cortex-a8

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Why ARM NEON not faster than plain C++?

Here is a C++ code: #define ARR_SIZE_TEST ( 8 * 1024 * 1024 ) void cpp_tst_add( unsigned* x, unsigned* y )[详细]

2023-02-27 01:55 分类：问答
Neon Optimization using intrinsics

Learning about ARM NEON in开发者_运维知识库trinsics, I was timing a function that I wrote to double the elements in an array.The version that used the intrinsics takes more time than a plain C version[详细]

2023-02-26 17:15 分类：问答
ARM Cortex-A8: How to make use of both NEON and vfpv3

I\'m using Cortex-A8 processor and I\'m not understanding how to use the -mfpu flag. On the Cortex-A8 there are both vfpv3 and neon co-processors. Previously I was not knowing how to use neon so I wa[详细]

2023-01-25 12:29 分类：问答
How to use NEON comparison (greater than or equal to) instruction?

How to use the NEON comparison instructions in general? Here is a case, I want to use, Greater-than-or-equal-to instruction?[详细]

2023-01-17 06:07 分类：问答
How to measure power consumed by my algorithm?

I have an image processing algorithm running on an ARM-Cortex-A8/Ubuntu 9.01 platform and I have to measure the power consumed by my algorithm, do开发者_JAVA百科es anyone know how to do this? Any tool[详细]

2023-01-14 21:32 分类：问答
How to measure program execution time in ARM Cortex-A8 processor?

I\'m using an ARM Cortex-A8 based processor called as i.MX515. There is linux Ubuntu 9.10 distribution. I\'m running a very big application written in C and I\'m making use of gettimeofday(); function[详细]

2023-01-07 20:07 分类：问答
What is the difference between Int32 and UInt32?

What is the difference between Int32 and UInt32? If they are the same with c开发者_开发问答apacity range capabilities, the question is for what reason UInt32 was created? When should I use UInt32 ins[详细]

2022-12-20 16:53 分类：问答