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浮点数的表示和存储直接影响计算机的结构和性能,IEEE754是浮点运算部件事实上的工业标准,是计算机上使用最为广泛的浮点标准。文章在阐述了浮点数的基本概念和IEEE754浮点数的表示形式及其格式的基础上,比较深入的比较、分析和研究了Intelx86和SPARC结构计算机上使用的三种IEEE浮点数的存储格式。
The representation and storage of floating-point numbers have a direct impact on the structure and performance of computers. IEEE754 is the de facto industry standard for floating-point arithmetic units and the most widely used floating-point standard on computers. Based on the introduction of the basic concepts of floating-point numbers and the representation of IEEE754 floating-point numbers and their formats, the article compares and analyzes the storage formats of three IEEE floating-point numbers used on Intel x86 and SPARC computers.