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Final Fantasy I & II: Dawn of Souls/ROM map
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The following article is a ROM map for Final Fantasy I & II: Dawn of Souls.
The following offsets have been determined for Final Fantasy I only. All offsets are given in hexadecimal format. All currently described ASM routines are in Thumb mode. (Under Construction)
General Purpose Routines
Core Routines:
- 000EFC-000F81 (000086) = Core division-related routines
- 000F18 = General division routine. Given r0 = divident and r1 = divisor, checks for zero and calls software division
- 000F2C = As above, but only returns remainder in r0
- 000F68 = Divides r1 by r2; stores the product in [r0],[r0+8] and the remainder in [r0+4]
Game-Specific Routines:
- 014E4C-014E6B (000020) = Uncompressed tile graphic size finder routine
- 014E6C-0158E7 (000A7C) = Unknown (Short ASM routines)
- 0158E8-0158FB (000014) = Chest State Determination Routine
- 0158FC-01591B (000020) = Unknown ASM Routine (reads $02001DF0)
FF1 Stat Routines
- 01591C-0159B3 (000098) = Total Attack Determination
- 0159B4-015ACB (000118) = Total Defence Determination
- 015ACC-015B8F (0000C4) = Total Evade Determination
- 015B90-015C23 (000094) = Effective Max HP Determination
- 015C24-015CB7 (000094) = Effective Max MP Determination
- 015CB8-015D4B (000094) = Total Intellect Determination
- 015D4C-015DDF (000094) = Total Agility Determination
- 015DE0-015E73 (000094) = Total Stamina Determination
- 015E74-015F07 (000094) = Total Strength Determination
- 015F08-015F43 (00003C) = Current HP/MP Determination (And Possible Truncation)
- 015F44-015F83 (000040) = Total Accuracy Determination
FF1 Animation Routines
- 01E2FC-01E8C3 (0005C8) = Root Spell/Weapon Animation Handling
- 01E8C4-01F12F (00086C) = Unknown Routines
- 01F130-01F1A3 (000074) = Conditional Animation Effect Handling
- 01F1A4-01F743 (0005A0) = Animation Chunk Storage Routine
- 01F744-02B4B3 (00BD70) = Unknown/Animation-related routines; exact function undetermined
- 02B4B4-02BE3F (00098C) = Unknown Routines
FF1 Text, Menu and Field Spell Routines
- 02BE40-02BF7F (000140) = Base Menu Window Drawing Routine
- 02BF80-02C0C3 (000144) = Base Text Printing Routine
- 02C0C4-02C43F (00037C) = Two Unknown Routines
- 02C440-02C7A7 (000368) = Base Number Printing Routine
- 02C7A8-0302BB (003B14) = Unknown
- 0302BC-0304DB (000220) = Out-of-Battle Spell Usability Pointer Table+Routines
- 0304DC-0308BB (0003E0) = Out-of-Battle Spell Effect Pointer Table+Routines
- 0308BC-038917 (00805C) = Unknown
- 038918-039347 (000A30) = Root Status Screen Drawing Routine
- 039348-03A1A7 (000E60) = Unknown Routines
- 03A1A8-03A26B (0000C4) = Out-of-Battle Healing Spell Base Healing Determination
- 03A26C-03A2FF (000094) = Armor Equipping: Writing to Memory
- 03A300-03A37F (000080) = Armor Removing: Adding to Inventory
FF1 Shopping Routines
- 043910-04465F (000D50) = Root Buying Window Logic
- 044660-044B83 (000524) = Unknown Routines
- 044B84-044BCB (000048) = Item/Armor/Weapon Sorting Order Loading Routine
- 044BCC-044C3B (000070) = Buying: Does item already exist among team's gear?
- 044C3C-044C6F (000034) = Buying: Does item already exist in inventory?
- 044C70-0454E3 (000874) = Root Spell Buying Routine?
- 0454E4-0456A3 (0001C0) = Spell Buying: Can purchaser learn this spell?
- 0456A4-0456E3 (000040) = Class Usability for Given Spell Determination
- 0456E4-045F9B (0008B8) = Unknown Routines
- 045F9C-04714B (0011B0) = Root Buying/Selling Screen Drawing Routine
- 04714C-0471DB (000090) = Unknown Shopping-Related Routine
- 0471DC-047813 (000638) = Root Shop Data Loading Routine?
FF1 Encounter Selection and Chest Routines
- 05AF34-05B1EF (0002BC) = Root Map Feature Data Loading and Processing Routine
- 05B1F0-05B277 (000088) = Map Feature Chunk Processing: Special Tiles and Objects
- 05B278-05B533 (0002BC) = Root Map Setup Routine?
- 05B534-05B9E3 (0004B0) = Root Encounter Checker and Selector
05B5BE = Overworld Encounter RN Check 05B5D8 = OW Type Encounter Handling: 05B626 = Normal world map area 05B630 = Rivers 05B638 = Ocean/shipside 05B640 = Deserts 05B64E = Swamps 05B83E = Normal Dungeon Handling 05B85C = Soul of Chaos Dungeon Handling
- 05B9E4-05C4BF (000ADC) = Unknown Routines
- 05C4C0-05C6A7 (0001E8) = Root Chest Opening Handling
- 05C6A8-05C833 (00018C) = Unknown Routines
- 05C834-05CA33 (000200) = Chest Logic Part 2?