Re: [hatari-devel] Videl / VBL interrupt issue in Hatari?

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 20/01/2014 13:11, Mariusz Buras a écrit :
> Well, for instance, if your VBL routine would take almost entire frame
> to execute on real falcon, on Hatari it could be more then one frame to
> do the same task, so they would overlap.

AFAIK, BM doesn't run in 1 VBL on falcon anyway, more like 2 or 3 VBL 
per frame.

So this problem should already be taken into account, else it would not 
work as soon as the 1st seconds of game.
Usually, when program doesn't run in 1 VBL, you will use a short VBL 
code that mostly only set a VBL counter + a few others things that 
really need to be real time (sound, music, ...), and then the main 
program (outside of the VBL) waits for the counter to change before 
working on the next frame.

Nicolas