NEON指令:http://blog.csdn.net/fengbingchun/article/details/38085781
SSE2指令:http://blog.csdn.net/fengbingchun/article/details/18460199
NEON指令:http://blog.csdn.net/fengbingchun/article/details/38085781
SSE2指令:http://blog.csdn.net/fengbingchun/article/details/18460199