Posted By
IstvanV
on 2008-02-04
10:09:26
|  Re: plus4emu 1.2.5.1
The flickering effect at the bottom of the border is because the vertical blanking starts earlier by a half line in one of the interlaced fields; it is not a bug in the emulation. It usually cannot be seen on a TV, because a few percents of the display area are cut off, mainly for the purpose of hiding effects like this, which could also occur with normal TV broadcast signals. Although it might be possible to remove the effect by changing the timing in the interlace routine of the FLI display program.
I will try to add at least the Botticelli formats in the future versions, although they will of course not look quite as good as the FLI modes (which still need some improvement nevertheless). Is this description of the formats correct ?
Hires Botticelli:
7800-7FFF attributes
8000-9F3F bitmaps
Multi Botticelli:
same as above, but there is the string "MULT" at 7BFA, the FF16 color at 7BFE, and the FF15 color at 7BFF. The background colors are stored with the 4-bit nibbles swapped for some reason.
By the way, what do you think about the multicolor FLI mode (for example, suggested improvements) ?
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