This page contains RAM addresses to various interesting and useful processes of GBA and DS Pokemon games.
Breakpoints can be set at these addresses.
Inspiration
This page is inspired by tsanth's thread with the same name on GameFAQs: [1]
Pokemon DPP (U)
| DP RAM Address
|
Pl RAM Address
|
Description
|
Discovered by
|
| 02000FB0
|
|
Begin Seed Calculation Routine
|
mingot
|
| 0201B9E0
|
|
Set PRNG seed
|
mingot
|
| 0201B9EC
|
0201D2E8
|
PRNG
|
loadingNOW, tsanth
|
| 0201BA10
|
0201D30C
|
Alternate RNG used in some cases: Examples, PID generation for mystery gift pokemon, recalculating a PID after a failed shiny check, number which determines swarm pokemon and great marsh pokemon
|
SCV
|
| 0201BA1C
|
|
Set IRNG Seed
|
mingot
|
| 02038B70
|
0203E778
|
Script Handler
|
loadingNOW
|
|
|
0203E7D2
|
Loads address for a command then branches to that address
|
SCV
|
| 02042FB4
|
|
ARNG call for PID of Wondercard pokemon
|
SCV
|
| 02042FBA
|
|
Loads PID from wondercard to r0
|
SCV
|
| 02042FC8
|
|
First Shiny Check call during the generation of some wondercard pokemon
|
SCV
|
| 02042FD0
|
|
Beginning of loop that makes sure you do not get a shiny wondercard pokemon (in some cases)
|
SCV
|
| 0204305E
|
|
PRNG call for first set of Wondercard pokemon IVs
|
tsanth
|
| 0204309C
|
|
PRNG call for second set of Wondercard pokemon IVs
|
tsanth
|
| 0205DED4
|
|
Create chain set (not sure about address in tsanth's thread it said 205DED
|
tsanth, loadingNOW
|
| 0205DF42
|
|
End of Create chain set routine
|
tsanth, loadingNOW
|
| 0205E40C
|
|
Pokeradar Routine
|
loadingNOW, tsanth
|
| 02068AAC
|
|
Shiny Check, used to decide what sprite to show for a pokemon and to make sure dynamic PID mystery gift pokemon are not shiny as well as preventing manaphy from hatching shiny in some cases.
|
SCV
|
|
|
02078780
|
Begin Calculation of Pokemon ID for alternate forms.
|
SCV
|
| 020EBC80
|
020E1F6C
|
Division routine; R0= R0 / R1, R1=R0%R1
|
tsanth, SCV
|
|
|
020EAC58
|
Pointer to Begin Routine for Script Command 0000
|
SCV
|
|
|
020EB974
|
Pointer to Begin Routine for Script Command 0347
|
SCV
|
| 021F4DA8
|
|
Beginning of Honey Tree Routine
|
SCV
|
| 021F4EE4
|
|
Determines a value from 0-3 to use to determine which list will be used and how the shake value is calculated. If 0, slathering fails and not pokemon will show up.
|
SCV
|
| 021F4F44
|
|
Determines a number from 0-5 that represents which pokemon will be encountered in a honey tree.
|
SCV
|
| 021F4F98
|
|
Determines which list will be used by (value determined by 021F4EE4) - 1 (its not done this way, but is equivalent)
|
SCV
|
| 021F4FAC
|
|
Determines a number from 0-3 that represents how much a Honey Tree will shake
|
SCV
|
| 021F5138
|
021EFF4C
|
Returns 1 if the current tree being slathered is a Munchlax Tree and 0 otherwise.
|
SCV
|
| 02211E60
|
|
Set GRNG seed
|
magical
|
| 02211E70
|
|
GRNG
|
magical
|
| 0223C1EE
|
022377A2
|
Pokeball catching routine
|
tsanth, arcee
|
| 0223BA10
|
|
Movement Handler Start
|
tsanth
|
| 0223BA46
|
|
"Am I on grass?" check
|
tsanth
|
| 0223BB2E
|
|
Pair-battle (NPC partner) check
|
tsanth
|
| 0223BAD4
|
|
Wild Encounter Check
|
tsanth
|
| 0223BD1C
|
|
Movement Handler END
|
tsanth
|
|
|
022479E6
|
Call to get ID routine (result in r0)
|
SCV
|
|
|
0224E920
|
Start of Frozen Handler
|
SCV
|
| 0223C5B8
|
|
Start of Encounter Table Lookup Handler
|
mingot
|
| 0223C66A
|
|
Start of Water (Sweet Scent/Surfing) Encounter Table Lookup Handler
|
mingot
|
| 0223C6A0
|
|
Start of Water (Fishing) Encounter Table Lookup Handler. There are 3 branches for each of the rods in this routine with different results for old and good/super.
|
mingot
|
Pokémon HGSS (U)
| RAM Address
|
Description
|
Discovered by
|
| 0201FD44
|
PRNG advancement routine
|
Bond697
|
| 020F2998
|
Signed divmod()
|
?
|
| 020F2BA4
|
Unsigned divmod()
|
?
|
| 022440A0
|
Pickup / Honey Gather handler
|
magical
|
| 02247228
|
Pokéball catching routine
|
magical
|
| 02246B24
|
Start of Water (Fishing) Encounter Table Lookup Handler [2]
|
mingot
|
| 02247720
|
Start of Water (Sweet Scent/Surfing) Encounter Table Lookup Handler [3]
|
mingot
|
Pokémon BW (J)
(All offsets are White offsets. Black offsets are White offset minus 0x20)
Pokémon BW (U)
| RAM Address
|
Description
|
Discovered by
|
| 020056EC
|
PRNG advancement routine 1
|
Bond697
|
| 02005728
|
PRNG advancement routine 2
|
Bond697
|
| 02017EF4
|
Shiny check routine
|
Bond697
|
| 02018746
|
PID type decision
|
Bond697
|
| 02018788
|
Shiny prevention routine
|
Bond697
|
| 0203F270
|
Initial Seed Creation Routine
|
OmegaDonut
|
| 02085D54
|
DSi Detection Routine
|
chiizu
|
| 0209C0C4
|
Signed divmod- r0/r1, result in r0; r0%r1, result in r1
|
Bond697
|
| 0209C2C8
|
Unsigned divmod- r0/r1, result in r0; r0%r1, result in r1
|
Bond697
|
| 02193914
|
White Forest Trainer # Counter- returns # of trainers in White Forest
|
Bond697
|
| 021A9DB2
|
0x80000000 OR PID decision routine
|
Bond697
|
| 021AA44C
|
White Forest Battle Decision Routine- return 0 if no battle, 1 if there's a battle
|
Bond697
|
| 021F6388
|
Battle PRNG
|
Kaphotics
|
| 02215374
|
Mersenne Twister Lookup Table
|
Bond697
|
| 02215D34
|
Mersenne Twister Lookup Table Counter
|
Bond697
|
| 02216248
|
PRNG state
|
Bond697
|
| 02257030
|
Step Counter
|
Bond697
|
| 02257034
|
Shaking patch step counter
|
Bond697
|
| 023FFC3C
|
Delay
|
OmegaDonut
|
| 023FFDE8
|
Date
|
OmegaDonut
|
(All offsets are White offsets. Black offsets are White offset minus 0x20)
Pokémon Emerald (U)
| RAM Address
|
Description
|
Discovered by
|
| 02020000
|
Timer1 storage on TID creation
|
Bond697
|
| 020249C0
|
Frame counter
|
mingot
|
| 03005D80
|
PRNG
|
mingot
|
| 0806F5CC
|
PRNG advancement routine
|
mingot
|
| 082E7BE0
|
Modulus routine- r0 % r1, return result in r0
|
Bond697
|
| 080B49F2
|
Feebas setup routine on finding a Feebas tile
|
Bond697
|
| 08000758
|
VBlank interrupt
|
Bond697
|
| 080003A4
|
Main loop
|
Bond697
|
| 080005E4
|
Keypress handler
|
Bond697
|
Pokémon Ruby/Sapphire (U)
| RAM Address
|
Description
|
Discovered by
|
| 020287E4
|
Egg Creation Step Counter
|
Kaphotics
|
| 03004818
|
PRNG
|
Multiple
|
| 0803AADC
|
PID creation routine
|
Bond697
|
Pokémon Fire Red/Leaf Green (U)
| RAM Address
|
Description
|
Discovered by
|
| 02020000
|
Timer1 storage on initial seed creation
|
Bond697
|
| 03005000
|
PRNG
|
Bond697
|
| 08000558
|
Turn on Timer1 @ TM1CNT_H = 0x80
|
Bond697
|
| 08000564
|
Grab and return the value of Timer1 for use in seeding
|
Bond697
|
| 08000570
|
Turn off Timer1 @ TM1CNT_H = 0x0 and store the grabbed value to 0x02020000
|
Bond697
|
| 08044EC8
|
PRNG advancement routine
|
Bond697
|