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PAL Mode
 Hack of Tetris
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| Released By | fractal161 |
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| Category | Improvement |
| Platform | NES |
| License | MIT |
| Source Code | Yes |
| Patching Information | No Special Requirements |
| Genre | Puzzle |
| Mods | GP |
| Patch Version | 1.0 |
| Hack Release Date | 26 August 2022 |
| Readme | |
| Downloads | 215 |
| Last Modified | 26 August 2022 |
Description:
Emulates the PAL edition of Tetris for people with NTSC cartridges.
Though this sounds absurd, it is accomplished by meticulously polling every 6/5 of an NTSC frame (which make the polling rate 60hz * 5/6 = 50hz), and updating the game state based off of that. This is in turn accomplished through the MMC3’s *scanline counter* (which required a conversion of NES Tetris’s mapper from MMC1).
It’s still mostly untested, but the end goal is to be able to run TASes made for PAL Tetris on here without any issues, so that it may be a true alternative for people with access to only NTSC hardware.
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 |
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