| 嵌入式系统中48位高精度浮点类型的设计与实现 |
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| 引用本文： | 邓彬伟.嵌入式系统中48位高精度浮点类型的设计与实现[J].微计算机信息,2007,23(23):24-25. |
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| 作者姓名： | 邓彬伟 |
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| 作者单位： | 黄石理工学院,电气与电子信息工程学院,湖北黄石,435003 |
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| 摘 要： | 本文参考IEEE754标准,用无符号整型定义48位高精度浮点类型,详细给出了48位浮点类型与无符号32位整型相互转化及加减乘除的实现方法和流程图。算法已在ATMEL 89C55和PIC16F877中通过测试,并在基于SST9—三轴加速度传感器的控制处理中得到应用。
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| 关 键 词： | 嵌入式系统 48位高精度浮点类型 IEEE754 |
| 文章编号： | 1008-0570(2007)08-2-0024-02 |
| 修稿时间： | 2007年7月23日 |
The Design and Implementation of 48 bit high precise floating data type based on embedded system |
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| DENG BINWEI.The Design and Implementation of 48 bit high precise floating data type based on embedded system[J].Control & Automation,2007,23(23):24-25. |
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| Authors: | DENG BINWEI |
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| Abstract: | The 48 bit high precise floating data type is defined by unsigned integer type, which refers to IEEE standard 754. The method and flow chart of commutative conversion between unsigned 32 bit integer and 48 bit float and addition, subtraction, multipli- cation and division based on the 48 bit float are described detail. Test pass on the ATMEL 89C55 and the PIC16F877 and the code apply to the control of three axes acceleration sensor. |
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| Keywords: | embedded system 48 bit high precise floating data type IEEE754 |
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