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Originally posted by patroclus02@Sun, 2006-02-26 @ 04:43 PM
Hello,
I'm using plane B for main display, but when I added plane A I observed a strange behaivour. Window and plane A cannot overlap. Tiles on plane A over window just don't show up.
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The window and plane A are exclusive to each other. Techincally the window is displayed using the plane A hardware, so they can't exist within the same screen area.
Think of the available planes being B and A *or* W instead of all three.
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But if I set windows to size 4x4 cells, and I write some text on it, even if it is longer than 4 cells, it still draws. I can print a 8 or 10 chars long message over the windows, being set in $11 and $12 VDP registers as 4x4 cells...
Why??
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Hmm. Emulators (Genecyst) don't get this right if you are testing in one.
If this happens on the real hardware, maybe you are assigning plane A and W to the same name table? Or did you take note that the window size is in 2-cell units, so maybe when you set it to 4 cells across, it's really 8? |
