[stella] cosmic ark stars missile 1

[Darrell Spice, Jr.]

test on a real Atari as I'd found out Stella wouldn't do it correctly  
and there's no z26 for the Mac.

Of course I didn't really get what I was doing, so I could have  
easily done something wrong in the test.

On Jan 19, 2008, at 11:41 AM, Eckhard Stolberg wrote:

>>>
> I did a number of tests and only got it to work with $7x and $6x  
> for Stay
> Frosty.  Possibly different sleep values would be needed if the 2nd  
> value
> isn't $6x.
> <<
>
> No, in your example you are already using the maximum delay before the
> second write to the HMxx register. This should work with any value  
> except
> $80, which seems to close the latch immediately.
>
> Did you do your tests only on emulators or on a real VCS too? I just
> dug out my old HMOVE test program, and on a real VCS it works just  
> like
> I explained in my last message. But in the emulator the starfield  
> effect
> only works for the combination of values used in Cosmic Ark. I thought
> we had this working better in z26 (which is what I wrote the test  
> program
> for originally), but apparently we must have broken general support  
> for
> the starfield effect somehow. I wonder when this happened and why  
> no-one
> ever noticed it in all those years.
>
>
> Ciao, Eckhard Stolberg
>
>
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Darrell Spice, Jr.
darrell.spice.jr at spiceware.org



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