. However, since at that time there was not yet a kind of read-only memory (ROM) of performance, price and volume to serve as a micro-program memory, thus limiting its promotion and application. In recent years, "due to the development of large-scale integration technology, large-capacity, high-performance read-only memory manufacturing technology has been completed