PRX File Format
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Structure of the PRX Goes as follows
PRX File Format Structure
| Offset | Size | Description | Notes |
|---|---|---|---|
| 0x0 | 4 | Magic | ~PSP |
| 0x6 | 2 | Compression Type | 0x300-Plain, 0x200-KL4E, 0x100-2RLZ, 0x000-GZIP Little endian u16 & 0xF00 |
| 0x28 | 4 | Plaintext Size (ELF) | Little endian u32 |
| 0x2C | 4 | Total Size | Little endian u32 |
| 0x34 | 4 | Filetype | if ((s32)(header+0x34) >=0) (Determines if user (positive) or kernel (negative) ) |
| 0xD0 | 4 | Key Tag Type | Little endian u32 |
| 0x7C | 1 | Encryption Type | 2 - supported by multiloader / 0 - internal / 1 - ??? / 3 - Used by vshmain (???) |