[fpc-devel] Patch to speed up Uppercase/Lowercase functions

[Marco van de Voort]

> On 13 jun 2005, at 08:46, Marco van de Voort wrote:
> 
> > There also is jecx, (jeecx ? :-),
> 
> jecxz
> 
> > but I don't know if it is faster than
> > writing it out.
> 
> Pretty much all of those old complex instructions (enter, loop,  
> jecxz, xlatb, ...) are slower than the alternatives.

I was thinking about this before I relpied, and knew this was the case for
P5-P6 core. However is this verified/documented for generation 7 CPU's ?
(Athlon/Netburst ?)