Glitch City Laboratories Archives

Amazing :)

If you were to modify an SRAM address other than B0C1 or B0D3 (stored Pokémon), would you need to modify the code in any other way for Red/Blue (I notice you have to adjust the B523 checksum)

How would you do this for Yellow and Crystal?

Is there a TM25 box name config for Perfect DVs for a party pokémon? Couldn't seem to find one - thanks! The coin case one is as follows, but can't seem to modify it correctly:

Box 1: Ap0'd'vR55
Box 2: é'm2pp095
Box 3: éA4p0'd'vQ
Box 4: é?2p0955
Box 5: 55éA4ppp
Box 6: 'v7'v'dé42p
Box 7: éD9'l'lA'lx
Box 8: 'd5555555

This should give you 255 of the first item in your item pack.

Box1: A p 0 9 é z 't x
Box2: 'd

Skeef's code was to be be used with TM25. You are probably attempting to do this with the Coin Case.

The same code for use with the coin case is

A 0 9 é z 't p 5
é Z (mult) . 9 'l 'l 'l
'l p 'd


The issue is not with Skeef's code. It translates to the following ASM:

xor a
or a,$ff
ld ($d5b9),a
or a
ret nc


…which does it's intended job of giving x255 of the first item. All i can say is ensure you have setup your bootstrapper correctly. It's
AnyPkmn
SlidePkmn
Quagsire (Holding TM02, Return as first move)

Don't forget the terminator character at the end of box name 1 which is a "ld d,b" instruction. Here it doesn't really change anything (maybe set 0 flag), but still could add confusion when you forget it.

The slide-Pokémon I provided works specifically for Coin Case. If you`re using TM25 not only does execution start at the second pokémon (compared to the third for Coin Case/first for TM17), but also at a different Place in its data.
I didn't check it, but it might even guarantee a failure when used with TM25. To my knowledge there's no setup which doesn't involve ACE to guarantee a working TM25-slide-pokémon, so you either have to use to Coin Case or try your luck with random low levels.

The issue is not with Skeef's code. It translates to the following ASM:

xor a
or a,$ff
ld ($d5b9),a
or a
ret nc


…which does it's intended job of giving x255 of the first item. All i can say is ensure you have setup your bootstrapper correctly. It's
AnyPkmn
SlidePkmn
Quagsire (Holding TM02, Return as first move)

Don't forget the terminator character at the end of box name 1 which is a "ld d,b" instruction. Here it doesn't really change anything (maybe set 0 flag), but still could add confusion when you forget it.

I'll be keeping that in mind~ how many steps does it take for the mon to develop its happiness value? And does it decrease if left in the box?

I'm curious, the box codes that let you change one mon to another, if you have an egg that is shiny (let's say it's a Wooper for example) and you alter it into a different mon (like Zapdos) via the box codes, would the egg result in a shiny Zapdos?

Happiness won't decrease if left in the box. And I'm not sure, but I think if the slide Pokemon gets any noticeable happiness increase then it will mess up the code, because the slide Pokemon has to be freshly caught or hatched with no stat experience and happiness is another one of those factors I guess.

However, I was using the coin case a lot yesterday with the same slide Pokemon and walking from the PC in Cherrygrove to outside the mart in Cherrygrove for coin cases glitches, when you repeat that enough times you're certainly walking a good number of steps, but still my slide Pokemon still worked. And today I was using the hatched Togepi as a slide Pokemon as a test and it worked, so I would certainly recommend freshly hatched Pokemon.

As for your question, I haven't messed around with shiny codes yet but if the first code changed the egg to shiny and then you changed the Pokemon species then it should still be shiny as that is determined by the DV's which are made when you use you shiny code.

Not quite. Even if your slide's happiness value increases, it doesn't matter too much unless it reaches a malicious opcode. What I mean by that is, any opcode that changes code flow (call,ret,jp,jr), any opcode that stops the cpu (stop, and MAYBE halt, I'm not quite sure), any op that messes with the stack (inc sp,push,pop,ld sp,rst,etc.), any invalid ops ($D3,$DB,$DD,$E3,$E4,$EB,$EC,$ED,$F4,$FC,$FD), and "di".

The Happiness value increments upon walking 256 steps, and when freshly caught, has a value of $00. The first "malicious" opcode it encounters first is "stop", which is hex $10. So, a freshly caught slide pokemon is considered "broken" after 4096 steps. However, you can easily set this value to $11 (ld de,$xxyy) by walking 256 more steps. So if you find that your slide has stopped working, walk 256 more steps and see if that fixes it.

Also, it is worth noting that happiness is not the only thing that affects slide pokemon.
Here's a list of all factors that affect slide pokemon:

Attack EV
Defense Ev
Speed EV
Special EV
Attack/Defense IV
Speed/special IV
PP of current moveset
Happiness/Hatch Time
Pokerus
Caught Information
Level
Status
Hp
Max Hp
Attack
Defense
Speed
Special Defense
Special Attack - Must correspond to an instruction that is one byte long, otherwise the jump instruction that executes your code will be absorbed!