[libre-riscv-dev] Vector Operations Extension (cross, dot, length, lerp, slerp)

[lkcl]

On Tuesday, September 17, 2019 at 7:55:53 AM UTC+1, lkcl wrote:
 

> Found what I was looking for, knew I'd seen it somewhere:
>
> https://www.atlantis-press.com/proceedings/jcis2006/232
>
> This is a CORDIC algorithm that is power efficient and can do 3D rotations.
>
> I am sure I have seen somewhere else that SLERP can be done with a complex 
> number CORDIC.
>

https://en.wikipedia.org/wiki/CORDIC#Rotation_mode

ok the paper explains how to use boh vector mode and rotation mode.  the 
wikipedia page is, as usual, a lot easier to understand than the academic 
paper from which huge amounts of information are missing in order to keep 
it short and acceptable for publication in space-limited journals *sigh* :)

l.