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ECS Denise SPRxCTL SH1
ECS Denise SPRxCTL SH1 (sprite horizontal hires positioning bit) only works as documented in superhires. It works strangely if lores or hires.
If SH1=1 and bitplane resolution is lores or hires: first pixel column of sprite becomes transparent (disappears). The rest of sprite works normally, sprite position is not changed.
Perhaps it was originally supposed to work in lores/hires too but bug happened and it was too expensive to create another chip revision?
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