View source for Pokémon BW Save File Structure

{{incomplete|Missing just about everything}}

== Save Entry ==
The primary save starts at 0x0.
The backup save starts at 0x24000.
==Main Save File & Backup==

{| {{table}}
| align="center" style="background:#f0f0f0;"|'''Start'''
| align="center" style="background:#f0f0f0;"|'''End'''
| align="center" style="background:#f0f0f0;"|'''Size'''
| align="center" style="background:#f0f0f0;"|'''Checksum'''
| align="center" style="background:#f0f0f0;"|'''Mirror'''
| align="center" style="background:#f0f0f0;"|'''Description'''
|-
| 00000||003DF||3E0||003E2||23F00||Box Names
|-
| 00400||013EF||FF0||013F2||23F02||Box 1
|-
| 01400||023EF||FF0||023F2||23F04||Box 2
|-
| 02400||033EF||FF0||033F2||23F06||Box 3
|-
| 03400||043EF||FF0||043F2||23F08||Box 4
|-
| 04400||053EF||FF0||053F2||23F0A||Box 5
|-
| 05400||063EF||FF0||063F2||23F0C||Box 6
|-
| 06400||073EF||FF0||073F2||23F0E||Box 7
|-
| 07400||083EF||FF0||083F2||23F10||Box 8
|-
| 08400||093EF||FF0||093F2||23F12||Box 9
|-
| 09400||0A3EF||FF0||0A3F2||23F14||Box 10
|-
| 0A400||0B3EF||FF0||0B3F2||23F16||Box 11
|-
| 0B400||0C3EF||FF0||0C3F2||23F18||Box 12
|-
| 0C400||0D3EF||FF0||0D3F2||23F1A||Box 13
|-
| 0D400||0E3EF||FF0||0E3F2||23F1C||Box 14
|-
| 0E400||0F3EF||FF0||0F3F2||23F1E||Box 15
|-
| 0F400||103EF||FF0||103F2||23F20||Box 16
|-
| 10400||113EF||FF0||113F2||23F22||Box 17
|-
| 11400||123EF||FF0||123F2||23F24||Box 18
|-
| 12400||133EF||FF0||133F2||23F26||Box 19
|-
| 13400||143EF||FF0||143F2||23F28||Box 20
|-
| 14400||153EF||FF0||153F2||23F2A||Box 21
|-
| 15400||163EF||FF0||163F2||23F2C||Box 22
|-
| 16400||173EF||FF0||173F2||23F2E||Box 23
|-
| 17400||183EF||FF0||183F2||23F30||Box 24
|-
| 18400||18DEB||9EC||18DEE||23F32||Inventory
|-
| 18E00||19333||534||19336||23F34||Party Pokemon
|-
| 19400||194AF||B0||194B2||23F36||Trainer Data
|-
| 19500||1959B||9C||1959E||23F38||???
|-
| 19600||1A937||1338||1A93A||23F3A||???
|-
| 1AA00||1B1C3||7C4||1B1C6||23F3C||???
|-
| 1B200||1BF53||D54||1BF56||23F3E||???
|-
| 1C000||1C02B||2C||1C02E||23F40||???
|-
| 1C100||1C757||658||1C75A||23F42||???
|-
| 1C800||1D293||A94||1D296||23F44||???
|-
| 1D300||1D4AB||1AC||1D4AE||23F46||???
|-
| 1D500||1D8EB||3EC||1D8EE||23F48||???
|-
| 1D900||1D95B||5C||1D95E||23F4A||???
|-
| 1DA00||1DBDF||1E0||1DBE2||23F4C||???
|-
| 1DC00||1DCA7||A8||1DCAA||23F4E||???
|-
| 1DD00||1E15F||460||1E162||23F50||???
|-
| 1E200||1F5FF||1400||1F602||23F52||???
|-
| 1F700||1F9A3||2A4||1F9A6||23F54||???
|-
| 1FA00||1FCDB||2DC||1FCDE||23F56||???
|-
| 1FD00||2004B||34C||2004E||23F58||???
|-
| 20100||204EB||3EC||204EE||23F5A||???
|-
| 20500||205F7||F8||205FA||23F5C||???
|-
| 20600||208FB||2FC||208FE||23F5E||???
|-
| 20900||20993||94||20996||23F60||???
|-
| 20A00||20D5B||35C||20D5E||23F62||???
|-
| 20E00||20FCB||1CC||20FCE||23F64||???
|-
| 21000||21167||168||2116A||23F66||???
|-
| 21200||212EB||EC||212EE||23F68||???
|-
| 21300||214AF||1B0||214B2||23F6A||???
|-
| 21500||2151B||1C||2151E||23F6C||???
|-
| 21600||21AD3||4D4||21AD6||23F6E||???
|-
| 21B00||21B33||34||21B36||23F70||???
|-
| 21C00||21C3B||3C||21C3E||23F72||???
|-
| 21D00||21EAB||1AC||21EAE||23F74||???
|-
| 23F00||23F8B||9C||23F9A|| ||Checksum Block
|-
| 
|}
note: sections might vary in lenght depending on how much data they store (this behavior has been seen at least in trainer data)

Start and End indexes are inclusive.

== Gym Badge Obtained Date ==
Gym badge dates are stored starting 1C704 and 407004. Byte 1 is how many years after 2000, Byte 2 is the month, and Byte 3 is the day (Byte 4 is 0, don't know if it has any meaning or if it's part of the year). 

[[Category:Structures]]
[[Category:Game Mechanics]]
[[Category:Technical References]]