Re: [hatari-devel] WinUAE and 030 cache hits/misses?

[Laurent Sallafranque <laurent.sallafranque@xxxxxxx>]

Hi,

The patch seems OK to me.

I've done a quick test with it for cache/non cache timings, but there 
are still things to fix before this.
It didn't change many things as I first expected.

Still some work to do ;)

Thanks Eero,

Best regards

Laurent


Le 24/01/2013 00:20, Eero Tamminen a écrit :
> Hi,
>
> On maanantai 21 tammikuu 2013, laurent.sallafranque@xxxxxxx wrote:
> > If you add it, I can quickly improve the cycles counting by taking into
> > account the hit/miss flag. I'm sure this would increase the quality of
> > the approximative cycles computing I'm curently doing (and maybe let
> > some timing critic programs run a bit better), especially the programs
> > that deals with the DSP for music.
> Attached is a preliminary patch for testing this, but I noticed some
> wierd things with it:
>
> * There can be 0-3 cache misses *per* instruction (prefetch), I'm assuming
>    this to mean that several instructions that were not in cache can get
>    fetched with the same prefetch.  Comments on that?
>
> * With WinUAE core, CPU instruction cycle counts are zero when debugger
>    is called.   With old UAE core they're fine.  Are debugger calls in
>    WinUAE in similar places as they are in old UAE CPU core?
>
>
> 	- Eero