Pokemon Save Structure (X/Y): Difference between revisions

Revision as of 15:44, 28 October 2013

Pokémon in the games Pokémon X and Y are stored in a new 232 byte structure (for the box data only). Party Pokémon hold 28 bytes of additional data for overworld and battle values. We recommend using the pkx extension for decrypted 232-byte box data and 260-byte party data structures.

Checksum / Block Shuffling / Encryption

There have been some changes compared to the Generation 4 and Generation 5 structures. First, the LCRNG to decrypt the structure's blocks is now seeded with the PID. Second, the blocks are now 56 bytes instead of the previous 32. However, the way the blocks are shuffled based on the PID did not change.

Unencrypted bytes (0x0-0x7)

Offset	Contents
0x00-0x03	Personality value (Also known as the PID)
0x04-0x05	Sanity Placeholder
0x06-0x07	Checksum

Encrypted bytes

Block A (0x8-0x3F)

Offset	Contents
0x08-0x09	National Pokédex ID
0x0A-0x0B	Held Item
0x0C-0x0D	OT ID
0x0E-0x0F	OT Secret ID
0x10-0x13	Experience points
0x14	Ability
0x15	Ability number
0x16-0x17	Unknown
0x18-0x1B	Unknown
0x1C	Nature
0x1D	Bit 0 - Fateful Encounter Flag Bit 1 - Female Bit 2 - Genderless Bit 3-7 - Alternate Forms
0x1E	HP Effort Value
0x1F	Attack Effort Value
0x20	Defense Effort Value
0x21	Speed Effort Value
0x22	SP Attack Effort Value
0x23	SP Defense Effort Value
0x28-0x2A	Unknown / Unused
0x2B	Pokérus
0x2C-0x3F	Unknown / Unused

Block B (0x40-0x77)

Offset	Contents
0x40-0x57	Nickname
0x58-0x59	Unknown
0x5A-0x5B	Move 1 ID
0x5C-0x5D	Move 2 ID
0x5E-0x5F	Move 3 ID
0x60-0x61	Move 4 ID
0x62	Move 1 Current PP
0x63	Move 2 Current PP
0x64	Move 3 Current PP
0x65	Move 4 Current PP
0x66-0x69	Move PP Ups
0x6A-0x6B	Move 1 ID at hatching
0x6C-0x6D	Move 2 ID at hatching
0x6E-0x6F	Move 3 ID at hatching
0x70-0x71	Move 4 ID at hatching
0x74-0x78	Bits 0-29 - Individual Values HP ( [0-31] << 0 ) Attack ( [0-31] << 5 ) Defense ( [0-31] << 10 ) Speed ( [0-31] << 15 ) SP Attack ( [0-31] << 20 ) SP Defense ( [0-31] << 25 ) Bit 30 - IsEgg Flag Bit 31 - IsNicknamed Flag

Block C (0x78-0xAF)

This block is dedicated to the history/memory of the Pokémon.

Offset	Contents
0x78-0x88	OT Name traded to (updated every time the owner's OT changes)
0x89-0xAF	Unknown

Block D (0xB0-0xE7)

Offset	Contents
0xB0-0xBF	OT Name
0xD1-0xD3	Date Egg Received
0xD4-0xD6	Date Met
0xD8-0xD9	Egg Location
0xDA-0xDB	Met At Location
0xDC	Pokéball
0xDD	Bit 0-6 - Encounter Level Bit 7 - Female OT Gender
0xDE	Unknown / Unused
0xDF	OT Game version (24=X, 25=Y)
0xE0	Country ID
0xE1	Region ID
0xE2	3DS region ID
0xE3	OT language
0xE4-0xE7	Unknown / Unused

Battle Stats

The battle stats are encrypted in the exact same manner as the main pkx data. The seed is still the PID.

Encrypted Bytes

Offset	Contents
0xE8	Bits 0-2 - Asleep (0-7 rounds) Bit 3 - Poisoned Bit 4 - Burned Bit 5 - Frozen Bit 6 - Paralyzed Bit 7 - Toxic
0xE9	Unknown - Flags
0xEA-0xEB	Unknown / Unused
0xEC	Level
0xED-0xEE	Unknown / Unused
0xEF	Unknown / Unused
0xF0-0xF1	Current HP
0xF2-0xF3	Max HP
0xF4-0xF5	Attack
0xF6-0xF7	Defense
0xF8-0xF9	Speed
0xFA-0xFB	Special Attack
0xFC-0xFD	Special Defense
0xFE-0xFF	Unknown / Unused
0x100-0x103	Unknown / Unused

@@ Line 2: / Line 2: @@
 == Checksum / Block Shuffling / Encryption ==
 There have been some changes compared to the [[Pokemon NDS Structure|Generation 4]] and [[Pokemon Black/White NDS Structure|Generation 5]] structures. First, the LCRNG to decrypt the structure's blocks is now seeded with the PID. Second, the blocks are now 56 bytes instead of the previous 32. However, the way the blocks are shuffled based on the PID  did not change.
-== Unencrypted bytes (0-8)  ==
+== Unencrypted bytes (0x0-0x7)  ==
 {| border="1" style="border: 1px solid #999; border-collapse: collapse;"
 |- style="background: #ccc;" align="center"
@@ Line 19: / Line 19: @@
 == Encrypted bytes ==
-=== Block A (8-40h) ===
+=== Block A (0x8-0x3F) ===
 {| border="1" style="border: 1px solid #999; border-collapse: collapse;"
 |- style="background: #ccc;" align="center"
@@ Line 86: / Line 86: @@
 |}
-=== Block B (40-78h) ===
+=== Block B (0x40-0x77) ===
 {| border="1" style="border: 1px solid #999; border-collapse: collapse;"
 |- style="background: #ccc;" align="center"
@@ Line 148: / Line 148: @@
 |}
-=== Block C (78-B0h) ===
+=== Block C (0x78-0xAF) ===
 This block is dedicated to the history/memory of the Pokémon.
 {| border="1" style="border: 1px solid #999; border-collapse: collapse;"
@@ Line 157: / Line 157: @@
 | 0x78-0x88
 | OT Name traded to (updated every time the owner's OT changes)
+|- style="background: #ddd;" align="center"
+| 0x89-0xAF
+| Unknown
 |}
-=== Block D (B0-E8h) ===
+=== Block D (0xB0-0xE7) ===
 {| border="1" style="border: 1px solid #999; border-collapse: collapse;"
 |- style="background: #ccc;" align="center"
@@ Line 262: / Line 266: @@
 | Unknown / Unused
 |}
+[[Category:Structures]]
+[[Category:Game Mechanics]]
+[[Category:ROM Research]]