Re: [hatari-devel] Microwire register value on Falcon

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

On 03/02/2012 23:52, Eero Tamminen wrote:

> Btw. I was thinking that the "pFunction" member in INTERRUPTHANDLER
> is superfluous and and that compiler might be able to optimized checking
> all members of a bool array better than checking struct array bool
> members.  With such changes, there are much less data holes for CPU
> cache.  If that indeed is faster, maybe something like attached patch
> could be considered for the Hatari v1.7? :-)

I see what you mean with your patch, but I'm not sure splitting the 
struct array with 2 members in 2 arrays. This would need to be measured 
of course to be sure, but I would not expect the gain to be noticeable 
(at the asm level the cpu can use the equivalent of xx(a0) to access the 
bool or the cycles, without any real penalty on modern cpu ; and I don't 
expect any recent cpu to not be able to have the whole interrupt array 
in its cache).

Nicolas