Glitch City Laboratories Archives

Hello all, I have two small programs I'd like to share that uses 8F.
They are essentially the Catch Them All and Alternative Catch Them All scripts, but they have been modified to produce a random pokemon each time.
Here they are:

Catch Them All (Randomised)
Item list:
* Any item
* 8F
TM40            x212
TM34            x89
TM08            x201


[b][u]ASM:[/u][/b]
ldh a,($D4) ;Loads random number into a
ld ($D059),a
ret


[size=12pt]Encounter random Pokemon or trainer[/size]

This code, when used , will encounter a completely random Pokemon or Trainer.

8f
Any Item xAny Qnty
Poke Ball x250
TM11 x255
TM34 x89
TM08 x201

inc b ; Useless Filler
ld a,($ffd3) ; Put a random number into a
ld ($d059),a ; force encounter with a
ret ; "It's first grade, Spongebob"

Save your game before using there's a chance you'll encounter a ZZAZZ trainer or a game-crashing pokemon.
Enjoy!

lol

I'm curious, have there been any attempts to find a bootstrap/glitch item that works for ACE in battles?

Thank you! ^O^ I guess I expected too much of the memory layout to change between battle and overworld. Having just tested it now, it does indeed work and is impressively reliable.

I guess I expected too much of the memory layout to change between battle and overworld.

Hey Guys,
Im kinda new to this whole 8F thing, but I kinda could need some help.
So I didnt read all of this thread, though it is planned. But I read much about this, including the big ZZAZZ thread, which was much helpful.

Lets start with my Problem:

So at first I was kinda scared about damaging my game with 8F, so I decided to capture some of the Pokemon I wanted to capture with the Trainer Fly Glitch and the big Map helped me to catch some of them. But suddenly when I think I was about to catch Golem, I encountered a Super Nerd, with I think it were 3 or 4 Pokemon on mid 20 Level. So I didnt thought much about and fought him, but when I beat him another fight with the same Trainer happend. I thought thats kinda wrong but decided to fight him and see if theres anything wrong with the Game. So I had Music turned off at that point and didnt realised much, so I went to a Pokemon Center and I dunno remember why I did but I changed boxes out of the awareness it would safe the game. I headed back to the Rout and noticed it would be a bit glitchy and laggy, so I turned on the Music and it would Sound like the right Melody. So I Hard resetted the GBA SP I play on and noticed Im at the PC in the Pokemon Center cause of Box Change. I googled about it and after a bit I read in this thread Glitch_meta-map_script_activation about solving the Problem with ACE. But I couldnt find any Code to help and I dont got that good programming skills. Actually it was Route 8 I messed up and the trainer to use the Trainer Fly Glitch is the furthest left one. Dunno if that helps, Im trying to remember as much as possible.

And I got another question which is:

In this Video I saw it is possible to turn a whole box into "shiny" Pokemons. This could be made to "turn a whole box into perfect Pokemons", couldnt it? Didnt know how to figure out the code for this also. Actually I found some to turn a single Pokemon into perfect, but some of them are for Yellow and some for EU versions.

About my Version:
I actually dont really know, I think its a US Version. I bought it on Ebay, cause I saw it there and it is the green one in a green Cardridge, but it is English and like the blue one.(green is my favourite colour so I had to buy it, even if it wouldnt work properly, but it actually does.) The Battery was empty in one of the ordered Cardridge, so I changed both and realized theyre not Original ones, though everything is working fine like it does in the Original ones. Including Trainer Fly Glitch, MissingNo as "SquareSign 'M SquareSign", Item Underflow and last but not least 8F with the Bootstrap Pigdevil2010 and the Codes of the ZZAZZ thread ""CATCH 'EM ALL" SCRIPT","CHANGE THE SECOND ITEM" and also this one "Non-key item duplication"

I think the "normal" Red/Blue Codes should work.

Thanks for reading me out and sorry if I posted this in the wrong place, I kinda figured out this is a helpfule thread.

Poké Ball x 175
TM34 x 1
TM14 x 201

Additionally though it sounds like you got a text box encounter upon entering the route, if the last Trainers walking animation hasn't finished, the Start menu won't appear which is the reason why you have to either battle another Trainer who walks up to you, or change boxes and be guided by the Pewter Museum man, or the Hall of Fame sequence, or by pushing a Strength boulder.

Source:

04 AF EA 01 D6 C9

inc b (technically not needed, but getting the hex:AF glitch item is harder)
xor a (if we xor a with a (which this operation does), we always get 0. This is often more convenient than a x0 quantity which requires the Celadon looping map glitch or another item beyond the end of items list)
ld (d601),a (load 'a' into D601)
ret (end the code)

TM34 is a prize for beating Brock and TM14 can be found at the Pokémon Mansion, but you can get them infinitely with the expanded items pack combined with Celadon looping map glitch.

Alternatively, set up dry underflow (described in the expanded items pack article above) but in the PC item storage. According to the glitch meta map script activation article the script for Route 8 is represented by PC item 100's quantity, so if you find an item that is x0, you can place it there (but beware not to swap one kind of item stack with itself e.g. a j. with a j. as the game will try to merge the stacks).

Crystal_'s whole box code definitely sets 'a' to to AA, and it may be that it sets both Attack/Defense and Speed/Special values to AA, which produces a valid Shiny. At a glance I'm not confident enough to know if it works this way, but if you change the value to FF there's a chance it will produce all perfect DV Pokémon. This may apply to the single Pokémon code as well.

Hmm is the Green one Pokémon Green? Pokémon Green was never officially released outside of Japan, so it looks like you may have got a bootleg copy. Official Japanese Red/Green cartridges only had a coloured sticker and a grey cartridge. I'm afraid I'm unsure if English Red/Blue codes will work for it, sorry. It's possible they use the Japanese codes instead, or neither. I think to test you can try both 01xx59D0 (English instant encounter) and 01xx36D0 (Japanese instant encounter). This way you can have a good idea whether other English or Japanese codes will work.

So I just execute this, probably 8F as first or second item and the second one doesnt matter, since the Bootstrap Code starts at the 3rd item slot, and the Route 8 should/may be fixed?
Could there be any sideaffect?

Yeah I think too it was a text box id matching encounter. But it was the last Trainer on that Route to be able to fight, or would another Trainer who walks up to me do the same? I changed the boxes a few times after that, so be guided by the Pewter Museum Man could work too? Actually the same with just pushing a boulder with Strength and triggering Hall of Fame?
Just sounds so easy, that Im unsure if I understood that right.

I dont really understand any of the Sourc Codes sadly.  :'( You can keep riding them, may I understand it somehow. So I understood hexadezimal system, which was a great moment when I finally understood how easy it is. But I dont know how translating things there and back. The "inc b" to "end the code" thing is totaly off my mind. Just the Text thing saying a qunatity of x0 is kinda harder.
And since I can use the "Change the second Item" 8F code, I dont need to get the TMs on original way. Since I cleared both of them either. But thanks for the mentioning!  :)

So Im not sure if I understand it right here, again. Changing the PC item on place 100 with an item with Quantity x0, would/could reset the glitch also? Dunno if this is the x0 thing which is harder to get you mentioned earlier. But I feel like thats a pretty risky way, though changing the item on place 99 could make another Map Sprict Glitch or even something worse.

Like above, I dont really understand putting codes into items, I neither understand putting "Commands" as "change the value to FF" in Codes. So 0xFF should be the max Number possible right? Or at least the FF is the highest "number" possible in hexadizaml systems, am I right?

Correct, thats what I meant with Green one. Pokemon Green. Actually for that cheap, I didnt really thought it would be an original. And I kinda knew the Green Game would just be a Grey Cardridge with a Green Sticker, cause we already got one of those.  :D But I think thats an Original one, though it is also in English and not in Japenese.
Since the "normal" Codes for Blue English version would pass, I think the English Codes are working for mine Version. But like I mentioned earlier and in the last post, its no original Cardridge, which can be seen by looking into them, they got a lot of other smaller hardware, so maybe some glitches wont work cause any RAM (there is the sRAM and.. dunno what else but there are more Im sure, thats what I mean with that) is may in a different place or is booting something else. I dont know, till now nothing encountered so far.

Actually are these Codes the English Codes? Real English Codes or US Codes? Is there even a difference? There are a lot more versions, or different hard- or softwares than I thought. Is there a reason for this? So clearly for other Languages the Software, but why did the Hardware changed at some Point, and for the European Versions the RAM locations are also sometimes different as far as I understood.  But thats kinda far more I wanted to know  :D

I think I catched everything up. Actually sorry if im misswriting something or if its hard to understand, English is not my main language, as you may noticed.

Thanks for welcoming me, the things I read about this Forum till now, are absolutely great. Why didnt I discovered this earlier?

PS: Since I just came from Work and wrote last post yesterday evening, I couldnt try a trick, but I also was unsure if I did understand that all right and dont want to Glitch someothing else out.
PPS: I hope I did everything right with this answer system (especially the quotes). I have not been active in a Forum since some time.

Thanks again, for the fast answer and the try to help me.  :)

Yes; the

Poké Ball x 175
TM34 x 1
TM14 x 201

should be placed at item 3, and all you need to do is use 8F (with the party setup to item 3) to activate the code to remove the glitchy Route 8 script. There should be no side effects.

Yeah I think too it was a text box id matching encounter. But it was the last Trainer on that Route to be able to fight, or would another Trainer who walks up to me do the same? I changed the boxes a few times after that, so be guided by the Pewter Museum Man could work too? Actually the same with just pushing a boulder with Strength and triggering Hall of Fame?
Just sounds so easy, that Im unsure if I understood that right.

Basically (though this is a lot of information not all of it is needed in case you want to make new codes) there are three forms that the code can be in here:

Items/quantities, bytes, code

The Big HEX List tells you how to convert them.

For instance here.

(Image deleted, due to too confusing if it is 2 times in here)

We have byte EA (in hexadecimal). The table says EA is 234 in decimal (you can use this table as a decimal to hexadecimal converter or hexadecimal to decimal converter), which is Red/Blue item TM34, which is ld ($xxyy),a.

The Game Boy operates with a combination of a modified version of Z80 programming language (namely some instructions were omitted), with instructions like ld a, xx call $xxyy etc. the ability to write to RAM (e.g. $xxyy here) an example is D059 like 01xx59D0 in the instant encounter code) or run/execute bytes which the CPU encodes as these instructions.

Because there are many different types of things you can do with the simplified Z80, documenting how it works for Game Boy games is another subject but at its simplest form it can be used to write to RAM like a GameShark (with combination of ld a, xx and ld ($xxyy),a and ret).

The location at which code is run is called the program counter. Some games like Pokémon only intend the game to run ROM or HRAM, but arbitrary code execution allows use to abuse the fact that WRAM (containing variables like our items, Pokémon list) can be executed as the simplified Z80 code despite the fact that they are meant to contain just data.

(These are all the memory regions)

So (also we can look up on the table) if you have a Lemonade, you have a 3E (or 62), or ld a, xx. Depending on where you are in the items list, it will either be an item or a quantity. Usually as a rule, the xx and yy should be regarded as either a value or address (depending on the instruction) so for instance, ld a, 3E means "load 62 into a" and ld ($xxyy),a means "load a into address $xxyy". Note also, when "a" is on the left side of the instruction it can mean you're loading the value into a. When "a" is on the right side of the instruction it can mean you're loading the value into $xxyy etc. Also there are many other letters (called registers), such as b, c, d, e. The inc b means to add +1 to b, but in my code its only use is to make sure xor a is a quantity and not an item to simplify the requirements.

So Im not sure if I understand it right here, again. Changing the PC item on place 100 with an item with Quantity x0, would/could reset the glitch also? Dunno if this is the x0 thing which is harder to get you mentioned earlier. But I feel like thats a pretty risky way, though changing the item on place 99 could make another Map Sprict Glitch or even something worse.

Yes, that's exactly right! :)

Yes, now that you mention it changing PC item 100 is a little risky :( because you could mess up other scripts and other data from D5A0-D639 (or a range like that, not 100% sure) (see https://github.com/pret/pokered/blob/master/wram.asm ) related data depending on where you are in the PC items list and which items you swap or toss from. Most often a quantity of x0 won't cause anything bad; for many map scripts it is essentially just 'no script'. However, if you're changing the item before the quantity, it could mean you're changing the script of another location with an ID corresponding to the item.

Yes, 0xFF is the highest number possible here. Although this is usually 255 (and is represented as x255 in the Lemonade quantity in the codes), in these code's case it probably means all IVs of 15 (F). If this is how it works, then all you need to do is change the Lemonade quantity to 255 to get Pokémon with maximum DVs. Unfortunately I'm not sure if it affects the EVs though (referred to as stat experience in this Generation and Generation II), sorry if you want to get a perfect Pokémon without having to train it in battles.

In regards to your question, as far as I know, there are no differences between US and English EU Red/Blue/Yellow however I've heard conflicting information that there are differences in the credits. I may have to get a UK Yellow to test because although I live in England my Yellow cartridge is from the Americas. My Red and Blue might be EU English though. All codes I know work the same between EU English and American English/Australasian Pokémon cartridges (side note: a lot of the time the language isn't converted into Commonwealth English anyway).

As for non-English EU Red/Blue/Yellow it's a different story. Many of the RAM addresses in these games are +5 from the original; so for instance 01xx59D0 becomes 01xx5ED0 in French, German, Italian and Spanish versions.

That's all right :), quite a lot of us here don't have English as their native tongue as well.

You're welcome. Ah thanks hehe. ^^

Pleasure, again I hope my post answers some of your questions. :)