Architecture and software support in IBM S/390 Parallel Enterprise Servers for IEEE Floating-Point arithmetic
نویسندگان
چکیده
IEEE Binary Floating-Point is an industrystandard architecture. The IBM System/360 hexadecimal floating-point architecture predates the IEEE standard and has been carried forward through the System/370 to current System/390 processors. The growing importance of industry standards and floatingpoint combined to produce a need for IEEE Floating-Point on System/390. At the same time, customer investment in IBM floatingpoint had to be preserved. This paper describes the architecture, hardware, and software efforts that combined to produce a conforming implementation of IEEE FloatingPoint on System/390 while retaining compatibility with the original IBM architecture.
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ورودعنوان ژورنال:
- IBM Journal of Research and Development
دوره 43 شماره
صفحات -
تاریخ انتشار 1999