Have you ever looked at Cortex M4 instruction set ? There is a particular one that does not seem like much but can do some magic !
I’m talking about SEL intrinsic and this article will show one of its possible usage in a Min/Max detection algorithm.
Lire la suite « Parallel comparison – Min/Max detection »For this first post, we shall start simple and easy.
We will look into what I think is the simplest algorithm ever : averaging. You will see how much you can gain by looking hard at what your compiler does and what you could do to speed things up.
Lire la suite « Simplest algorithm ever »Today is a great day for me and hopefully for all Cortex M4 (or M7) enthusiasts and users.
I wrote a page to explain why I created this blog and another one to introduce what can be unleashed on the ARMv7E-M instruction set.
My first « real » post will show (with a lot of details) how a very simple algorithm (averaging) can be time-consuming …
Edit: Here it is !
See you around!
Thibaut
ARM Cortex M4 & M7 Unleashed 