Re: Re: [stella] Question about How To Draw A Playfield

Subject: Re: Re: [stella] Question about How To Draw A Playfield
From: Dennis Debro <ddebro@xxxxxxxxxxxxx>
Date: Mon, 10 Jun 2002 17:01:49 -0400
Thanks Paul. I didn't think it was necessary to have them there.

Funny thing though, most everyone that used this as a skeleton (including myself) ended up wasting 6 bytes :)

> 
> From: Paul Slocum <paul-stella@xxxxxxxxxxxxxx>
> Date: 2002/06/10 Mon AM 11:20:16 EDT
> To: stella@xxxxxxxxxxx
> Subject: Re: [stella] Question about How To Draw A Playfield
> 
> 
> >In Nick's program he does 2 scanlines before VSYNC, then the 3 VSYNC 
> >lines. Why did he do the 2 scanlines before VSYNC? Are they neccessary? 
> >When I comment them out my display shows the same.
> 
> Don't know.  They're not necessary.  I have the PF demo that displays 
> "HELLO" and it's actually drawing 264 scanlines which is two too 
> many.  Comment out the WSYNCs and I get 262.  If you use the Z26 emulator 
> and press ALT-9 it will show you the number of scanlines being drawn.
> 
> -Paul
> 
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