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| Description |
This hack effectively changes the framerate of the NES, which allows for some very interesting speed options for Tetris.
This hack converted Tetris from MMC1 to MMC3 to take advantage of its *scanline counter*, which lets it schedule polls at arbitrary intervals with remarkable precision. To help facilitate this, the code was optimized by a factor of 3, now spending less than 10 percent of a frame actually executing logic compared to the original 30 percent.
Currently it can divide the frame into 6 equal parts without running into issues, which allows for plenty of speeds to experiment with, like 72hz (6/5), 100hz (5/3), and even 360hz (6/1) if you're feeling adventurous. |
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