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History of the TTC upwarp: Difference between revisions
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== September 21, 2013 == | == September 21, 2013 == | ||
Dota_Teabag performed an upwarp glitch.< | Dota_Teabag performed an upwarp glitch.<ref> | ||
https://www.twitch.tv/videos/40802459 (original highlight)</ref><ref> | |||
https://www.twitch.tv/videos/40802459 (original highlight)< | https://youtu.be/TTh3LY-5KKg (full archived stream)</ref> | ||
https://youtu.be/TTh3LY-5KKg (full archived stream)< | |||
== August 4, 2015 == | == August 4, 2015 == | ||
Pannenkoek2012 put a $1000 bounty on the glitch. It was thought to be an unknown hangable ceiling glitch. The hypothesis was later superceded by the random bit flip hypothesis. (See August 5, 2015)< | Pannenkoek2012 put a $1000 bounty on the glitch. It was thought to be an unknown hangable ceiling glitch. The hypothesis was later superceded by the random bit flip hypothesis. (See August 5, 2015)<ref> | ||
https://www.youtube.com/watch?v=X5cwuYFUUAY</ref> | |||
https://www.youtube.com/watch?v=X5cwuYFUUAY< | |||
== August 5, 2015 == | == August 5, 2015 == | ||
The random bit flip hypothesis was introduced in this video, labeled the current leading hypothesis.< | The random bit flip hypothesis was introduced in this video, labeled the current leading hypothesis.<ref> | ||
https://www.youtube.com/watch?v=X5cwuYFUUAY (description)< | https://www.youtube.com/watch?v=X5cwuYFUUAY (description)</ref> | ||
Pannenkoek2012: "The random bit flip hypothesis shown in this video is just the current leading hypothesis. Before that, it was the ceiling seams, and before that the bob-omb/explosion/coin, and before that landing on the platform/wall at the same frame. Frankly, a gamma ray happening to flip a particular bit seems a bit far-fetched to me. It's completely possible that some in-game mechanic treats the height float like an integer and decrements it, thus decreasing that bit from a 1 to a 0, in which case the glitch would be reproducible, and the bounty would be awarded to the person who submits that. The bounty is not rewarded for hypotheses as to what caused the upwarp, otherwise the bob-omb or ceiling hypotheses would have "solved" it long ago."<br> | Pannenkoek2012: "The random bit flip hypothesis shown in this video is just the current leading hypothesis. Before that, it was the ceiling seams, and before that the bob-omb/explosion/coin, and before that landing on the platform/wall at the same frame. Frankly, a gamma ray happening to flip a particular bit seems a bit far-fetched to me. It's completely possible that some in-game mechanic treats the height float like an integer and decrements it, thus decreasing that bit from a 1 to a 0, in which case the glitch would be reproducible, and the bounty would be awarded to the person who submits that. The bounty is not rewarded for hypotheses as to what caused the upwarp, otherwise the bob-omb or ceiling hypotheses would have "solved" it long ago."<br> | ||
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== August 8, 2016 == | == August 8, 2016 == | ||
Dane created a program that made frame perfect TASing easier, by overlaying the video on top of the emulator to compare frame by frame.< | Dane created a program that made frame perfect TASing easier, by overlaying the video on top of the emulator to compare frame by frame.<ref> | ||
https://www.youtube.com/watch?v=TD1-b3-60xY< | https://www.youtube.com/watch?v=TD1-b3-60xY</ref><ref> | ||
https://github.com/danebou/TTC-Upwarp-Overlay (the program's source code)< | https://github.com/danebou/TTC-Upwarp-Overlay (the program's source code)</ref> | ||
== August 21, 2017 == | == August 21, 2017 == | ||
A user on Reddit claimed to have done the TTC upwarp.<br> | A user on Reddit claimed to have done the TTC upwarp.<br> | ||
"LilithFaery: It happened to me once when i was playing this game for the first time maybe. Well i was still very young and i couldn't understant what had just happened... and i think i died because i panicked."< | "LilithFaery: It happened to me once when i was playing this game for the first time maybe. Well i was still very young and i couldn't understant what had just happened... and i think i died because i panicked."<ref> | ||
https://www.reddit.com/r/gaming/comments/6uxwdj/til_theres_1000_on_the_line_for_anyone_who_can/dlx1jv6?utm_source=share&utm_medium=web2x/</ref> | |||
https://www.reddit.com/r/gaming/comments/6uxwdj/til_theres_1000_on_the_line_for_anyone_who_can/< | |||
== May 8, 2017 == | == May 8, 2017 == | ||
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== October 1, 2017 == | == October 1, 2017 == | ||
Sidney made a synced audio version of the upwarp footage.< | Sidney made a synced audio version of the upwarp footage.<ref> | ||
https://www.youtube.com/watch?v=mLQQPKXPx94</ref> | |||
https://www.youtube.com/watch?v=mLQQPKXPx94< | |||
== February 21, 2018 == | == February 21, 2018 == | ||
Dota_Teabag (TeabagSRL) commented on the bitflip video, and suggested it could've been a cartridge tilt.<br> | Dota_Teabag (TeabagSRL) commented on the bitflip video, and suggested it could've been a cartridge tilt.<br> | ||
<br> | <br> | ||
"For what its worth (This is Dota_Teabag), I often had to tilt my cartridge weird ways in order to get the game to start. It seemed if i had it all the way pressed down sometimes it wouldn't start, but if i pulled it up on one side ever so slightly, it would start just fine. So if you think that is a possible factor, it is worth considering that fact."< | "For what its worth (This is Dota_Teabag), I often had to tilt my cartridge weird ways in order to get the game to start. It seemed if i had it all the way pressed down sometimes it wouldn't start, but if i pulled it up on one side ever so slightly, it would start just fine. So if you think that is a possible factor, it is worth considering that fact."<ref> | ||
https://www.youtube.com/watch?v=X5cwuYFUUAY (comment section)</ref> | |||
https://www.youtube.com/watch?v=X5cwuYFUUAY (comment section)< | |||
== June 4, 2018 == | == June 4, 2018 == | ||
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<br> | <br> | ||
Info on Mulmul here: | Info on Mulmul here: | ||
"Bug: Back-to-Back Floating Point Multiplies May Give Incorrect Results (R4300 Bug)" | "Bug: Back-to-Back Floating Point Multiplies May Give Incorrect Results (R4300 Bug)"<ref> | ||
https://web.archive.org/web/20180810105528/https://level42.ca/projects/ultra64/Documentation/man/developerNews/news-02.html< | https://web.archive.org/web/20180810105528/https://level42.ca/projects/ultra64/Documentation/man/developerNews/news-02.html</ref> | ||
<br> | <br> | ||
On May 2019, the following was said regarding these tests: | On May 2019, the following was said regarding these tests: | ||
dane: "Yeah boot gave me a hardware test. Nothing ever turned up. But at some point we can do more advanced testing." | dane: "Yeah boot gave me a hardware test. Nothing ever turned up. But at some point we can do more advanced testing." | ||
<br> | <br> | ||
bad_boot: "Tbf that hardware test was more of a test to make sure I know how to write hardware tests. It tested a pretty limited subset of things that we should test. Like just some basic mulmul tests, but no other interesting fp combos, no dma stuff"<br> | bad_boot: "Tbf that hardware test was more of a test to make sure I know how to write hardware tests. It tested a pretty limited subset of things that we should test. Like just some basic mulmul tests, but no other interesting fp combos, no dma stuff"<br> | ||
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A bruteforcer was proven to work to find a glitch where the racing penguin slid off the slide. They tried the same program for the TTC upwarp, but it wouldn't reproduce the glitch.<br> | A bruteforcer was proven to work to find a glitch where the racing penguin slid off the slide. They tried the same program for the TTC upwarp, but it wouldn't reproduce the glitch.<br> | ||
<br> | <br> | ||
"This situation is similar to that surrounding the TTC upwarp glitch in that we had footage of the glitch being done, but not a TAS recreation of it. But in this case, we actually were able to reproduce the glitch just from footage of it, whereas the TTC upwarp glitch still hasn't been reproduced. For the record, we've also tried brute forcing the TTC upwarp, but that didn't end up reproducing the glitch." - Pannen, description from [https://www.youtube.com/watch?v=kpnBKNZ2YUs CCM Racing Penguin Falling Off the Slide]< | "This situation is similar to that surrounding the TTC upwarp glitch in that we had footage of the glitch being done, but not a TAS recreation of it. But in this case, we actually were able to reproduce the glitch just from footage of it, whereas the TTC upwarp glitch still hasn't been reproduced. For the record, we've also tried brute forcing the TTC upwarp, but that didn't end up reproducing the glitch." - Pannen, description from [https://www.youtube.com/watch?v=kpnBKNZ2YUs CCM Racing Penguin Falling Off the Slide]<ref> | ||
https://github.com/danebou/Fuzzy64 (Bruteforcer source code)</ref><ref> | |||
https://github.com/danebou/Fuzzy64 (Bruteforcer source code)< | https://clips.twitch.tv/AlertStrangeMetalRiPepperonis (original video)</ref> | ||
https://clips.twitch.tv/AlertStrangeMetalRiPepperonis (original video)< | |||