1.引言随着VLSI技术的迅速发展,使微型机、小型机与大型计算机在体系结构方面的差别日趋缩小,最近一些高档32位微处理器芯片的出现,基本上消除了体系结构方面的差别。在这些32位处理器芯片上不仅实现了大型计算机的主要功能,并增加了一些额外的特性和功能,Z-80000就是这些微处理器中的一种。Z-80000是Zilog公司的最新产品,它与Z-8000向上兼容,具有把更多的计算机部件集 1. Introduction With the rapid development of VLSI technology, the differences in architecture of minicomputers, minicomputers and mainframe computers have been shrinking. Recently, the emergence of some upscale 32-bit microprocessor chips has basically eliminated the architectural differences . The Z-80000 is one of these microprocessors that not only implements the main functions of a mainframe on these 32-bit processor chips, but adds some additional features and functionality. Z-80000 is Zilog’s latest product, which is upward compatible with the Z-8000, with more components of the computer