| 基于TMS320C64xDSP的汇编优化方法 |
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| 引用本文： | 郑回青,林嘉宇,张镔. 基于TMS320C64xDSP的汇编优化方法[J]. 微处理机, 2010, 31(1): 105-108,111. DOI: 10.3969/j.issn.1002-2279.2010.01.031 |
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| 作者姓名： | 郑回青 林嘉宇 张镔 |
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| 作者单位： | 国防科技大学,长沙,410073 |
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| 摘 要： | 由于DSP器件的特殊结构，使得该平台上C编译器的效率较低，编译生成的汇编代码含有大量冗余，无法充分发挥DSP强大的运算能力，且不能满足实际的需求，因而对C语言程序进行汇编优化就成为DSP软件开发和移植中常用的方法。DM642是TI公司推出的新一代并行处理器中性能较优的定点DSP芯片，笔者结合在该芯片上优化实现G．726语音编码压缩算法的经验，详细探讨了TMS320C64xDSP汇编优化过程中使用的优化策略并给出相应的实例。
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| 关 键 词： | TMS320C64x G．726 汇编 优化 |
The Optimizing Method of Assemble Code Based on TMS320C64x DSP |
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| ZHENG Hui-qing,LIN Jia-yu,ZHANG Bin. The Optimizing Method of Assemble Code Based on TMS320C64x DSP[J]. Microprocessors, 2010, 31(1): 105-108,111. DOI: 10.3969/j.issn.1002-2279.2010.01.031 |
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| Authors: | ZHENG Hui-qing LIN Jia-yu ZHANG Bin |
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| Affiliation: | ZHENG Hui-qing,LIN Jia-yu,ZHANG Bin(National University of Defence Technology,Changsha 410073,China) |
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| Abstract: | For the special architecture of DSP,the C compiler for DSP platform is inefficient.The assemble code compiled with C code is redundant and can't satisfy the demand practically,so it is necessary to optimize by hand.With the experience of optimizing and realizing G.726 source code on DM642,a fixed-point DSP chip performing well in the parallel processor,this paper describe how to optimize assemble code on TMS320C64xDSP and give the corresponding examples. |
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| Keywords: | TMS320C64x G.726 |
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