符合本标准的浮点系统的实现可以完全在软件、硬件或软件与硬件的任何组合中实现。系统的程序员或用户看到的环境符合或不符合本标准。需要软件支持才能符合要求的硬件组件，除该软件外，不得称为符合要求。

It is intended that an implementation of a floating-point system conforming to this standard can be realized entirely in software, entirely in hardware, or in any combination of software and hardware. It is the environment the programmer or user of the system sees that conforms or fails to conform to this standard. Hardware components that require software support to conform shall not be said to conform apart from such software.