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

Eero Tamminen oak at helsinkinet.fi
Thu Jan 27 00:05:07 CET 2011


Hi,

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,

Any idea whether it uses the blitter HOG mode and does that work the same
way also on Falcon?  At least earlier that wasn't emulated properly in
Hatari.

(I guess somebody needs to set some tracing breakpoints and see what it
actually does.)

> so
> maybe this 16/32 Mhz problem involves blitter too, not just cpu, in
> which case debugging can be a little trickier than just looking at the
> cpu side (even if no dsp is involved). Still, it's interesting.

Hm.  The issue showing only on rectangular screen area updates could
indeed indicate that it's due to blitter...


	- Eero



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