Architectures and Processors blog

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.

Armv8 deprecates the use of the it instruction to make anything other than a single 16-bit instruction conditional. This affects many of the examples in this post.

It was always about the code (and where it would be used!) When I was a software developer I would often find that the project team I was in would try to guess how many devices the code would eventually…

This blog is a tutorial on detecting overflow from MUL.

In this post, we will look at how to efficiently multiply four-by-four matrices together, an operation frequently used in the world of 3D graphics.

This post will show you how we can deal with these limitations and how the latest revision of the Arm architecture (Armv7) provides a simple and efficient solution.

Arm implements conditional execution using a set of flags which store state information about a previous operation. in this post I shed some light on the operation of these flags.

In this post, we deal with an often encountered problem: input data that is not a multiple of the length of the vectors you want to process.

Sitting in the airport at the end of a week's business trip to the US, I reflected back on the week.  It turned out that my colleague on this trip has an even worse sense of direction than myself.…

This is the first part of a series on how to write SIMD code for Neon using assembly language. It covers getting started with Neon, using it efficiently, and more.

Ideally caches act as magic make-it-go-faster logic sitting between processor cores and memory banks. But there are cases where cache behaviour must be considered to get the desired result.

This post aims to provide a simple introduction to Arm assembly language.

Once you move beyond short sequences of optimised Arm assembler, the next likely step will be to managing more complex, optimised routines using macros and functions.

One of the key challenges faced by the semiconductor industry today is balancing the growing, yet conflicting demand for mobile devices featuring both high performance and long battery life. Last week…

You don't need a graphic like this one to know that multi-core SoC designs are here to stay.  This one happens to be based on ARM's AMBA® 4 ACE architecture, which is particularly effective…

An SMM is a Soft Macrocell Model which is an FPGA implementation of an ARM processor, built with ARM development boards. Life with an SMM, would be much easier, at least from an engineer's perspective…

Using power management features of complex SoCs (system on chip) can be difficult due to the complexity of the design and multiple power domains. In this blog I discuss the power management hardware features…

Smartphones are now one of the most important consumer electronics devices globally. Smartphone volume shipments are growing at a very healthy rate and are expected to exceed a billion units per annum…

Do you love your smartphone? Is your tablet the best computer you've ever owned? If you're like me, and nearly a billion other folks on the plant, the answer is a passionate YES! The evidence is everywhere…

More than 3400 product announcements. 700 applications. Less than 20 winners selected for 2012.It was a great honor for the ARM® Cortex™-A57 and A53 processors based on the ARMv8 architecture to receive…

It’s been a year since ARM announced the first details of the new ARMv8 architecture with its support for 64-bit virtual addressing. This comparatively early announcement allowed the architecture…