ff6a:doc:savefile

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ff6a:doc:savefile [2019/02/12 09:51]
127.0.0.1 external edit 		ff6a:doc:savefile [2019/02/27 18:29]
jvh147 some info.
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 ===== GBA Save File ===== ===== GBA Save File =====
  
-All the test have been made on a (U) save file (.sav). The first $1E00 bytes of the file are 3 blocks of $A00 bytes for the 3 save slots. They are mostly similar to SNES [[ff3:ff3us:doc:asm:ram:field_ram#fffsave_ram|$1600-$1FFF: Save RAM]]. +Most of the test have been made on a (U) save file (.sav). The save file contains three save slots, a quicksave slot and some identifying save marks. A large portion of the file goes unused. The following table lists the data blocks of the save file including their hex offsets. Scroll down for the content of the blocks.
 ^  Offsets  ^  Description  ^ ^  Offsets  ^  Description  ^
 |  ''$0000-$09FF''  | Slot 1 data | |  ''$0000-$09FF''  | Slot 1 data |
 |  ''$0A00-$13FF''  | Slot 2 data | |  ''$0A00-$13FF''  | Slot 2 data |
 |  ''$1400-$1DFF''  | Slot 3 data | |  ''$1400-$1DFF''  | Slot 3 data |
-|  ''$1E00-$1EFF''  | Seems empty | +|  ''$1E00-$1FFF''  | Save marks |
-|  ''$1F00-$1F1F''  | Ascii mark: FINAL FANTASY VI ADVANCE | +
-|  ''$1F20''        | 0x01: Game has been saved at least once. | +
-|  ''$1F21-$1FEF''  | Seems empty | +
-|  ''$1FF0''        | Most Recently Saved Slot. | +
-|  ''$1FF1-$1FF7''  | Seems empty | +
-|  ''$1FF8-$1FFF''  | FF6 static save mark: 0x1B, 0xE4 *4 |+
 |  ''$2000-$23FF''   | Data extension for slot 1 | |  ''$2000-$23FF''   | Data extension for slot 1 |
 |  ''$2400-$27FF''   | Data extension for slot 2 | |  ''$2400-$27FF''   | Data extension for slot 2 |
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 ==== Slot data ==== ==== Slot data ====
-Regular save data space.+This block is the regular save data space and the first $1E00 bytes of the file are 3 blocks of $A00 bytes for the 3 save slots. They are mostly similar to SNES [[ff3:ff3us:doc:asm:ram:field_ram#fffsave_ram|$1600-$1FFF: Save RAM]].
 ^ Offsets ^ Description ^ ^ Offsets ^ Description ^
 | Character block (repeat 16 times) || | Character block (repeat 16 times) ||
Line 219: Line 212:
 | Checkum || | Checkum ||
 | ''$09FE-09FF''  | Slot data checksum (Sum 16 from $0000-$09FD) | | ''$09FE-09FF''  | Slot data checksum (Sum 16 from $0000-$09FD) |
 +
 +==== Save marks ====
 +This block contains various identifying save marks.
 +^ Offsets ^ Description ^
 +|  ''$1E00-$1EFF''  | Seems empty |
 +|  ''$1F00-$1F1F''  | Ascii mark: FINAL FANTASY VI ADVANCE |
 +|  ''$1F20''        | 0x01: Game has been saved at least once. |
 +|  ''$1F21-$1FEF''  | Seems empty |
 +|  ''$1FF0''        | Most Recently Saved Slot. |
 +|  ''$1FF1-$1FF7''  | Seems empty |
 +|  ''$1FF8-$1FFF''  | FF6 static save mark: 0x1B, 0xE4, 0x1B, 0xE4, 0x1B, 0xE4, 0x1B, 0xE4 |
  
 ==== Data extension ==== ==== Data extension ====
  • ff6a/doc/savefile.txt
  • Last modified: 4 years ago
  • by bacteriamage