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Author Topic: Odd Pokédex Glitch  (Read 160 times)

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James-the-Charizard

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Odd Pokédex Glitch
« on: September 05, 2019, 07:39:12 pm »
So while I was testing 0xDC's Pokédex data, somehow this happened and I have no clue what happened... (I had used one of the many backsprites of 0xC7 for this Pokédex data to happen...at least I think it caused it.) :???:
I'm really into roleplaying with Pokémon characters, but hey, glitching is fun too! :3
When it comes to glitches, I am better at Gen 1 rather than later generations.
Wanna talk? That's fine! Just drop me a message and I will reply as soon as possible. I can also be contacted via discord.
Name: James the Charizard#1268

Sherkel

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Re: Odd Pokédex Glitch
« Reply #1 on: September 05, 2019, 09:53:49 pm »
RB:220's Pokédex data comes from RAM address AA00, so if SRAM is locked (which it should be most of the time), reading it will return FF bytes instead of whatever's there when you save or load. Thus you get "9" tiles all over the place in various similar circumstances.
« Last Edit: September 05, 2019, 10:10:48 pm by Sherkel »

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James-the-Charizard

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Re: Odd Pokédex Glitch
« Reply #2 on: September 06, 2019, 05:09:26 am »
I did know of the locked ram possibilities, what’s baffled me is the glitching up near the height/weight portion, with what looks like a glitchy combo of sprites...
I'm really into roleplaying with Pokémon characters, but hey, glitching is fun too! :3
When it comes to glitches, I am better at Gen 1 rather than later generations.
Wanna talk? That's fine! Just drop me a message and I will reply as soon as possible. I can also be contacted via discord.
Name: James the Charizard#1268

Evie the Mother Hen ☽ ❤

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Re: Odd Pokédex Glitch
« Reply #3 on: September 10, 2019, 09:41:52 am »
I did know of the locked ram possibilities, what’s baffled me is the glitching up near the height/weight portion, with what looks like a glitchy combo of sprites...

Hmm that's interesting.

With the lower ID name characters they will take them from the loaded sprite data. So what appears to be a combo of sprites may be a combination of glitch text, and they may be in that position because of a series of line related control characters in just the right places.

A way to analyse it could be to replicate it then see what's at AA00 when it isn't locked by setting a breakpoint on read access when the Pokédex is brought up, copy and paste the bytes to see what the data is.

Here is how to find a breakpoint. https://glitchcity.info/wiki/Breakpoint

Then you can view AA00 and it should mirror the Pokédex data if after the emulator pauses it's the exact occurrence it's used for this.
« Last Edit: September 10, 2019, 10:09:46 am by Princess Torchic Owl Lover ☽ ❤ »

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Here have some free flowers on every post :)
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James-the-Charizard

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Re: Odd Pokédex Glitch
« Reply #4 on: September 10, 2019, 10:40:02 am »
Intriguing... Thanks for the insight! I’ve done many many tests using varying backsprites of Pokémon (namely 0xC7 & 0x00) and either got long dexes, lock-ups (either from music or buffer overflows with 99999999...), or game crashes, but that effect I’ve yet to reproduce... I also didn’t save a state. Whoopsy... ._.'
I'm really into roleplaying with Pokémon characters, but hey, glitching is fun too! :3
When it comes to glitches, I am better at Gen 1 rather than later generations.
Wanna talk? That's fine! Just drop me a message and I will reply as soon as possible. I can also be contacted via discord.
Name: James the Charizard#1268

Evie the Mother Hen ☽ ❤

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Re: Odd Pokédex Glitch
« Reply #5 on: September 10, 2019, 10:43:38 am »
Intriguing... Thanks for the insight! I’ve done many many tests using varying backsprites of Pokémon (namely 0xC7 & 0x00) and either got long dexes, lock-ups (either from music or buffer overflows with 99999999...), or game crashes, but that effect I’ve yet to reproduce... I also didn’t save a state. Whoopsy... ._.'

You're welcome ^^ I see :( hope you can get it again. :)

✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿
Here have some free flowers on every post :)
✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿



(Images © Sanrio, Nintendo, Pokémon, HAL Laboratory)

✿ Hi, I'm Evie. Transgender woman but spiritually doesn't believe 'male'/'female' needs to be defined; lives more stereotypically like a woman. Call me whichever pronouns you like. :)

Feel free to contact me here about anything regarding the site.

Forgiveness. I feel that the more people pray to our greatest source/God/mathematical equality for world peace, the more and more it manifests into reality (until our next spiritual death).

Thank you Nyapon for this lovely artwork. :3

James-the-Charizard

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Re: Odd Pokédex Glitch
« Reply #6 on: September 10, 2019, 10:48:35 am »
I'll look into it, for sure. >vO I still wanna test other unstable backsprite Pokémon for more unique results (namely 0xED). Certainly makes for a good time killer. :P
I'm really into roleplaying with Pokémon characters, but hey, glitching is fun too! :3
When it comes to glitches, I am better at Gen 1 rather than later generations.
Wanna talk? That's fine! Just drop me a message and I will reply as soon as possible. I can also be contacted via discord.
Name: James the Charizard#1268