Architectures and Processors blog

ARM Big.LITTLE processing addresses one of today's most significant challenges: extending consumers' always on, always connected mobile experience with both improved performance AND longer battery life…

Following on from two earlier articles (Navigating the Cortex Maze and ARMv6-M vs ARMv7-M - Unpacking the Microcontrollers), you might be interested in a new piece on the ARMv7-A architecture and Cortex…

Fact: The ARM architecture is the most widely licensed 32-bit embedded instruction set architecture in the industry. That fact makes the ARM Instruction Set Architecture (ISA) incredibly important to…

I thought I'd post a short blog post about commonly asked questions on AMBA 4 ACE and system coherency.What does ACE mean?ACE is the "AXI Coherency Extensions" introduced with the AMBA 4 specification…

The Arm Cortex-M story has much depth and warrants some further explanation. You see, it doesn’t end with Armv7-M.

This blog was originally posted on 11 September 2013 on blogs.arm.comFollowing on from the UEFI 64-bit announcement, I like to announce the release of the ARM® Architecture Reference Manual (commonly known…

Introduction The ARM architecture is 28 years old this year. The ARM1 first ran code on 26th April 1985 at the office of Acorn Computers in Cambridge, UK. Since the formation of ARM (then called “Advanced…

I saw what looks like the start of a series of short videos on the ARMflix YouTube channel. Of course, it doesn't go into much details, but I thought it was a simple way to discover the series. As they…

The implementation of multi-threading in multi-core processor systems is being heralded as a potential solution to the challenge of achieving ever-higher performance targets with strict limits on power…

In this blogpost, Gabor Ballabas and I share why and how we’ve set up a public buildbot for the LLVM AArch64 backend. This buildbot is part of the LLVM community’s continuous integration infrastructure…

This blog was originally posted on 22 February 2011 on blogs.arm.comARM processors have been predominant in the smartphone market and are becoming increasingly mainstream in the overall embedded space…

This blog was originally posted on 7th March 2011 on blogs.arm.comPreviously I introduced UEFI and its history, now I will get into its benefits, especially for the usage on ARM-based systems. I will further…

Note: This was originally published on the 14th of February 2012 at blogs.arm.com.I have recently been using the ARM Streamline profiler to study the behaviour of Mozilla Mobile Firefox (code-named Fennec…

This post is part of a series:Condition Codes 1: Condition Flags and CodesCondition Codes 2: Conditional ExecutionCondition Codes 3: Conditional Execution in Thumb-2Condition Codes 4: Floating-Point Comparison…

In this blog we run through branch and call sequences to explain what they are and how to use them as well as interworking branches between Arm and Thumb Code.

ARM Cortex-M based microcontrollers are becoming the defacto standard for the next generation of low power control applications.This paper looks at the various criteria to be considered when selecting…

Blog orgininally posted on 11 July 2011 on blogs.arm.comHaving chosen the optimal implementation, as described in the previous blog (Elba - How do we know it works?) we now turned our attention to power…

This tutorial explains how to have a LAMP server running Drupal on a PandaBoard. These instructions will apply to any other Cortex-A platform with few or no changes.The growing variety of ARMv7-based inexpensive…

利用NEON技术编写代码ARM NEON™ technology is widely used for multimedia optimization. The SIMD architecture of NEON technology makes it very suitable for many compute intensive modules in multimedia codecs…

Continuing my "Spotlight on the Linux software Ecosystem", this time I am going to cover the openSUSE Project.openSUSE is not only one of the major Linux distributions, but is also one of the…

As many may know, the Linux operating system has many variations. These are more commonly referred to as Linux distributions or distros, and choosing a distribution to use can be a quagmire.  I won't be…