一、引言 1993年3月22日,Intel公司发布了它的第五代微处理器——Pentium(中文名称为奔腾),简称P5。 作为一种崭新的微处理器,它必须同时兼顾继承和创新两个方面。一方面,Intel必须延续已有十五年历史的80×86体系结构,因为数以千万计的计算机和软件建立在这个体系之上。那些已经投入 I. Introduction March 22, 1993, Intel Corporation released its fifth generation of microprocessors - Pentium (Chinese name for Pentium), referred to as P5. As a brand new microprocessor, it must take both inheritance and innovation into consideration. On the one hand, Intel must continue the 80 × 86 architecture that has existed for 15 years because tens of millions of computers and software are built on top of this system. Those are already put in