[hatari-devel] Cebit93 demo seems to run well too (no more screen update problems)

Eero Tamminen oak at helsinkinet.fi
Sun Jan 30 17:23:32 CET 2011


Hi,

On torstai 27 tammikuu 2011, Eero Tamminen wrote:
> On torstai 27 tammikuu 2011, Nicolas Pomarède wrote:
> > Le 26/01/2011 23:08, Eero Tamminen a écrit :
> > >> This demo doesn't involve the DSP at all.
> > >> 
> > >> So, the 16/32 Mhz problem seem to be only related to the 68x000 part
> > >> of the computer.
> > > 
> > > Right.  It's an interesting case for the Falcon timings as they're so
> > > clearly visible, but only in what's shown on screen.
> > 
> > According to the readme with that demo, it also uses blitter a lot,

Enabling the Blitter control register tracing (--trace blitter) didn't show
any blitter operations during the part that looks bad:
	1. some realtime rotated, bended and zoomed letters. 
	2. truecolor starfield with 32 greyscales 
	3. text zooming stuff


The blitter usage mentioned in the readme:
	5. Blitter-processed textscrolling

Comes later in the demo and looks OK.


So, the issue isn't blitter either.   I guess that indeed leaves Videl. :-)


	- Eero



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