Hello,
I was interested in getting code execution before the game's own NitroMain(), but my final ARM9 binary was bigger than the original one, and eventually was overlapping with the ARM7 binary.
Instead to try all the funcky ways to compress my code (that anyway is not a viable solution in most of the cases since the padding between ARM9 and ARM7 binaries is extremely small), I decided to write a tool to help me (and maybe other roms hackers/reverse engineers) to unpack and repack nds roms.
So, this is NDSFactory. With this tool you can unpack every sections of nds roms (but be aware that roms with OVERLAYS aren't supported right now!!!) and then repack them back (after editing them if you want).
Using this tool, you can set custom address and size of your edited sections and then it will rebuild a new rom.
Be aware that some general rom layout knowlege is required before using it. For example if the fat_data.bin (the FAT files) address is different, you have to patch your fat.bin using the 3rd tab.
I'd like to post a pic, but sadly I haven't the right post counter :/
If you want to contribute, you are very welcome, there is still a lot of things to do (checks, fat contents decoding, fat rebuilding, overlay support, a nice icon, and ofc bugs to fix!)
GitHub repo: https://github.com/Luca1991/NDSFactory
Thank you, and I'll be watching this thread for any suggestions/questions
I was interested in getting code execution before the game's own NitroMain(), but my final ARM9 binary was bigger than the original one, and eventually was overlapping with the ARM7 binary.
Instead to try all the funcky ways to compress my code (that anyway is not a viable solution in most of the cases since the padding between ARM9 and ARM7 binaries is extremely small), I decided to write a tool to help me (and maybe other roms hackers/reverse engineers) to unpack and repack nds roms.
So, this is NDSFactory. With this tool you can unpack every sections of nds roms (but be aware that roms with OVERLAYS aren't supported right now!!!) and then repack them back (after editing them if you want).
Using this tool, you can set custom address and size of your edited sections and then it will rebuild a new rom.
Be aware that some general rom layout knowlege is required before using it. For example if the fat_data.bin (the FAT files) address is different, you have to patch your fat.bin using the 3rd tab.
I'd like to post a pic, but sadly I haven't the right post counter :/
If you want to contribute, you are very welcome, there is still a lot of things to do (checks, fat contents decoding, fat rebuilding, overlay support, a nice icon, and ofc bugs to fix!)
GitHub repo: https://github.com/Luca1991/NDSFactory
Thank you, and I'll be watching this thread for any suggestions/questions
Last edited by Luca91,
