Code: ASM Resource Thread

Psyinide · May 15, 2016

FBI said:
Hmm, I've been asked to do this before and it's quite the common request. However, it's so easy and straight forward, I'm always left wondering why people don't do it themselves. Then I remember, even if it's easy for me, I guess it's not as easy if you don't know what to do :P

Trainer Capture toggle by Pokeball

What this does right now, if check if the thrown Pokeball is a masterball. If it is, allow capture. If it's not a masterball then the normal "trainer has blocked the ball" will occur. To change which ball toggles the capture look at my comments in the code and change 0x1 - masterball to something else of your choice.

Spoiler:

Taken from XSE:
#define ITEM_MASTERBALL 0x1
#define ITEM_ULTRABALL 0x2
#define ITEM_GREATBALL 0x3
#define ITEM_POKEBALL 0x4
#define ITEM_SAFARIBALL 0x5
#define ITEM_NETBALL 0x6
#define ITEM_DIVEBALL 0x7
#define ITEM_NESTBALL 0x8
#define ITEM_REPEATBALL 0x9
#define ITEM_TIMERBALL 0xA
#define ITEM_LUXURYBALL 0xB
#define ITEM_PREMIERBALL 0xC

How to insert:
Compile and insert the following routine into freespace:

Spoiler:

Code:

.text .align 2 .thumb .thumb_func main: ldr r0, .Ball ldrb r0, [r0] cmp r0, #0x1 @masterball beq capture mov r0, #0x0 mov r1, #0x5 ldr r3, =(0x800E194 +1) bl linker ldr r0, =(0x802D4A0 +1) bx r0 capture: ldr r0, =(0x802D4B4 +1) bx r0 linker: bx r3 .align 2 .Ball: .word 0x2023D68

Here is a compiled version:

Code:

06 48 00 78 01 28 06 D0 00 20 05 21 04 4B 00 F0 04 F8 04 48 00 47 04 48 00 47 18 47 68 3D 02 02 95 E1 00 08 A1 D4 02 08 B5 D4 02 08

Now navigate to 0x2D498 and insert the following:

Code:

00 48 00 47 XX XX XX 08

Where XX XX XX is the reverse hex pointer +1 of where you inserted the routine.

Usage:
No usage! It's all done with the power of ASMAGIX!

Works great. I've set my script up to also check flag 0x203, if it's set stealing is disabled. I found that I need this ability because capturing a trainer's Pokemon ends the trainer battle immediately. This is my first ASM attempt, apologizes if I made any mistakes. The code works properly in my testing.

Spoiler:

Compiled version below. Swap out the XX with the Pokeball item number, 01 for a Masterball.

Spoiler:

Lance32497 · May 16, 2016

jiangzhengwenjzw said:
Yes, I also don't know how to use a party slot as a parameter by a scripter as we always don't know what's the player's pokemon. Special 0x9F is a pokemon selection screen, but who knows what the player will do? If I use it, i must decrypt its species as well.

The reason, for me, why Party slot number and not species index number, is to work well with Special 0x9F. What if the hacker wants to evolve a charmander on the third slot, and not the first slot? It would be very useful, and about specie decryption, JPAN has a routine (don't get it wrong) that decrypts pokemon, identifying specie index number is not a hard way to do via scripting, cuz JPAN has that routine.

jiangzhengwenjzw · May 16, 2016

Lance32497 said:
The reason, for me, why Party slot number and not species index number, is to work well with Special 0x9F. What if the hacker wants to evolve a charmander on the third slot, and not the first slot? It would be very useful, and about specie decryption, JPAN has a routine (don't get it wrong) that decrypts pokemon, identifying specie index number is not a hard way to do via scripting, cuz JPAN has that routine.

I don't use JPAN's engine so I don't know what his engine includes though.
My routine will evolve the first pokemon of a specified species in your team. For example, I search for ho-oh in the player's team and get that it's in the second slot, then the routine will evolve it. Therefore it can achieve the goal.
If you insist that choosing a pokemon and then checking if the selected pokemon is of specified species, you can ask someone else to enhance it as it's very very simple. For me, I think it's not bad so I don't want to touch the routines again.

GoGoJJTech · May 16, 2016

Are you guys really unaware of the Pokémon decryption routines already in the games?

Lance32497 · May 16, 2016

GoGoJJTech said:
Are you guys really unaware of the Pokémon decryption routines already in the games?

yup, is there any? Tell us please

Joexv · May 16, 2016

Lance32497 said:
yup, is there any? Tell us please

Go look through basically any routine on this website that deals with Pokemon. Besides if this is so easy to do why don't you do it yourself? What you're asking for is indeed easy to accomplish, but I'm fairly certain that just using the Selector Special then running another routine(that's already made mind you) to check the species.

BLAx501! · May 22, 2016

Touched said:

Instant NPC sprite switch

This is related to the last hack, but can be more useful for a less permanent change. It can also work on other NPCs. Callasm as usual with the NPC person number in 0x8000 (same ID you use with applymovement - and 0xFF for the player) and the target sprite (the sprite index you'd use in advance map) in 0x8001.

Code untested.

Spoiler:

It would be cool if someone could test these and write example scripts. I am too lazy.

Hmm, I've tried it, but it gives me this error on VBA-M

And freezes the game. Any ideas??

EDIT: Simple test script to change Players OW

Code:

#dynamic 0x800000
#org @start
setvar 0x8000 0xFF
setvar 0x8001 0x18
callasm 0x8800001
end

EDIT2: The error above happens when trying to change the player OW as I said. When trying to change a NPC it just does nothing but doesn't freezes.

azurile13 · May 22, 2016

BLAx501! said:
Hmm, I've tried it, but it gives me this error on VBA-M

And freezes the game. Any ideas??

EDIT: Simple test script to change Players OW

Code:

#dynamic 0x800000 #org @start setvar 0x8000 0xFF setvar 0x8001 0x18 callasm 0x8800001 end

EDIT2: The error above happens when trying to change the player OW as I said. When trying to change a NPC it just does nothing but doesn't freezes.

Don't know what specifically the problem is, but I do immediately notice at least one:

ldr r5, npc_turn
bl npc_turn

instead of

ldr r5, npc_turn
bl call_via_r5

BLAx501! · May 22, 2016

azurile13 said:
Don't know what specifically the problem is, but I do immediately notice at least one:

ldr r5, npc_turn
bl npc_turn

instead of

ldr r5, npc_turn
bl call_via_r5

Yup, you were right :D

I can now change player's OW, but NPC doesn't seem to work :/

Should Touched or Spherical Ice edit that post to add this little change??

azurile13 · May 22, 2016

BLAx501! said:
Yup, you were right :D

I can now change player's OW, but NPC doesn't seem to work :/

Should Touched or Spherical Ice edit that post to add this little change??

https://imgur.com/a/nKQXA
Sad times.

To be honest tho - although it would be nice to have that fixed, if mods had to fix every error in every post on this site, their workload would never end :D

garrett · Jun 10, 2016

Hey, are there any tutorials on-site where I can learn how to ASM?

Substitute Doll · Jun 10, 2016

garrett said:
Hey, are there any tutorials on-site where I can learn how to ASM?

Here: https://www.pokecommunity.com/threads/343871

Starfall321 · Jun 10, 2016

I found that how frustration when playing some Emerald hack with bad egg/event corruption caused by usage of unsafe flag/var.
IDK if anyone had already port Jambo's routine to Emerald because I can't find any relevant post ATM.

Emerald safe variables hack

Spoiler:

Emerald safe flag hack

Spoiler:

Pls tell me if any bug found.

GoGoJJTech · Jun 20, 2016

BigPensausage said:
<deleted post>

Someone offered to pay for it (and then I'd release it) but they never paid and I never learned how to use Github. Tough world :(
Hey, I have an idea!
You can do it!

Joexv · Jun 21, 2016

BigPensausage said:
<deleted post>

Woah when did I become a veteran???

Edit: Also if we're so unhelpful then how did I get a helping hand emblem?

Blah · Jun 21, 2016

BigPensausage said:
<deleted post>

Nah, Spherical Ice isn't that kind of person. I had received the emblem from him long before interacting with him.

It seems like this daily dose of drama stems from the response to where/how to use the encryption functions in the game. Like Joexv and GoGo had pointed out, there is a built-in Pokemon decrypter/encrypter function which you can use to retrieve and set certain aspects of a Pokemon. Since they failed to site any sources or further readings, you can check the documentation here out: https://www.romhack.me/database/23/fire-red-commonly-used-asm-rom-offsets/

The first two are the ones that Lance and friends are interested in. If you're looking for applications of these functions, there are many inside this very thread. Just take a look at the first post and choose a routine dealing with Pokemon, which you'd like to inspect. Finally, if further problems arise, the ASM help thread is in the beginner's lounge.

Please guys, lets not be so hateful to eachother. Also gogo's not a veteran, she's a nab :^)

pokefreak890 · Jun 22, 2016

Thanks GOGOJJTECH for crediting me ;) but you didn't have to put it that way but it's fine we are all cool here at the end of the day :)

i0Bjhansen0 · Jul 7, 2016

I know the ability thread is for existing abilities so I'm posting this here. I want to make new abilities that are similar to Torrent, Blaze, Overgrow, and Swarm, that use other types, mainly ones I've made. Now, I don't know ASM, and don't have a clue where to start.

But could someone please... (for Fire Red)
1. Provide an offset to change to hook a new routine off of to make a new ability.
2. Provide something similar to the original "power up" ability that has notes to what can be changed.
3. And provide a bit of code to allow the routine to return to the original routine.

So, for instance.

Spoiler:

Hopefully someone with the knowledge can understand what I typed. This is ability stuff but the ability resource thread is for gen 4-6 abilities, not custom ones. But this is ASM so here it is.

Le pug · Jul 31, 2016

Spoiler:

FBI said:
I think he wants to set a default name while skipping the intro. If you skip the intro via ASM, the default name is left as 0s aka blank.

Setting a static name to the player

Well, this is beyond simple, lol. I'll keep my post the same format though, because first post :3

How to insert:

Before you begin to insert the routine, there are a few steps. Firstly player names are limited to 8 characters with the eighth character = 0xFF.
Convert the static name you want from ascii to hex. For OP, he wanted Jesse and James which convert into:
C4 D9 E7 E7 D9 FF FF FF - Jesse
C4 D5 E1 D9 E7 FF FF FF -James
Note that if all eight bytes don't get used, you should pad them with "FF" in your hex editor.
Now insert the 8 byte names into some free space in your ROM via hex editor and write down the pointers.

Now copy the following routine into a text editor:

Spoiler:

Code:

.text .align 2 .thumb .thumb_func main: push {r0-r2, lr} ldr r0, .Name ldr r0, [r0] add r1, r0, #0x1 ldrb r1, [r1] cmp r1, #0x1 @girl beq Girl ldr r1, .CustomNameBoy ldr r2, [r1] add r1, r1, #0x4 ldr r1, [r1] str r2, [r0] add r0, r0, #0x4 str r1, [r0] pop {r0-r2, pc} Girl: ldr r1, .CustomNameGirl ldr r2, [r1] add r1, r1, #0x4 ldr r1, [r1] str r2, [r0] add r0, r0, #0x4 str r1, [r0] pop {r0-r2, pc} .align 2 .Name: .word 0x300500C .CustomNameBoy: .word 0x@pointer to boy name .CustomNameGirl: .word 0x@pointer to girl name

You'll notice that I have the lines:

Code:

.CustomNameBoy: .word 0x@pointer to boy name .CustomNameGirl: .word 0x@pointer to girl name

Change the 0x@pointer text to 0x[offset you inserted]. No need to add one.
After you've done that compile and insert into free space.

Usage:
You must callasm to the routine, and depending on the Player's gender it will set their name. To have their name inserted before the player starts playing the game, create a level script which calls this routine. If you don't know how, ask in a relevant thread (not here).

@FBI: 1) any way to pull up the naming routine for the player after the intro has been skipped so that players can name themselves later in the game? 2) can this be done for emerald? I have the research here that allows you to skip the birch intro if that helps with a starting point: https://www.pokecommunity.com/posts/8444249/

Spoiler:

FBI said:
He says I can post it, so I will now :)

Hi, this is a matter of tracking the routine that does the saving and calling it. While I don't know where it is, perhaps you can track it down if I tell you that the routine called when you hit save in the start menu is 0x6F4E8. Happy hacking!

That's the plan, if you have any routines which you would like to see, feel free to request them here.

Swapping between two possible start menus

Basically this routine will allow the player to have two different start menus. The start menu shown is dependent on a flag being set. The second one will not have a "Save" option.

How to insert:

Compile and insert into free space the following routine:

Spoiler:

Code:

.text .align 2 .thumb .thumb_func main: mov r0, #0x94 @flag 0x250 divided by 4 (change if you want) lsl r0, #0x2 ldr r1, =(0x806E6D0 +1) bl linker cmp r0, #0x0 bne showMine end: mov r0, #0x1 ldr r1, =(0x806ED70 +1) bx r1 showMine: mov r0, #0x82 lsl r0, r0, #0x4 add r0, r0, #0x9 ldr r1, =(0x806E6D0 +1) bl linker cmp r0, #0x0 beq noDex mov r0, #0x0 ldr r1, =(0x806ED94 +1) bl linker noDex: mov r0, #0x82 lsl r0, r0, #0x4 add r0, r0, #0x8 ldr r1, =(0x806E6D0 +1) bl linker cmp r0, #0x0 beq noMon mov r0, #0x1 ldr r1, =(0x806ED94 +1) bl linker noMon: mov r0, #0x2 ldr r1, =(0x806ED94 +1) bl linker mov r0, #0x3 ldr r1, =(0x806ED94 +1) bl linker mov r0, #0x5 ldr r1, =(0x806ED94 +1) bl linker mov r0, #0x6 ldr r1, =(0x806ED94 +1) bl linker pop {r0} bx r0 linker2: bx r0 linker: bx r1 .align 2

Navigate to 0x6ED5C and insert the following byte changes:

Code:

00 48 00 47 XX XX XX 08

Where XX XX XX is the pointer (plus 1) in reverse hex to where you inserted the routine.
Navigate to 0x6EE42 and change 08 to 00.

Usage:
setflag 0x250 = show menu without save
clearflag 0x250 = show menu with save

That's it. It's toggled internally depending on the flag's state.

@FBI: this has been done by shinyquagsire for me before for emerald however I can not for the life of me figure out the magic he did. I do have previous commands associated to what he did if it helps, but if this could be done for emerald and also like how it was done, set a flag to give the player the battle frontier bag and allow me to clear flags and make the menu have certain things only (i.e. disabling the use of the bag) that'd be great. Here is the previous research: https://www.pokecommunity.com/posts/8450458

Spoiler:

@Spice: this is a great feature and I am wondering why it isn't a built-in command already. Anyways, I was wondering if you could translate this into emerald? There are always work arounds for this such as a flags for each item (which is a horrible way to go about it) but it'd be easier to just count them and that's be great.

~~~~

As usual, I'd be willing to donate to the cause and if either of you need motivation, I'm here to support you helping myself and others and that is why I'm willing to donate. Thanks for any help.

Spherical Ice · Jul 31, 2016

Le pug said:
@Spice: this is a great feature and I am wondering why it isn't a built-in command already. Anyways, I was wondering if you could translate this into emerald? There are always work arounds for this such as a flags for each item (which is a horrible way to go about it) but it'd be easier to just count them and that's be great.

[EM] checkitem hack to store quantity in 0x8008

This is untested, but it should work based on the offsets I've changed. Let me know if something's up with it.

As usual, the dummy script should look something like this:

Code:

checkitem ITEM_BLUESHARD 0x1
if B_< goto @none
buffernumber 0x0 0x8008
msgbox @string1 0x6
...

#org @string1
= You have [buffer1] Blue Shards.

It will always buffer to 0x8008, but you can change the RAM loc in the routine if you want it to be some other variable.

Code:

.thumb

@ 00 4A 10 47 XX+1 XX XX XX at 080D6794

lsl r0,r0,#0x10
lsr r0,r0,#0x10
ldr r2, =(0x020375E8) @ RAM location of 0x8008 (I think)
strh r0, [r2]
ldr r2, =(0x080D6764+1)
cmp r0, r5
bcs branch
ldr r2, =(0x080D6778+1)

branch:
bx r2

Code: ASM Resource Thread

Trainer Capture toggle by Pokeball

LanceKoijer of Pokemon_Addicts

now working on katam

(☞ﾟヮﾟ)☞ http://GoGoJJTech.com ☜(ﾟヮﾟ☜)

LanceKoijer of Pokemon_Addicts

ManMadeOfGouda joexv.github.io

Pokemon Flux

Instant NPC sprite switch

Pokemon Flux

An Alolan Exeggutor

OnePunchStarfall

(☞ﾟヮﾟ)☞ http://GoGoJJTech.com ☜(ﾟヮﾟ☜)

ManMadeOfGouda joexv.github.io

Free supporter

The One that will make everything great

Creator of Pokémon: Discovery / Fat Kid

Setting a static name to the player

Swapping between two possible start menus

checkitem hack to store quantity in 0x8008

[EM] checkitem hack to store quantity in 0x8008