[ASM & Hex] (Concept) Changing the cap on EVs and IVs.

In short, I want to know if its possible to make the cap on EVs and IVs higher. I'd like to shoot for removing the 510 limit completely (can have up to 255 in each stat despite the fact that the 3 over 252 doesn't do anything bc you need 4 EVs to increase the stat lol) and I want IVs to go up to 63 instead of 31. I'd prefer to be able to do this with a few hex edits but if ASM is required then it would still be good to mention that so this thread can remain useful for others that want to do the same. :)

Asm.

xizqu said:

Asm.

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Okay...

That one answer isn't very helpful lmao

BirdstarCat13 said:

That one answer isn't very helpful lmao

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EVs are stored as single bytes, so increasing beyond 0xFF (255) will require altering the pokemon data structure and every function that loads relevant data from it.

Similarly, IVs are stored as bits, so increasing beyond 31 would require re-structuring the data structures and related functions.

Koople said:

EVs are stored as single bytes, so increasing beyond 0xFF (255) will require altering the pokemon data structure and every function that loads relevant data from it.

Similarly, IVs are stored as bits, so increasing beyond 31 would require re-structuring the data structures and related functions.

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Ok, then what about increasing the cap on total IVs? ie, more than 510 total?

Koople said:

Similarly, IVs are stored as bits, so increasing beyond 31 would require re-structuring the data structures and related functions.

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Tldr, raising the cap to either ev's or iv's would require major asm. Either rewriting the whole routine or hooking in and making your own. There is a routine that lowers evs, I'm sure that can be modified easily to lower even more but not raise.

xizqu said:

Tldr, raising the cap to either ev's or iv's would require major asm. Either rewriting the whole routine or hooking in and making your own. There is a routine that lowers evs, I'm sure that can be modified easily to lower even more but not raise.

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That seems like really unintuitive coding. You'd think they'd literally just have it hardcoded with "510" just *in the code*

BirdstarCat13 said:

That seems like really unintuitive coding. You'd think they'd literally just have it hardcoded with "510" just *in the code*

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Of course they did as you said. The label MAX_TOTAL_EVS holds the value 510, which can be easily changed.

However I suggest you to take another approach: change IVs and EVs by changing the formula for calculating pokemon stats. If you want more EVs, just make them increase stats for every 2 points instead of 4.

You don't have to change the structure, just how the value is used by the game! :laugh-squinted:

Mr.Pkmn said:

just make them increase stats for every 2 points instead of 4.

You don't have to change the structure, just how the value is used by the game! :laugh-squinted:

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I feel like an idiot for not thinking of that sooner >_<

So...how would I do that? I definitely should have mentioned I'm on FireRed, not Emerald.

Change with an hex editor the byte from 80 to 40 at following offsets:

0x03E582 hp
0x03E5CE atk
0x03E614 def
0x03E65A spd
0x03E6A0 satk
0x03E6E6 sdef

This changes the EV division from 4 to 2.

Mr.Pkmn said:

Change with an hex editor the byte from 80 to 40 at following offsets:

0x03E582 hp
0x03E5CE atk
0x03E614 def
0x03E65A spd
0x03E6A0 satk
0x03E6E6 sdef

This changes the EV division from 4 to 2.

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Nice! In theory, could I make those bytes 20, to make each 1 EV increase the stat by 1, or change it to 10, to make 1EV=2stats, or even 5, to make 1 EV=4, etc?

BirdstarCat13 said:

Nice! In theory, could I make those bytes 20, to make each 1 EV increase the stat by 1, or change it to 10, to make 1EV=2stats, or even 5, to make 1 EV=4, etc?

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Unfortunately no, it would require to change the instruction with different bytes.

Mr.Pkmn said:

Change with an hex editor the byte from 80 to 40 at following offsets:

0x03E582 hp
0x03E5CE atk
0x03E614 def
0x03E65A spd
0x03E6A0 satk
0x03E6E6 sdef

This changes the EV division from 4 to 2.

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What would the offsets for these be in Emerald? Also, how would I remove the 510 cap in that game?

BirdstarCat13 said:

I feel like an idiot for not thinking of that sooner >_<

So...how would I do that? I definitely should have mentioned I'm on FireRed, not Emerald.

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Did you finally manage to do that?? I want to apply that to my Fire Red Rom