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| The Unified Fast Implementation of Elementary Functions in the Embeded Coprocessor |
| Zhu Zhang-ming①; Zhou Duan②; Yang Yin-tang①; Xu Yang-yang② |
| ①Institute of Microelectronics Xidian University Xi’an 710071 China;②School of Computer, Xidian University, Xi’an 710071 China |
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Abstract In this paper, the unified CORDIC algorithm is put forward by the improvement of iterative sequence and the presence of rational approximation. The unified algorithm of elementary functions is implemented with high speed. A coprocessor core using the improved algorithm is built by Verilog HDL. The core is very suitable for embedded application due to its small scale, high speed and simple control.
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Received: 07 October 2002
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2004, Vol. 26 
