On Mon, 16 Dec 2013 12:48:42 +0000 Alain Williams addw@phcomp.co.uk wrote:

I just came across this that might be of interest:

http://www.davespace.co.uk/arm/efficient-c-for-arm/

"Floating Point is usually emulated on ARM systems.

Slow. 50-300× slower than equivalent integer ops. Depending on library, environment."

"Unaligned values have to be pulled from memory a byte at a time and reformed."

Seriously? Was this guide really written in 2012? Looks like the guys are at least 4-5 years behind and have not seen any of the modern (ARMv6 and newer) processors :)