IEEE 754-1985 二进制浮点运算

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                   【英文标准名称】:     Binary floating-point arithmetic            【原文标准名称】:     二进制浮点运算            【标准号】:     IEEE 754-1985            【标准状态】:     作废            【国别】:     美国            【发布日期】:     1985    【实施或试行日期】: 【发布单位】: 美国电气电子工程师学会(US-IEEE)【起草单位】: IEEE【标准类型】: ()【标准水平】: ()【中文主题词】: 浮点运算;算术;计算机软件;数据处理;信息处理;计算机硬件【英文主题词】: Arithmetic;Computer hardware;Computer software;Data processing;Floating-point arithmetic;Information processing【摘要】: specifies four formats for representing floating-point values: single-precision (32-bit), double-precision (64-bit), single-extended precision (≥ 43-bit, not commonly used) and double-extended precision (≥ 79-bit, usually implemented with 80 bits). Only 32-bit values are required by the standard; the others are optional. Many languages specify that IEEE formats and arithmetic be implemented, although sometimes it is optional. For example, the C programming language, which pre-dated IEEE 754, now allows but does not require IEEE arithmetic (the C float typically is used for IEEE single-precision and double uses IEEE double-precision).【中国标准分类号】: L61【国际标准分类号】: 07_020;35_020【页数】: 18P;A4【正文语种】: 英语