#Rom Layout Information
All memory in this rom is in Little-endian format ##mappa_s.bin 0x003D3A00 - 0x00415D20
###Floor index 0x003D3A22 - 0x003DC620
Each floor in this game has its own 18-byte list of indecies that points to other locations in the rom.
| Offset | Value |
|---|---|
| 00-01 | Attribute Index |
| 02-03 | Pokemon spawn Index |
| 04-05 | Trap spawn Index? |
| 06-07 | Item spawn Index |
| 08-09 | Kecleon shop Index (same as item) |
| 0A-0B | Monster house item Index (same as item) |
| 0C-0D | Buried item Index (same as item) |
| 0E-0F | Unknown |
| 10-11 | Unknown |
###Floor Attribute data 0x003DC7B0 - 0x003EB1D0 Each floor in this game has 32 byte attribute data in a list, stored in order based on its value in the "Floor index". The values are as shown in the table:
| Offset | Value |
|---|---|
| 00 | Floor structure |
| 01 | Unknown |
| 02 | Terrain Appearance |
| 03 | Music index |
| 04 | Weather |
| 05 | Unknown |
| 06 | Initial Pokemon density |
| 07 | Kecleon Shop Percentage |
| 08 | Monster House Percentage |
| 09 | Flag? |
| 0A | Unknown |
| 0B | Flag? |
| 0C | Rooms with water index |
| 0D | Flag? |
| 0E | Flag? |
| 0F | Item density |
| 10 | Trap density |
| 11 | Floor counter |
| 12 | Event index? |
| 13 | Unknown |
| 14 | Buried Item density |
| 15 | Water density |
| 16 | Darkness level |
| 17 | Coin Max, steps of 40 |
| 18 | Unknown |
| 19 | Unknown |
| 1A | Unknown |
| 1B | Flag? |
| 1C-1D | Enemy IQ |
| 1E | Padding |
| 1F | Padding |
(Monster houses and Kecleon Shops may be mutually exclusive for a given floor?)
###Pokemon spawns 0x003EB1D0 to 0x00406E78
Pokemon spawn according to an indexed list in the ROM.
Each entry in the list is terminated by 8 bytes of zeros, due to being variable legnth.
Each entry has multiple pokemon in a sub-list.
Each pokemon that spawns in this sub-list has a 8 byte entry.
| Offset | Value |
|---|---|
| 00 | Unknown |
| 01 | Levelx2 |
| 02-03 | Probability of appearing? |
| 04-05 | Probability of appearing? |
| 06-07 | Pokemon ID |
Two pokemon IDs have their probablity set to bytes set to 0, and appear in every entry. Those are Kecleon, and "decoy" being 0x017F, 0x0292 respectively.
Another pokemon that seems to have its probability set to 0 is castform and its forms, which are 0x017B-0x017E.
###Item spawns 0x00409428 to 0x00415404
Each dungeon has a list of items that can spawn inside of it, and uses an incremental system, best explained by OgreGunner [here] (http://www.gamefaqs.com/boards/938930-pokemon-mystery-dungeon-explorers-of-darkness/50597686?page=5#58).
Here are the categories and the respective items that go in them.
| Category | Description |
|---|---|
| 0x0 | Thrown (Line) |
| 0x1 | Thrown (Arc) |
| 0x2 | Berries/Seeds/Vitamins |
| 0x3 | Food/Gummies |
| 0x4 | Held items |
| 0x5 | TMs |
| 0x6 | Coins |
| 0x7 | Nothing |
| 0x8 | Other items |
| 0x9 | Orbs |
| 0xA | Link Box |
| 0xB | Nothing |
| 0xC | Nothing |
| 0xD | Nothing |
| 0xE | Nothing |
| 0xF | Nothing |
"+" means in addition to the range
"-" means to exclude from the range
| Category | Items in category |
|---|---|
| 0x0 | 0x0001 thru 0x0006 + 0x0009 |
| 0x1 | 0x0007 thru 0x0008 + 0x000A |
| 0x4 | 0x000D thru 0x0044 |
| 0x2 | 0x0045 thru 0x006C , 0x0074 thru 0x0076 - 0x0062 |
| 0x3 | 0x006D thru 0x0070 , 0x0077 thru 0x0089 + 0x0073 |
| 0x8 | 0x008B thru 0x00BA - 0x00A6, 0x00AF, 0x00B0, 0x00B1, 0x00B5, 0x00B7, 0x00B8, 0x00B9 |
| 0x6 | 0x00B7 |
| 0x5 | 0x00BC thru 0x0124 - 0x00C2, 0x00C6, 0x00CD, 0x00DB, 0x00E0, 0x00E2, 0x00EC, 0x0102, 0x0103 |
| 0x9 | 0x012D thru 0x0167 - 0x0144, 0x0153, 0x0159, 0x015D, 0x0161 |
| 0xA | 0x016A |
###Credits
90% of the information in this doc has been gathered from these sources:
http://projectpokemon.org/wiki/Pok%C3%A9mon_Mystery_Dungeon_Explorers - Big help!
[Gamefaq thread for explorers of sky] (http://www.gamefaqs.com/boards/955859-pokemon-mystery-dungeon-explorers-of-sky/51698562) - Bits of scattered information
[Gamefaq thread for explorers of Darkness/Time] (http://www.gamefaqs.com/boards/938930-pokemon-mystery-dungeon-explorers-of-darkness/50597686) - Most Mappa_s.bin information!
http://apointlessplace.net/wms/
http://apointlessplace.net/wms/data/ - A bunch of helpful lists