This blog is a tutorial on detecting overflow from MUL.
Cortex-A15 to A5: Software compatibility from Superphone to Feature phone
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…
Condition Codes 3: Conditional Execution in Thumb-2
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.
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.
Valgrind 3.6.0 for ARM-Linux
Version 3.6.0 of Valgrind was released a couple of weeks ago. The largest change this release is the addition of support for Linux running on ARM. Learn more about the release in this blog.
Memory access ordering - an introduction
In this post, I will be introducing a few concepts and explain the reasons behind them. In future posts, I will follow up with practical examples.
Memory access ordering part 2: Barriers and the Linux kernel
My previous post provided an introduction to memory access ordering. It did not however, provide any solution to the problem. This post covers barrier use within the Linux kernel.
Happy Fifth Birthday iPhone! Innovator and Troublemaker
On June 29, 2007 -- the original iPhone went on sale and unleashed an unrivaled period of creative innovation and destruction in the mobile phone business. In case you have forgotten, the original iPhone…
CubeStormer II - The Power of Two
I have a confession to make... I started writing this post in November 2011, but in the excitement of the events at the time, I left it unfinished... until today. This morning I stopped at a local supermarket…