Learn more about Arm Neon technology with our series of guides. From the fundamentals to more advanced concepts, these guides provide an introduction to the advanced Single Instruction Multiple Data (SIMD) architecture extension, for the Arm Cortex-A and Cortex-R series processors. Check back regularly for new guides and resources.

Introducing Neon for Armv8-A

This guide introduces Arm Neon technology, the Advanced SIMD (Single Instruction Multiple Data) architecture extension for processors that implement the Armv8–A or Armv8–R architecture profiles.

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Compiling for Neon with auto-vectorization

This guide shows how to use auto-vectorization features in your compiler to automatically generate code containing  Advanced SIMD instructions.

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Optimizing C code with Neon intrinsics

This guide shows how to use Neon intrinsics in your C code to take advantage of the Advanced SIMD technology in the Armv8 architecture. 

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Neon intrinsics Chromium case study

This guide shows how Neon technology has been used to improve performance in the real-world: specifically, in the open source Chromium project.

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Arm optimized routines

This GutHub repository contains implementations of library functions optimized using Neon intrinsics. Studying these implementations is a useful learning tool for programmers wanting to use Neon intrinsics in their own code.

GitHub

Coding for Neon

This guide provides information about how to write SIMD code for Neon using assembly language. This guide will grow and evolve over time. 

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