Re: NTSC VIC-II timing

From: groepaz_at_gmx.net
Date: Wed, 21 Jun 2017 21:45:21 +0200
Message-ID: <10136997.JbSjBbhGAx@rakete>
On Wednesday 21 June 2017, 14:41:26 Segher Boessenkool 
<segher@kernel.crashing.org> wrote:
> On Wed, Jun 21, 2017 at 09:15:56PM +0200, groepaz@gmx.net wrote:
> > > IIRC the LP stuff can be triggered only once per frame, this makes it
> > > a bit inconvenient to use for non-lightpen uses like we are discussing
> > > here.  It would be nice if we could just read out the current X coor
> > > directly, but nope.
> > 
> > wasnt that also different between VIC revisions.... older one will trigger
> > only once per frame, newer can do it any time again? like with sprite
> > collision?
> 
> I think the only difference is the old revisions trigger one cycle
> earlier?

not sure :)

-- 

http://www.hitmen-console.org    http://magicdisk.untergrund.net
http://www.pokefinder.org        http://ar.pokefinder.org

Easy to learn = hard to use, Easy to use = hard to learn, Easy to learn and 
use = won't do what you want it to, Powerful = hard to learn and use, Menu-
driven = easy to learn. 
<Stephen Manes>



       Message was sent through the cbm-hackers mailing list
Received on 2017-06-21 20:02:55

Archive generated by hypermail 2.2.0.