This guide introduces Arm Helium technology, which is the M-profile Vector Extension (MVE) for the Arm Cortex-M processor series. The Arm Cortex-M55 processor is the first Arm processor to support this technology.

Helium is an extension of the Armv8.1-M architecture and delivers a significant performance uplift for Machine Learning (ML) and Digital Signal Processing (DSP) applications for small, embedded devices.

Helium technology provides optimized performance by using Single Instruction Multiple Data (SIMD) to perform the same operation simultaneously on multiple data items. This can be particularly effective in DSP and ML.

At the end of this guide:

  • You will be familiar with Helium and the differences it has with Neon
  • Helium registers
  • Predication in Helium
Before you begin

You should have familiarity with the Arm architecture, see our Introducing the Arm architecture for more information.