Notable Breakpoints

This page contains RAM addresses to various interesting and useful processes of Pokemon DPP.

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
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)

RAM Address	Description	Discovered by
02216088	PRNG	Kazo

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	Omega Donut
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
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	Omega Donut

(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

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