It looks fixed on my TV. Good job.
On Tue, 25 Mar 2003 henitrope@xxxxxxxx wrote:
>
> "Z26 counts the number of scan lines before the next frame."
>
> L O L ! That makes sense to me now! I was indeed "braindead" :-D
>
> Thanks for your help Dennis ( and the others who reponded ) ! I
> appreciate it. I actually modelled my VerticalSync routine based on yours
> in Climber05 so that's why I had a 200 scanline count. Until now, I
> thought that "43" and "44" were the ONLY magic numbers to use to set up
> timing!
>
> ( Actually, every hitchiker knows that the answer to everything is "42" )
> ;-)
>
> Okay, after another all-nighter, I think I got it working now. In z26, I
> got both screens to say "262 " lines in NTSC and "312" in PAL after I
> fixed my constant variables and added more to Overscan.
>
> If you guys out there with CCs or Superchargers can give my demo another
> whirl, hopefully it works fine now on the real thing.
> The latest is attached above.
>
> Thank you in advance! :-)
>
> - Weston
>
>
> On Mon, 24 Mar 2003 18:42:55 -0500 Dennis Debro <ddebro@xxxxxxxxxxxxx>
> writes:
> > Hi,
> >
> > > This sounds illogical! My current values: NTSC VBLANK: $01( 1
> > count X
> > > TIM64T ), IIRC, this gave my 202 lines. I haven't changed PAL
> > VBLANK yet.
> > > NTSC overscan: also $01!
> >
> > So that says your kernel is ~200 scan lines.
> >
> > > VBLANK is supposed to be 43 or 44 x TIM64T, right? So my current
> > values
> > > should cause the screen in z26 to ROLL, right?
> >
> > That depends. If you're going for a 200 scan line kernel you will
> > have adjust your vertical blank and overscan lines accordingly. For
> > example, Climber 5 has 200 scan lines for the kernel. To stay within
> > the 262 scan lines for an NTSC display I chopped 4 lines off
> > vertical blank and overscan time.
> >
> > > Does z26 show NTSC 192 lines or does it "display" all 262 lines?
> >
> > Z26 counts the number of scan lines before the next frame.
> >
> > I hope this helps you.
> >
> > Take care,
> > Dennis
> >
> >
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