该文档主要讲述dsp芯片中进行定点运算所设计的基本问题，分别介绍了定标、从浮点到定点的运算，定点的快速运算及其实现。文档中举出大量的例子说明，相信下载阅读后肯定会很有收获。-the document focuses on the dsp chip sentinel operation designed the basic problem introduced calibration, from floating-point to fixed-point arithmetic, fixed-poi