RAM Map

RAM Map

Address	Description
0xFF0000-	battle scene text message #s with arguments, all word length, stack, pixel data for tileset 3
0xFF1000-	pixel data for tileset 1
0xFF2000-	pixel data for tileset 4
0xFF3000-	pixel data for tileset 5, battle backgrounds
0xFF4400-	obstruction data for current moving character (terrain values for all movable tiles (including targetting))
0xFF4D00-	obstruction data for current moving character (boolean values for all movable tiles (including targetting))
0xFF5600-	possible targets on each map tile during battle (FF if no target) (during targetting only)
0xFF5F00-0xFF5FFF	obstruction data for battle map (terrain)
0xFF6000-0xFF67FF
0xFF6802	pixel data for textbox, pixel data for tileset 2?
0xFF8806-	number of targets reachable by spell action
0xFF8808-	number of targets reachable by item action
0xFF880E-0xFF883D	targets reachable by attack action
0xFF883E-0xFF886D	targets reachable by spell action
0xFF886E-0xFF889D	targets reachable by item action
0xFF889E-0xFF88CD	movement to attack action targets
0xFF88CE-0xFF88FD	movement to spell action targets
0xFF88FE-0xFF892E	movement to item action targets
0xFF892E-0xFF895D	priority of attack action targets
0xFF895E-0xFF898D	priority of spell action targets
0xFF898E-0xFF89BD	priority of item action targets
0xFF9004-	spell icon graphics (when in a status screen)
0xFF9304-	item icons (plus jewels of light / evil) in status screen
0xFF9803	whether or not current enemy is currently moving (00 or FF)
0xFF9804-	battle entity move string (00-03, direction byte, until FF is found)
0xFF9B04-0xFFA303	animating tiles used on current map
0xFFA304-0xFFA703	some other kind of map tiles... possibly also animated?
0xFFA804-0xFFA807	viewplane A/B x-axis counters
0xFFA808-0xFFA80B	viewplane A/B y-axis counters
0xFFA80C-0xFFA80D	screen shake intensity
0xFFA80E-0xFFA80F
0xFFA810-0xFFA811	viewplane A x-axis current offset
0xFFA812-0xFFA813	viewplane A y-axis current offset
0xFFA814-0xFFA815	viewplane B x-axis current offset
0xFFA816-0xFFA817	viewplane B y-axis current offset
0xFFA818-0xFFA819	viewplane A x-axis destination offset
0xFFA81A-0xFFA81B	viewplane A y-axis destination offset
0xFFA81C-0xFFA81D	viewplane B x-axis destination offset
0xFFA81E-0xFFA81F	viewplane B y-axis destination offset
0xFFA820-0xFFA821	viewplane A x-axis scroll speed
0xFFA822-0xFFA823	viewplane A y-axis scroll speed
0xFFA824-0xFFA825	viewplane B x-axis scroll speed
0xFFA826-0xFFA827	viewplane B y-axis scroll speed
0xFFA828-0xFFA829
0xFFA82A
0xFFA82B	[Unused]
0xFFA82C	target entity of camera
0xFFA82D	viewplane update bitmap; goes to 1 very quickly when entering a house (layer disappearing?)... used in csc34_setBlocks
0xFFA82E-0xFFA849	map properties, loaded on map load
0xFFA84A-0xFFA84F	current event type and args
0xFFA84C	related to how map transitions (eg scroll left/right/up/down)
0xFFA84D	new map ID when warping to new map
0xFFA84E	starting X position when warping to new map
0xFFA84F	starting Y position when warping to new map
0xFFA850	starting facing when warping to new map
0xFFA851-0xFFA869	[Unused]
0xFFA86A-0xFFA86D	address of tile animations for current map, or FFFFFFFF if none
0xFFA86E-0xFFA86F	counter for map animation
0xFFA870	map to animate
0xFFA876-	address of end of window tile information
0xFFA87E-0xFFA8FD	current windows information list; entries are 16 bytes (address of tiles, width, height, x, y, from/to animation coords?)
0xFFA900
0xFFA901	[Unused]
0xFFA902-0xFFAF21	entity information
0xFFAF02-0xFFAF21	tile cursor entity information
0xFFAF22-	controlled entity and followers
0xFFAF42-0xFFAF43	holds which roof hide script we're doing (so we know which to undo); 0 when none
0xFFAF44-0xFFAF45	sprite size
0xFFAF46	map area layer type
0xFFAF47-0xFFAF66	[Unused] (byte for each ally in unused subroutine)
0xFFAF67	number of sprites to load (for death spin/explosion)
0xFFAF68	[Unused]
0xFFAF69
0xFFAF6A
0xFFAF6B
0xFFAF6C-0xFFAF6D	index for text window
0xFFAF6E-0xFFAF6F	text tile offset
0xFFAF70-0xFFAF71	Huffman barrel
0xFFAF72-0xFFAF73	Huffman length
0xFFAF74	decoded symbol
0xFFAF75	[Unused]
0xFFAF76-0xFFAF79	index for combatant ministatus window
0xFFAF7A-0xFFAF81	list of items/spells for diamond-menus
0xFFAF7A	area of effect for spells and whatnot (word)
0xFFAF82-0xFFAF8B	levelup arguments (HP/MP/ATT/DEF/AGI)
0xFFAF8C	current ministatus page
0xFFAF8D	[Unused]
0xFFAF8E	cursor radius
0xFFAF8F	[Unused]
0xFFAF90-0xFFAF91	tile position of moving combatant destination (x, y)
0xFFAF92	[Unused]
0xFFAF93
0xFFAF94-0xFFAF9D	[Unused]
0xFFAF9E
0xFFAF9F	[Unused]
0xFFAFA0-0xFFAFDF	64 1-byte slots for entities ???
0xFFAFA1-0xFFAFA9	battlescene battlesprite vdp toggle (0/1, 9 32x32 px sprites)
0xFFAFAA-0xFFAFAD	battlescene weaponsprite vdp toggle (0/1, 4 32x32 px sprites)
0xFFAFAE-0xFFAFB0	battlescene groundsprite vdp toggle (0/1, 3 32x32 px sprites)
0xFFAFE0-0xFFAFE6	[Unused]
0xFFAFE7	current diamenu choice (0-3)
0xFFAFE8-0xFFAFFA	[Unused]
0xFFAFFB	text counter (decrements every symbol) (0 is speech sound/1 is muted)
0xFFAFFC-0xFFAFFD	[Unused]
0xFFAFFE-0xFFAFFF	holds number of entries for blink animation
0xFFB000-0xFFB03B	blink animation data (x pos, y pos, new tile index (2 bytes), 15 entries)
0xFFB03C-0xFFB03D	holds counter for portrait blink (blinks when 0 and resets)
0xFFB03E-0xFFB03F	holds number of entries for speech animation
0xFFB040-0xFFB07B	speech animation data (x pos, y pos, new tile index (2 bytes), 15 entries)
0xFFB07C-0xFFB07D	counter of some sort relating to portrait only ???
0xFFB07E-0xFFB07F	portrait vdp tile bitfield
0xFFB080	state of portrait window (0-3: static, blink+mouth, blink, mouth?)
0xFFB080-0xFFB081	index for portrait window
0xFFB082	toggle to prevent portrait animation (0 stop animation)
0xFFB083	state of mouth (0 is old/1 is new tiles)
0xFFB084	state of portrait animation mirroring
0xFFB085	state of portrait location
0xFFB086-0xFFB087	index for gold window
0xFFB088-0xFFB089	index for land effect window
0xFFB08A-0xFFB08B	index for timer window
0xFFB08C-0xFFB08D	index for name window
0xFFB08E-0xFFB08F	battle actor x-axis offset
0xFFB090-0xFFB091	battle actor y-axis offset
0xFFB092-0xFFB093	battle target x-axis offset
0xFFB094-0xFFB095	battle target y-axis offset
0xFFB096-0xFFB097	width of ministatus window
0xFFB098-0xFFB099	walking sound ($4F normally, $63 if Chirrup, $00 outside battle)
0xFFB09A-0xFFB09B	index for save slot
0xFFB09C-0xFFB09D	speech sound
0xFFB09E-0xFFB09F	speech sound copy
0xFFB0A0-0xFFB0A1	currently used portrait
0xFFB0A2	[Unused]
0xFFB0A3
0xFFB0A4-0xFFB0A5	ROM checksum
0xFFB0A6-0xFFB0A7	[Unused]
0xFFB0A8	special turbo; $00 (not set) or $FF (set)
0xFFB0A9	debug mode code; $00 (not entered) or $FF (entered)
0xFFB0AA	control opponent; $00 (not set) or $FF (set)
0xFFB0AB	auto battle; $00 (not set) or $FF (set)
0xFFB0AC	cheat mode config code; $00 (not entered) or $FF (entered)
0xFFB0AD	map properties - music to play
0xFFB0AE-0xFFB12D	multipurpose index list (items in shop, members in force (all/join/purge), etc)
0xFFB12E-0xFFB12F	number of entries in multipurpose list
0xFFB130-0xFFB131	current page of items (shop or caravan)
0xFFB132-0xFFB133	current item on page (relative)
0xFFB134-0xFFB135	number of items on page
0xFFB136-0xFFB137	first memberlist entry displayed (absolute, refers to first entry)
0xFFB138-0xFFB139	selected memberlist entry (relative)
0xFFB13A-0xFFB13B	selected item index
0xFFB13C
0xFFB13D	current memberlist page
0xFFB13E	[Unused]
0xFFB13F	textbox state ??? (1 normally, 2 when animating in or out, 3 when displayed)
0xFFB140-0xFFB15F	combatant entity index for allies
0xFFB160-0xFFB17F	combatant entity index for enemies
0xFFB160-0xFFB17F	exploration entity indexes
0xFFB16F	combatant entity index for "Jar"
0xFFB180-0xFFB181	chest contents
0xFFB182-0xFFB187	[Unused]
0xFFB188	battlescene music; 02=unpro, 03=promo, 05=enemy, 06=boss, 07=zeon
0xFFB189	[Unused]
0xFFB18A-0xFFB18B	currently moving battle entity
0xFFB18C-0xFFB18D	currently moving battle entity's selected spell/item index
0xFFB18E-0xFFB18F
0xFFB190-0xFFB193	[Unused]
0xFFB194-0xFFB195	camera movement speed
0xFFB196-0xFFB197	step counter (for random battles)
0xFFB198
0xFFB199
0xFFB19A	whether or not camera has to move (00 or FF)
0xFFB19B	[Unused]
0xFFB19C-0xFFB19F	address offset for after intro
0xFFB1A0-0xFFB1A3	entity walking param
0xFFB1A4-0xFFB1A7
0xFFB1A8-0xFFB1A9	warp sound
0xFFB1AA-0xFFB1AD	pointer for config mode or credits
0xFFB1AC	stores enemy targetting AI command for each monster
0xFFB1DC	stores movement AI command for each monster
0xFFB20C-0xFFB20D	battle region activation bitfield
0xFFB20E-0xFFB3BF	[Unused]
0xFFB3C0-0xFFB3C3
0xFFB3C4-0xFFB3C5
0xFFB3C6-0xFFB3C9
0xFFB3CA-0xFFB3CB
0xFFB3CC-0xFFB3CD	frame counter for battle scene
0xFFB3CE-0xFFB3CF	entity # of current monster in battle scene
0xFFB3D0-0xFFB3D1	battle sprite # of current monster in battle scene
0xFFB3D2-0xFFB3D3	battle sprite palette # of current monster in battle scene
0xFFB3D4-0xFFB3D5	entity # of current character in battle scene
0xFFB3D6-0xFFB3D7	battle sprite # of current character in battle scene
0xFFB3D8-0xFFB3D9	battle sprite palette # of current character in battle scene
0xFFB3DA-0xFFB3DB	battle sprite # of current character's equipped weapon in battle scene
0xFFB3DC-0xFFB3DD	battle sprite palette # of current character's equipped weapon in battle scene
0xFFB3DE-0xFFB3DF	enemy battle sprite animation speed
0xFFB3E0-0xFFB3E1	enemy battle sprite animation speed counter
0xFFB3E2-0xFFB3E3	ally battle sprite animation speed
0xFFB3E4-0xFFB3E5	ally battle sprite animation speed counter
0xFFB3E6-0xFFB3E7	enemy battle sprite animation #
0xFFB3E8-0xFFB3E9	ally battle sprite animation #
0xFFB3EA-0xFFB3EB
0xFFB3EC-0xFFB3ED	battlescene enemy X offset
0xFFB3EE-0xFFB3EF
0xFFB3F0-0xFFB3F1	battlescene enemy Y offset
0xFFB3F2-0xFFB3F3	battlescene ally X offset
0xFFB3F4-0xFFB3F5	battlescene ally Y offset
0xFFB3F6-0xFFB3F7	battlescene enemy X speed
0xFFB3F8-0xFFB3F9	battlescene enemy Y speed
0xFFB3FA-0xFFB3FB	battlescene ally X speed
0xFFB3FC-0xFFB3FD	battlescene ally Y speed
0xFFB3FE-0xFFB3FF
0xFFB400-0xFFB401	copy of entity # of current character in battle scene
0xFFB402-0xFFB403	number of combatants killed during turn
0xFFB404-0xFFB405
0xFFB406-0xFFB531	variables for current spell animation code
0xFFB41E-0xFFB49D
0xFFB496-0xFFB515
0xFFB532-0xFFB541
0xFFB536-0xFFB539
0xFFB53A-0xFFB53B
0xFFB542-0xFFB561	battlescene background palette
0xFFB562-0xFFB565
0xFFB56A	potency of screen shake ???
0xFFB56C-0xFFB56D	battle sprite to make idle (1 = ally, 2 = enemy)
0xFFB56D	bitflags for battle sprite (1 = enemy battle sprite change frames)
0xFFB570	weapon frame #
0xFFB571	weapon frame priority layer
0xFFB572	weapon x-axis offset
0xFFB573	weapon y-axis offset
0xFFB574-0xFFB575	weapon idle frame #
0xFFB576	weapon idle frame 1 x-axis offset
0xFFB577	weapon idle frame 1 y-axis offset
0xFFB578	weapon idle frame 2 x-axis offset
0xFFB579	weapon idle frame 2 y-axis offset
0xFFB57A	ally battle sprite status X offset
0xFFB57B	ally battle sprite status y offset
0xFFB57C	enemy battle sprite status x offset
0xFFB57D	enemy battle sprite status y offset
0xFFB57E	battlescene ally status animation #
0xFFB57F	battlescene enemy status animation #
0xFFB582	which battle background we're currently using
0xFFB584	something to do with spell animation (current frame idx) ???
0xFFB586	spell mirroring bit
0xFFB587	current spell animation #
0xFFB58A	list of combatants killed during turn
0xFFB5AA-0xFFB629	[Unused]
0xFFB62A-0xFFB62B	gold gained from previous battle action (2 bytes)
0xFFB62C-0xFFB62D	experience gained from previous battle action (2 bytes)
0xFFB62E-0xFFB62F	current battle action type; 00=attack, 01=magic, 02=item, 03=stay, 04=explode, 05=muddle, 06=laser
0xFFB630-0xFFB631	selected item/spell number for use
0xFFB632-0xFFB633	copy of selected item/spell # for use
0xFFB634-0xFFB635	selected item slot to use (00 through 03)
0xFFB636-0xFFB637	related to double/counter .... 00 = normal attack, 01 = double attack, 02 = counter attack
0xFFB638-0xFFB639	current spell index in battle, for name/effect
0xFFB63A-0xFFB63B	current spell level in battle, for name/effect
0xFFB63C-0xFFB63D	current item index in battle, for name/effect
0xFFB63E-0xFFB63F	number of targets reachable by current action from current position
0xFFB640-0xFFB641	number of current battle party members (1 to 12)
0xFFB642-0xFFB643	number of current reserve members (0 to 29)
0xFFB646-0xFFB647	holds current script number
0xFFB648
0xFFB64A	index of first ally in current battle (FF if none)
0xFFB64B	index of last ally in current battle (FF if none)
0xFFB64C	index of first enemy in current battle (FF if none)
0xFFB64D	index of last enemy in current battle (FF if none)
0xFFB64E	index of current attacker in battle
0xFFB64F	copy of index of current attacker in battle
0xFFB651	relative axis when speaking with NPC
0xFFB652-0xFFB681	indexes of currently available targets in battle / chosen targets during skirmish
0xFFB682-0xFFB68D	indexes of current battle party members (12 slots, 1 byte each)
0xFFB68E-0xFFB6A1	indexes of current reserve members
0xFFB6A2-0xFFB6C1	indexes of current enemies
0xFFB6C2-0xFFB6D1	terrain cost list for current unit, straight from ROM
0xFFB6D2	current shop index
0xFFB6D4	variable containing x position of text, for wrapping
0xFFB6D5	variable containing y position of text (in lines)
0xFFB6D6	palette index for text color (01 of palette 3)
0xFFB6D7	length of current Huffman string (bytes)
0xFFB6E8-0xFFB6ED	indexes used for text (2 bytes each entry) (used for name/class/item/spell/etc)
0xFFB6F0-	dialogue string to print
0xFFB776-0xFFB779	contains current number loaded for printing
0xFFB778-0xFFB779	current item price
0xFFB77E	address of current Huffman-encoded script byte
0xFFB786-0xFFB795	list of equippable items (4 bytes each entry) (2 bytes item index/2 bytes slot #)
0xFFB800-0xFFB8A0	portrait art data in memory, references to tiles
0xFFB8A0-0xFFBA80	textbox art data in memory, references to tiles
0xFFD000-0xFFD01F	palette 1 (16 colors)(2 bytes each color, 0BGR)
0xFFD020-0xFFD03F	palette 2 (16 colors)(2 bytes each color, 0BGR)
0xFFD040-0xFFD05F	palette 3 (16 colors)(2 bytes each color, 0BGR)
0xFFD060-0xFFD07F	palette 4 (16 colors)(2 bytes each color, 0BGR)
0xFFD080-0xFFD09F	copy of palette 1 (ally battle sprites, current map)
0xFFD0A0-0xFFD0BF	copy of palette 2 (portraits, witch screen bubble, enemy battle sprites, pulsing range)
0xFFD0C0-0xFFD0DF	copy of palette 3 (U/I sprites, ground sprite, spell graphics)
0xFFD0E0-0xFFD0FF	copy of palette 4 (special sprite, background)
0xFFD100-0xFFD4FF	horizontal scroll data
0xFFD500-0xFFD54F	vertical scroll data
0xFFDC80-0xFFDE7F	sprite table (64 entries of 8 bytes) (1-9 ally battle sprite, 10-13 ally weapon sprite, 14-16 ground sprite, 8-12 menu cursor, 8-15 battle cursor, 38-59 spell graphics, 60-63 battle special sprite, 46-54 exploration special sprite, 20-28 summon battle sprite
0xFFDE80-0xFFDE89	loaded number
0xFFDE8A-0xFFDE93	[Unused]
0xFFDE97	player 1 button group A (80=Start, 40=A, 20=C, 10=B, 8=Right, 4=Left, 2=Down, 1=Up)
0xFFDE98	player 1 button group B (80=Start, 40=A, 20=C, 10=B, 8=Mode, 4=X, 2=Y, 1=Z)
0xFFDE99	player 2 button group A (80=Start, 40=A, 20=C, 10=B, 8=Right, 4=Left, 2=Down, 1=Up)
0xFFDE9A	player 2 button group B (80=Start, 40=A, 20=C, 10=B, 8=Mode, 4=X, 2=Y, 1=Z)
0xFFDE9B	current player (= player 1 button group A by default)
0xFFDE9C	first direction moved (same as above) if still moving (or holding move buttons)
0xFFDEA0	frame counter
0xFFDEA4-0xFFDEA5	value for "randomizing"
0xFFDEAA-0xFFDEC9	vdp register status/value (16 pairs)
0xFFDECA-0xFFDECF	[Unused]
0xFFDED0-0xFFDED3	vdp command queue pointer
0xFFDED4-0xFFDED7	dma queue pointer
0xFFDED8-0xFFDEDF	sound command queue
0xFFDEE0	number of songs in stack
0xFFDEE1	current song playing
0xFFDEE2-0xFFDEEA	previous songs
0xFFDEEC	last player input
0xFFDEED	input repeat delayer
0xFFDEEE-0xFFDEEF	[Unused]
0xFFDEF0-0xFFDEF5	related to various screen effects (fade, flash, tint) and their speed
0xFFDEF7
0xFFDEF8	what kind of action we're currently doing
0xFFDEF9	frames of current second in battle; increments 0xFFDF1E when hits 60
0xFFDEFA-0xFFDF19	pointers to vint funtions
0xFFDF1E-0xFFDF21	current battle time (in seconds; 1 sec = 60 frames)
0xFFDF22-0xFFDF25	special battle time (in seconds)
0xFFDF2A-0xFFDFA9	copy of palettes 1-4
0xFFDFAA-0xFFDFAB	fading timer
0xFFDFB0-0xFFDFB1	"random" value for determining AI/hit chance??
0xFFE000-0xFFE7FF
0xFFE800-0xFFEEFF	character data (32 character slots, 56 bytes each)
0xFFEF00-0xFFF5FF	monster data loaded from current battle (32 monster slots, 56 bytes each)
0xFFF600-0xFFF603	current force gold (4 bytes)
0xFFF604-0xFFF643	items in deals (128 slots, 4 bits each, item index is location, number of that item index is entry (up to 15 (=F))
0xFFF644	number of items in caravan
0xFFF646-0xFFF685	item indexes in caravan (64 slots, 1 byte each, 7F=no item)
0xFFF686-0xFFF705	game flags (1024 slots, 1 bit each, set=1, not set=0)
0xFFF706	camera lock x1
0xFFF707	camera lock y1
0xFFF708	camera lock x2
0xFFF709	camera lock y2
0xFFF710	current player type (00=Bowie, 01=caravan, 02=raft)
0xFFF711	current map
0xFFF712	current battle
0xFFF713	current map raft is on
0xFFF714	raft X coord
0xFFF715	raft Y coord
0xFFF717	battle message speed (00=slow, 01=medium slow, 02=medium fast, 03=fast)
0xFFF718	battle messages toggle (00=on, 01=off)
0xFFF719	current map to egress to
0xFFF71A-0xFFF799	current turn order 2 byte pairs (index, altered agility score)
0xFFF79A	current turn index * 2 (or current byte of F71A)
0xFFF79C	saved battle time (mid battle; in seconds)
0xFFF7A0	special battle record (359999 seconds = 99 hours 59 min 59 sec at the game start)
0xFFF7A4-0xFFF7A7	enemy item dropped flags (32 slots, 1 bit each, set=1, not set=0)
0xFFF7A8-0xFFF7AF	currently ordered mithril weapons at the blacksmith (4 slots, 2 bytes each)
0xFFFF38	holds which script line index we're currently using