[stella] Earliest safe write to PF1 for asymmetrical playfield?

[seagtgruff at aol.com]

Is that because of the "glitch" when using the "score" mode, I wonder? The "cycle 48" requirement with regard to the right copy of PF2 on a reflected playfield is well known, so I'm not sure why a sliver of a pixel would be visible there, except that I've seen references to something like that happening when using the "score" mode (i.e., the left half of the playfield drawn with player0's?color, and the right half drawn with player1's color). Do you have any information about when this occurs-- which console types, and which playfield modes? :ponder:

Michael


-----Original Message-----
From: Glenn Saunders <mos6507 at yahoo.com>
To: Atari 2600 programming list <stella at atari2600.org>
Sent: Sat, 5 Jul 2008 6:30 pm
Subject: Re: [stella] Earliest safe write to PF1 for asymmetrical playfield?



--- On Sat, 7/5/08, seagtgruff at aol.com <seagtgruff at aol.com> wrote:
> What I found is that the
> playfield pixels will *not* change partway through the
> display-- i.e., you will get either the old value or the

That isn't the case in the midpoint of the screen at least.  That's where I've 
been able to see a "sliver" of extra pixel.




      

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