Nibiru GRP

GRP

• Format Type : Archive
  
• Endian Order : Little Endian
  

Format Specifications

byte {16}    - Header ((bytes) 232,193,205,195,181,247,251,233,170,251,166,244,182,210,221,161)
uint32 {4}   - Length Of Archive Header (44)
uint32 {4}   - Unknown: Archive Length?
uint32 {4}   - Version (2)
uint32 {4}   - Number Of Files (NOT including the padding entries at the end of the directory)
uint32 {4}   - Number Of Files (including padding entries at the end of the directory)
uint32 {4}   - Unknown
uint32 {4}   - Unknown

// for each file (49 bytes per entry)

char {33}    - Encrypted Filename (see notes) (null)

uint32 {4}   - File Offset

uint32 {4}   - File Length

uint32 {4}   - Unknown

uint32 {4}   - null

byte {X}     - null padding to first file offset
byte {X}     - File Data

Notes and Comments

• The original filename of each entry can be obtained by XORing the char array with the following values:

   137, 134, 137, 144, 149, 144, 137, 134,
   223, 139, 134, 146, 223, 190, 184, 187,
   172, 223, 137, 158, 141, 138, 149, 154,
   197, 223, 183, 158, 156, 148, ???, ???,
   ???

• Be careful to apply the decryption only up to the char before the zero terminator.
• The last three bytes are currently unknown since no observed file name reaches this particular length. The 33rd one probably does not exist at all as the last byte might be reserved for the zero terminator.
• Furthermore, the file name may start with one unprintable character. This is most probably a reference to a game engine internal numbering and can be ignored.

MultiEx BMS Script

Not written yet

Compatible Programs

• Game Extractor