YPF
Used in the following games:
- Eroge! ~Sex and Games Make Sexy Games~
Structure
| Header | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Content | Description | ||||||||||||
| 4Bytes | Magic/ID | "YPF/0" | ||||||||||||
| 4Bytes | Unknown1 | Static? | ||||||||||||
| 4Bytes | Unknown2 | File Count? | ||||||||||||
| 4Bytes | Unknown3 | Index Size? | ||||||||||||
| 16Bytes | Unknown0 | Padding? | ||||||||||||
| Index Entry | ||||||||||||||
| Size | Content | Description | ||||||||||||
| 4Bytes | Unknown1 | |||||||||||||
| 1Bytes | Unknown2 | Possible filename length | ||||||||||||
| ?Bytes | Filename | |||||||||||||
| 4Bytes | Unknown3 | Possible File size1 | ||||||||||||
| 4Bytes | Unknown4 | Possible File size2 (compression?) | ||||||||||||
| 10Bytes | Unknown5 | |||||||||||||
Research
sn 30,869,553 18 716
# EntrySize First 5bytes Filename size
01 36 22 03 5B AA 53 13+1
02 36 E3 48 2B 9A 53 13+1
03 36 92 2A 3B 9753 13+1
04 53 E0 81 A7 8D 5D 29+1
05 42 E9 AB B7 ED 42 19+1
06 33 8B D9 C2 E4 4A 10+1
07 36 83 1B EB E0 53 13+1
08 36 33 32 8B DD 53 13+1
09 51 50 1F C2 CE 5E 28+1
10 36 F3 94 0B 28 53 13+1
Hints:
B8 should be 00
53 should be 13 or 14
Comments
Index data may be protected.
XOR by FF then XOR by 40 may work.