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Speedhack
 Hack of Tetris
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| Released By | fractal161 |
|---|---|
| Category | Improvement |
| Platform | NES |
| License | MIT |
| Source Code | Yes |
| Patching Information | No Special Requirements |
| Genre | Puzzle |
| Mods | G,GP |
| Patch Version | 1.1 |
| Hack Release Date | 30 May 2023 |
| Readme | |
| Downloads | 420 |
| Last Modified | 30 May 2023 |
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.
ROM / ISO Information:
- Database match: Tetris (USA)
- Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
- File SHA-1: 77747840541BFC62A28A5957692A98C550BD6B2B
- File CRC32: 6D72C53A
- ROM SHA-1: FD9079CB5E8479EB06D93C2AE5175BFCE871746A
- ROM CRC32: 1394F57E
Links:
Screenshots:
Credits:
| Contributor | Type of contribution | Listed credit |
|---|---|---|
| fractal161 | Hacking | Everything |
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