JetSetIlly Posted September 11, 2021 Share Posted September 11, 2021 1 minute ago, Thomas Jentzsch said: So the playfield gets a fixed pattern? Colors seems to be updated for BK every line, for PF per frame. Correct? The PF pattern is fixed. Colours for PF and BK are set every alternate scanline. For the duration of a scanline, one of the colours will be black and the other will be another colour (possibly black). 1 minute ago, Thomas Jentzsch said: That means all 4 colors are in use. If none of them is set to permanent black, you cannot hide the background color changes. That leaves VBLANK (two extra TIA writes) or changing the BK (or PF) color twice per line (one extra TIA write). I would agree with that. Quote Link to comment Share on other sites More sharing options...
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