一、前言在我们伟大领袖和导师“中国人民有志气,有能力一定要在不远的将来赶上和超过世界先进水平”的教导指引下,我们自己构思、自己研制成功了三层结构逻辑电路(简称3JL 电路),并且相继研制成功了五级环振、半加器、四位加法器和D 触发器等逻辑电路。从理论到实践上都证明了3JL 电路是一种高速低功耗高集成度电路,是一种有前途的大规模集成电路。为适应大规模集成电路发展的需要,出现了由微处理机组成的微计算机,它有积木化、通用、系列化等有利于大规模集成电路发展的优点。作为要在大规模集成电路领域中有生命力的逻辑电路,必须适应这种形势,微计算机硬件与以往通常用的计算机一个较大差别是在微计算机中,要用到大量的固定存贮器(ROM)和可变程序阵列(PLA)。对 I. Preface Under the guidance and guidance of our great leaders and mentors, “Chinese people have ambition and ability to catch up with and surpass the advanced world level in the near future”, we have conceived ourselves and successfully developed a three-layer structure logic circuit (Referred to as 3JL circuit), and successively developed a series of five ring oscillator, half adder, four adders and D flip-flop logic. From theory to practice have proved that 3JL circuit is a high-speed low-power integrated circuit, is a promising large-scale integrated circuits. In order to meet the needs of the development of large-scale integrated circuits, the emergence of micro-computer microprocessor, which has the building blocks, general, serialization and other advantages conducive to the development of large-scale integrated circuits. As a logic circuit to be vitally involved in the field of large-scale integrated circuits, this situation must be accommodated. A big difference between microcomputer hardware and conventional computers is the use of a large amount of fixed memory in microcomputers ROM) and variable program array (PLA). Correct