Atari 8-bit emulator colour problem in Mode 9 - seen in demos. Atari800.
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Hi all,
I've used the Atari800 emulator for Atari 8-bit / XL/XE emulation under RetroPie 2.x and currently 3.6.
In all versions the colours are sometimes incorrect. I've seen this specifically in demos which use modified mode 9 graphics (natively 16 shades, 80 x 192).
Generally the error appears as black pixels where the context requires the lightest shade of the current palette (generally as close to white as the luminance allows).
The in-built menu has several options to control the display, including selecting PAL/NTSC, using CTIA or GTIA, changing to 'deep black' or 'vibrant' colours, etc. I've changed all of the available settings but still see the problem.
It doesn't appear to be a simple 'off by one' or palette shift, as the issue isn't consistent, even within a single demo.
I'll take take screen grabs later to illustrate the issue more clearly.
Unfortunately Google has not been my friend in investigating this issue.
Thanks in advance for any input.
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