Bebbo
11th February 2005, 11:29 AM
I have posted an Excel sheet on the ftp server describing the Byte Layout for the BlueAngel Extended ROM with a view to creating a file extractor / creator so that we can build our own ms_.nbf files.
Please note that in order to work on ANY of the ROM files for the BlueAngel you must first decode them using the following:
xda3nbftool -x ms_.nbf ms_.nba 0x20040522
xda3nbftool -x nk.nbf nk.nba 0x20040521
xda3nbftool -x radio_.nbf radio_.nba 0x20040523
This results in producing three files with the same size and name but an nba extension. The ms_.nba file is the one we are concerned with at the moment, however if someone wishes to look at the nk.nba file it would be nice to be able to extract the base rom files directly as well.
The Excel sheet can be found here (ftp://xda:xda@ftp.xda-developers.com/BlueAngel/ExtendedRomSourceFileFormat.xls) if you wish to have a play! There are some areas I am unsure of as yet and as such it is still a work in progress.
I have made a start at coding a fat file extractor but:
1) Have not been programming for some years now so it will probably take me until the XDA XVII comes out!
2) Hope that someone else has already written FAT16 file handling code and could help out!
Any help greatly appreciated.....
I have now created this as a Wiki Page which can be found here (http://wiki.xda-developers.com/index.php?pagename=BA_ROMFileFormat).
Please note that in order to work on ANY of the ROM files for the BlueAngel you must first decode them using the following:
xda3nbftool -x ms_.nbf ms_.nba 0x20040522
xda3nbftool -x nk.nbf nk.nba 0x20040521
xda3nbftool -x radio_.nbf radio_.nba 0x20040523
This results in producing three files with the same size and name but an nba extension. The ms_.nba file is the one we are concerned with at the moment, however if someone wishes to look at the nk.nba file it would be nice to be able to extract the base rom files directly as well.
The Excel sheet can be found here (ftp://xda:xda@ftp.xda-developers.com/BlueAngel/ExtendedRomSourceFileFormat.xls) if you wish to have a play! There are some areas I am unsure of as yet and as such it is still a work in progress.
I have made a start at coding a fat file extractor but:
1) Have not been programming for some years now so it will probably take me until the XDA XVII comes out!
2) Hope that someone else has already written FAT16 file handling code and could help out!
Any help greatly appreciated.....
I have now created this as a Wiki Page which can be found here (http://wiki.xda-developers.com/index.php?pagename=BA_ROMFileFormat).