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## Arbitrary Code Execution Discussion

### A question about glitch item "B1F" (hex:55) - Page 1

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#### A question about glitch item "B1F" (hex:55)

Posted by: metalmario32
Date: 2018-07-05 15:15:31
As described in this video: https://www.youtube.com/watch?v=JEEB41Lz59c, B1F executes code from SRAM, more specifically from $A7D0, which is Hall of Fame data if the SRAM bank currently loaded is zero. Starting from 5:51, TheZZAZZGlitch describes how the ACE is ran through the specific Pokemon in his team. What he doesn't say in the video is exactly what HoF entry $A7D0 is located at, which Pokemon number it is, etc. I just wanted to see if I could know where $A7D0 specifically is so I can set up ACE. Thanks!

#### Re: A question about glitch item "B1F" (hex:55)

Posted by: ISSOtm
Date: 2018-07-06 04:59:10
HoF data starts at $A598
$A7D0 - $A598 = $238 (568 bytes)
One HoF party is $60 bytes (96 bytes), and $238 = 5 * $60 + $58, so that 's the 88th byte of the fifth entry, that is the 8th byte of the 6th Pokémon.
tl;dr: $A598 is the 8th byte of the 6th Pokémon of the 5th entry in the HoF. :)

#### Re: A question about glitch item "B1F" (hex:55)

Posted by: metalmario32
Date: 2018-07-06 08:17:56
Thanks!

#### Re: A question about glitch item "B1F" (hex:55)

Posted by: Guy
Date: 2018-07-06 12:34:36
I think you mean $A7D0 is the 8th byte of that Pokémon, right? Also, a question from me, seeing this video for the first time: why is a HoF party $60 bytes if each entry is the Pokémon's ID, level, and nickname? That should add up to $0A per Pokémon and $3C per entry, plus maybe a terminator byte or something…so I don't get why it's $60.

#### Re: A question about glitch item "B1F" (hex:55)

Posted by: metalmario32
Date: 2018-07-15 08:19:51

> I think you mean $A7D0 is the 8th byte of that Pokémon, right? Also, a question from me, seeing this video for the first time: why is a HoF party $60 bytes if each entry is the Pokémon's ID, level, and nickname? That should add up to $0A per Pokémon and $3C per entry, plus maybe a terminator byte or something…so I don't get why it's $60.

You know, you're right…

#### Re: A question about glitch item "B1F" (hex:55)

Posted by: Guy
Date: 2018-07-15 10:32:14
The answer's somewhere in the disassembly, but I couldn't find it. So, I'm still waiting for one of the actual knowledgeable staff members to respond. :P

#### Re: A question about glitch item "B1F" (hex:55)

Posted by: Torchickens
Date: 2018-07-15 14:18:52
Hello ^^
As ISSOtm said, A598 (bank 0) is part of the first induction, and is the first Pokémon's species.
This is a snippet of the data:
Pokémon 1:
91 06 82 87 80 91 8C 80 8D 83 84 91 50 00 00 00;
Charmander Level 6
"CHARMANDER"
Unknown 3 bytes
Pokémon 2:
24 03 8F 88 83 86 84 98 50 50 50 50 50 00 00 00
Pidgey Level 3
PIDGEY
Unknown 3 bytes
(Continues)
0:A7D0 however is sixth induction: 7th character of the sixth Pokémon.
11 characters make a Pokémon name (including 50 terminator at the end), so some space here on the sixth Pokémon is possible, or you may be able to use a special h POKé (jp $xxyy) to redirect the code in the seventh induction (which if you don't view its summary from the menu/possibly other things) I think you can successfully get a valid Hall of Fame entry other than with the h POKé.
SRAM may be closed, often resulting in a freeze due to FF bytes, however viewing a Pokémon's summary after you load your save file can open it. The Virtual Console version however may not allow you to execute SRAM as code.
Hope this answers your question.

#### Re: A question about glitch item "B1F" (hex:55)

Posted by: Guy
Date: 2018-07-15 15:48:52
Whoa! Thanks for the in-depth explanation!

#### Re: A question about glitch item "B1F" (hex:55)

Posted by: Torchickens
Date: 2018-07-15 15:52:11

> Whoa! Thanks for the in-depth explanation!

You're welcome! :)
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