NSA: Difference between revisions
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| Line 4: | Line 4: | ||
* みずいろ | * みずいろ | ||
* 月姫 | * 月姫 | ||
== Structure == | == Structure == | ||
Revision as of 22:29, 8 July 2014
Used in the following games:
- Monster Girl Quest
- みずいろ
- 月姫
Structure
| Header | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Content | Description | ||||||||||||
| 2Bytes | Number of files | |||||||||||||
| 4Bytes | Index Size | |||||||||||||
| Index | ||||||||||||||
| Size | Content | Description | ||||||||||||
| Length+2Bytes | File name | 2 0x00 placed after filename | ||||||||||||
| 4Bytes | Offset | |||||||||||||
| 4Bytes | Filesize1 | |||||||||||||
| 4Bytes | Filesize2 | |||||||||||||
Note: All numbers are big endian.
Research
| First 5 Index Entries for 'arc.nsa' | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Index Size | Filename | Offset | Filesize1 | Filesize2 | ||||||||||
| 22bytes | b\00.jpg | 0 | 155636 | 155636 | ||||||||||
| 23bytes | b\001.jpg | 155636 | 140467 | 140467 | ||||||||||
| 22bytes | b\01.jpg | 296103 | 169994 | 169994 | ||||||||||
| 22bytes | b\01.jpg | 466097 | 136249 | 136249 | ||||||||||
| 22bytes | b\05.jpg | 602346 | 150570 | 150570 | ||||||||||
Two file sizes suggest the archive supports compression. However in this case, it does not appear to be used due to same size for both filesize values.