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Update src/Rendering.md
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Co-authored-by: Eldred Habert <eldredhabert0@gmail.com>
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avivace and ISSOtm authored Sep 13, 2023
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Expand Up @@ -40,7 +40,7 @@ Mode | Action | Duration

## Mode 3 length

During Mode 3, by default the PPU outputs one pixel to the screen per dot; the screen is 160 pixels wide, so the minimum Mode 3 length is 160 + 12[^first12] = 172 dots.
During Mode 3, by default the PPU outputs one pixel to the screen per dot, from left to right; the screen is 160 pixels wide, so the minimum Mode 3 length is 160 + 12[^first12] = 172 dots.

Unlike most game consoles, the Game Boy does not always output pixels steadily[^crt]: some features cause the rendering process to stall for a couple dots.
Any extra time spent stalling *lengthens* Mode 3; but since scanlines last for a fixed number of dots, Mode 0 is therefore shortened by that same amount of time.
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