
2.----ARM
ccwwff
这个作者很懒,什么都没留下…
展开
-
ARM指令优化-Coding for NEON - Part 2: Dealing With Leftovers
In the first post on NEON about loads and stores we looked at transferring data between the NEON processing unit and memory. In this post, we deal with an often encountered problem: input data that转载 2012-08-23 15:38:36 · 1386 阅读 · 0 评论 -
ARM指令优化-Coding for NEON - Part 3: Matrix Multiplication
We have seen how to load and store data with NEON, and how to handle the leftovers resulting from vector processing. Let us move on to doing some useful data processing – multiplying matrices.转载 2012-08-23 15:40:20 · 4539 阅读 · 0 评论 -
ARM指令优化-Coding for NEON - Part 1: Load and Stores
ARM's NEON technology is a 64/128-bit hybrid SIMD architecture designed to accelerate the performance of multimedia and signal processing applications, including video encoding and decoding, audio e转载 2012-08-23 15:24:57 · 2634 阅读 · 0 评论 -
ARM指令优化Coding for NEON - Part 2: Dealing With Leftovers
In the first post on NEON about loads and stores we looked at transferring data between the NEON processing unit and memory. In this post, we deal with an often encountered problem: input data that转载 2012-08-23 15:32:46 · 1404 阅读 · 0 评论 -
ARM指令优化-Coding for NEON - Part 4: Shifting Left and Right
This article introduces the shifting operations provided by NEON, and shows how they can be used to convert image data between commonly used color depths. Previous articles in this series: Part 1: L转载 2012-08-23 15:42:36 · 1505 阅读 · 0 评论 -
ARM指令优化-Coding for NEON - Part 5: Rearranging Vectors
IntroductionWhen writing code for NEON, you may find that sometimes, the data in your registers are not quite in the correct format for your algorithm. You may need to rearrange the elements in yo转载 2012-08-23 15:46:09 · 3591 阅读 · 0 评论 -
Install qemu-arm for Ubuntu
1. 安装:$ sudo apt-get install gcc-arm-linux-gnueabi$ sudo apt-get install qemu-user qemu-system qemu-util 2. C代码(hello.c)#include int main(int argc, char* argv[]){ printf("hello\n");原创 2017-04-05 16:58:25 · 1336 阅读 · 0 评论