说明：  TI的C6000的DSP的C编程优化培训的课本，我参加了培训偷偷拷出来的，我用课本中的技巧优化我的程序后，速度提高了47倍
(TI C6000 DSP-C Programming Optimize training textbooks, and I participated in the training secretly copy out, I will use the textbooks of my skills to optimize procedures, improve the speed by 47 times)