Gregory's Server@chrisphin So, when the GG detects it's running an SMS cart due to a flag not being set within the game, it'll run in subpixel resolution mode, where horizontal pixels are split among subpixels on the LCD automatically. Simultaneously, it'll do a 3:2 pulldown of the vertical resolution. It's not quite like explained in the OP, but it's the same concept, and it's done automatically in hardware:
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3 comments
  @chrisphin The whole system is so cool with this stuff. If you look at a vertically running bar of 2 pixel height on the screen and have it scroll downward in slow motion, you can actually see the vertical pull down in motion. Probably my favorite retro handheld. |
@chrisphin Games which you can easily see this with include Castle of Illusion on the GG, which is just a repackaged SMS cartridge and thus runs in 240 horizontal mode.