RAM map (Boktai 1)

This is the RAM map for Boktai 1 (U). Go to ROM map.

EWRAM

Address	Type	Description
0x020011c0	i32	Solar sensor: Calibrated level (0=dark, 140=max brightness. Calibrated level = calibration - raw level, then clamp to 0-140)
0x020011c2	i32	Solar sensor: Bars. Calculated from calibrated level (0=dark, 8=max brightness)
0x02001b5e	i16	Current boss health (read only)
0x02001b6a	i16	Current trap health (read only)
0x02005610	i16	Link points in status room
0x02007542	i16	Permafrost: frost ceiling
0x02008436	i16	Purification: top left tower health
0x020086c6	i16	Purification: bottom right tower health
0x02008956	i16	Purification: top right tower health
0x02008be6	i16	Purification: bottom left tower health
0x0203c800	u16[1024]	RNG table (generated by the bootstrap RNG once on power-on)
0x0203d800	byte[?]	#Stat struct
0x0203e000	byte[?]	Stat struct - backup (created on screen transitions, reloaded on death, saved to save file when saving)
0x0203e800	byte[?]	#World struct
0x0203ec00	byte[?]	World struct - backup
0x0203f000	byte[?]	#Scratch struct

Stat struct

See also: Inventory (Boktai 1)

Address	Type	Description
0x0203d80a	i16[7]	Grenade amounts
0x0203d818	i16[7]	Battery charges
0x0203d828	char[?]	Player name
0x0203d840	i16	Max HP
0x0203d878	i32	Doomy debt
0x0203d88c	i16	Equipped lens
0x0203d88e	i16	Equipped frame
0x0203d890	i16	Equipped grenades
0x0203d892	i16	Equipped battery
0x0203d894	i16	Pineapple grenade charge
0x0203d898	i32[5]	Solar plant progress
0x0203d8b0	i32	Unlock Astro battery (must be set to *(*0x03001c90 + 0x7dc))
0x0203d8b6	i16	Playthrough count (0=New Game, 1=New Game+, 2=New Game++, etc.)
0x0203d8f0	i16[3]	Django position
0x0203d8f6	i16	Django oritentation
0x0203d8fa	i16	Current HP
0x0203d8fc	i32	IGT frames since creating save file
0x0203d900	i16	Current Map ID
0x0203d90c	u16	Current map's init script ID
0x0203d910	i32	Dungeon IGT
0x0203d914	i32	Dungeon charged energy
0x0203d918	i16	Dungeon detections
0x0203d91c	u16	Room flags (bit 2=indoors (no sun))
0x0203d91e	i32	Solar sensor: Calibrated level (see 0x020011c0)
0x0203d928	i32	Dungeon completion flags
0x0203dadc	i32	Current Area ID
0x0203daf0	u16	Dungeon related flags?
0x0203daf4	i32	Purification: Immortal health
0x0203dc18	i16	Item inventory size
0x0203dc1a	i16[42]	Item inventory IDs
0x0203dc6e	i16[42]	Item inventory amounts
0x0203dcc2	i16	Grenade limit
0x0203dcc4	i32	Lens inventory (bitmask, 1 bit per lens and level)
0x0203dcc8	i32	Frame inventory (bitmask)
0x0203dcd0	i32	Battery inventory (bitmask)
0x0203dcd8	i16[8]	Lens EXP
0x0203dce8	i32	Solar bank
0x0203dd2c	i16	Link points source
0x0203dd2e	i16	Link battles total
0x0203dd30	i16	Link battles won
0x0203dd32	i16	Item exchange amount
0x0203dd38	char[?]	Item exchange partner name

World struct

Address	Type	Description
0x0203e80e	i16	Global story progress
0x0203e898:5	bit[6]	Roadblock cleared flags: Fog castle, Dark castle (unlocks warp), Firetop, Permafrost, Sol City, Bloodrust
0x0203e8bc	i32	Action difficulty (0=Easy, 1=Normal, 2=Hard)
0x0203e8c0:0	bit[30]	Silver coin collection flags
0x0203e8c3:6	bit[16]	Life fruit collection flags
0x0203e8c5:6	bit[64]	"Chest opened" flags for current area (resets on area change)
0x0203e8cf	u8	Last dungeon rank
0x0203e8d0:3	bit	Undead: Trigger dungeon intro
0x0203ea1a	i16	Current door ID
0x0203ea91	u8	Bloodrust mansion courtyard layout

Scratch struct

Address	Type	Description
0x0203f01f	u8	Current cutscene progress
0x0203f0cc	i16	Dungeon base score
0x0203f140	u8	TAIYOJU: Tree palette (0=dark brown, 1=dark blue, 2=light brown)
0x0203f1b4	u8[13]	Carmilla: Pattern list - one of 4 hardcoded lists will be chosen at random when starting the fight
0x0203f1c1	u8[3]	Carmilla: Pattern pool (indices into pattern list)
0x0203f1c4	u8[3]	Carmilla: ???
0x0203f1c7	u8	Carmilla: Next pool value
0x0203f1c8	u8	Carmilla: Pattern index (index into pattern pool) - the (current/next?) pattern is pattern_list[pattern_pool[next_pool_value]]

IWRAM

Address	Type	Description
0x03000630	i32	Solar sensor interface: State (0=measuring, 1=resetting, 2=idle)
0x03000634	i32	Solar sensor interface: Counter (0-511, counts half-cycles of the 74LV4040 counter chip)
0x0300063c	i32	Solar sensor interface: shift out (next value to be written to GPIO_DATA)
0x03000648	void*	Script directory: Script index pointer
0x03000648	void*	Script directory: Script count
0x03000108	treasure_data*	Pointer to this map's #Treasure data (NULL if map has no treasures)
0x03001c2c	i16	Solar sensor: Bars. See 0x020011c2.
0x03001c40	u16	Active item effects (bitmask)
0x03001c54	i16	Grenade effect duration
0x03001c58	u16	Active grenade effect (bitmask)
0x03001c60	i16	Item effect duration
0x03001c90	void*	Pointer to Django's actor data?
+ 0x18	i32	Current lens level
+ 0x7dc	i32	Astro battery unlock password
0x03001cc8	void*	Pointer to linked list of bat enemies?
0x03004478	i32	Bootstrap RNG seed
0x030044f8	i32	Solar sensor interface: Is enabled (true/false)
0x030044fc	i32	Solar sensor interface: Last result (GPIO_DATA & 8)
0x03004508	i32	Solar sensor interface: Raw level (counter / 2 when GPIO_DATA & 8 becomes nonzero. 0=max brightness, 255=dark)
0x03004520	void*	Bytecode: Program counter
0x03004524	void*	Bytecode: Return value
0x0300450c	i32	Solar sensor interface: Timer interval (TM3CNT_LO will be set to -this value)
0x03004610	struct*	Pointer to current Map file descriptor (usually/always 0x02000010)
+ 0x00	i32	Number of Zones
+ 0x04	void*	Pointer to map file tile data
+ 0x0c	void*	Pointer to map file zones
+ 0x10	void*	Pointer to map file unknown block 1
+ 0x14	void*	Pointer to map file unknown block 2
+ 0x24	zone_callback[]	List of zone callbacks: struct zone_callback { /* offset 0x08 */ u16 zone_id; /* offset 0x24 */ void* bytecode_ptr; // Generally points into a Script };
0x03004620	i32	RNG index
0x030046a8	struct*	Pointer to #Save data header (usually/always? 0x03000768)
0x030046c4	struct*	Pointer to #Global save data (always 0x03000750)
0x030046e8	i16[3]	Camera position

Save data header

Offset	Type	Description
0x2c	char[?]	Player name

Global save data

Offset	Type	Description
0x00	i32	Global frame counter
0x04	i32	Solar sensor calibration (raw level - 2 at time of calibration)

Other structs

Treasure data

// pointer to this struct is at 0x03000108
struct treasure_data {
  /* offset 0x24 */ treasure_node* list_head;
};

struct treasure_node {
  /* offset 0x14 */ treasure_trigger* trigger;
  /* offset 0x28 */ u32 callback_script_id;
  /* offset 0x2c */ u32 callback_args[?];
  /* offset 0xb8 */ treasure_node* list_next;
};

struct treasure_trigger {
  /* offset 0x20 */ i16 position[3];
};

EEPROM

Byte address	Byte size	Description
0x0000	0x18	#Global save data
0x00c0	0x28	Slot 1: #Save data header
0x0200	0x28	Slot 2: #Save data header
0x0340	0x400	Slot 1: #World struct
0x0780	0x418	Slot 1: #Stat struct
0x0dc0	0x400	Slot 2: #World struct
0x1200	0x418	Slot 2: #Stat struct
0x1840	0x168
0x1a40	0x168

Each block is followed by its checksum, see Save data checksums.