EarthBound/RAM map

The following article is a RAM map for EarthBound.

Active Palettes

• 000200-00023F (000040) = Current text palette
• 000240-0002FF (0000C0) = Current map palette
• 000300-00039F (0000A0) = Unclassified data
• 0003A0-0003BF (000020) = Current party palette
• 0003C0-0003DF (000020) = Current NPC palette (humans?)
• 0003E0-0003FF (000020) = Current NPC palette (nonhumans?)

Credits Sequence

• 001E60-001E?? (00000F) = Chosen four and pet's name stored for Credits parsing (Paula's mom, Paula's dad, Poo's Master).

Miscellaneous

• 005D62-005D63 (000002) = Current TPT entry
• 005D64-005D9F (00003C) = Unclassified data
• 005DA0-005DA1 (000002) = If nonzero, causes mushroomization walking-direction-jumbling.

Windows and text

• 008650-0088DF (000290) = Window statistics table
• 0088E0-0088E3 (000004) = Unclassified data
• 0088E4-008957 (000074) = Window existence table
• 008958-008958 (000001) = Current window with focus (what values does this use?)
• 008959-009642 (000CF0) = Unclassified data
• 009643-009644 (000002) = 0x00 outside of battle, 0x01 in battle (if nonzero, treat like 0x01)
• 009645-009645 (000001) = Locks button input during text parsing if 01 (used by 1F 50 and 1F 51)
• 009646-00964C (000007) = Unclassified data
• 00964D-00964D (000001) = 0x00 = Blinking triangle prompt, nonzero = Absence of this prompt
• 00964E-0096C4 (000077) = Unclassified data
• 0096C5-0097B7 (0000F2) = Text parser call stack
• 0097B8-0097B9 (000002) = Text parser stack pointer
• 0097BA-0097CA (000011) = Memory used by control code parser

Player data

• 0097F5-009800 (00000C) = First twelve letters of player name with spaces (0x50) replaced with K (0x7B). Left over from translation - Tony would try-make the English version of your name in katakana or hirigana in Mother 2.
• 009801-009818 (000018) = Player name
• 009819-00981E (000006) = Pet's name
• 00981F-009824 (000006) = Favourite food
• 009825-009828 (000004) = "PSI "
• 009829-00982E (000006) = Favourite thing
• 00982F-009830 (000002) = " " and 0x00, used with favourite thing text stuff
• 009831-009834 (000004) = Money on hand
• 009835-009838 (000004) = Money in ATM
• 009839-009839 (000001) = Learned PSI
• 00983A-00983F (000006) = Unclassified data
• 009840-009840 (000001) = Status (00 = Normal, 01 = Burnt, 03 = Skip Sandwich)
• 009841-00984A (00000A) = Unclassified data
• 00984B-00986E (000024) = Escargo Express stored items
• 00986F-009876 (000008) = Unclassified data
• 009877-009878 (000002) = Party leader X coordinate
• 009879-00987A (000002) = Unclassified data
• 00987B-00987C (000002) = Party leader Y coordinate
• 00987D-00987E (000002) = Unclassified data
• 00987F-00987F (000001) = Direction Ness is facing
• 009880-009882 (000003) = Unclassified data
• 009883-009883 (000001) = Party movement style
• 009884-00988A (000007) = Unclassified data
• 00988B-009891 (000007) = Current party members
• 009892-009895 (000004) = Current player-controlled party members
• 009896-0098A2 (00000D) = Unclassified data
• 0098A3-0098A3 (000001) = Number of party members
• 0098A4-0098A4 (000001) = Number of player controlled party members
• 0098A5-0098B0 (00000C) = Unclassified data
• 0098B1-0098B1 (000001) = Auto Fight toggle (00 = Off, 01 = On)
• 0098B2-0098B5 (000004) = Exit Mouse coordinates, stored when 1F 68 is used
• 0098B6-0098B6 (000001) = Text speed (1 = Fast, 2 = Medium, 3 = Slow)
• 0098B7-0098B7 (000001) = Sound setting (1 = Stereo, 2 = Mono)
• 0098B8-0099CD (000116) = Unclassified data
• 0099CE-009B49 (00017C) = Character stats table

Miscellaneous

• 009E54-009E55 (000002) = Timer for Dad's phone calls
• 00A21C-00A??? (000???) = Enemies in battle table
• 00AA10-00AA11 (000002) = Item-be received at the end of battle (High byte unused)
• 00B4A1-00B4A1 (000001) = Current selected save slot (1-3)
• 00B549-00B549 (000001) = Sector boundary behavior

Enemy in-battle data

• 7EA242-7EA243 (000002) = Enemy 1's Offense
• 7EA244-7EA245 (000002) = Enemy 1's Defense
• 7EA246-7EA247 (000002) = Enemy 1's Speed
• 7EA248-7EA249 (000002) = Enemy 1's Guts
• 7EA24A-7EA24B (000002) = Enemy 1's Luck