Are you tired of seeing that semi-reversed LauncherTemplate.dat in every single project that launches a payload in ARM9 via spider (Nintendo 3DS Web Browser)?
Well, I sure am.
This was originally made for CakesFW, but I've separated it for the ease of use for other projects.
In most cases it can be a drop-in replacement for the hideous LauncherTemplate.dat.
You copy this into your project directory, and add a few lines into your Makefile:
make dir_out=out name=Launcher.dat -C CakeHax launcher
dd if=mypayload.bin of=out/Launcher.dat bs=512 seek=144
clean:
make dir_out=out name=Launcher.dat -C CakeHax cleanPretty simple, right?
Well, you can always configure it to fit exactly your needs.
CakeHax by default has a size limit for payloads. This is because entry points have size restrictions.
To get around this problem, CakeHax comes with a small-ish (a bit more than 7KB) payload, that loads a bigger payload from the SD card.
To use this feature, replace launcher with bigpayload when calling the makefile, and use dd with a seek of 160.
Please note that some changes will be made to your environment (see this and this).
This environment is mostly identical to the LauncherTemplate.dat's environment.
The makefile of CakeHax has some options for your convenience:
| Name | Default | Description |
|---|---|---|
| dir_out | . | Where the to-be-injected .dat file will be placed (and removed when doing clean!) |
| name | Cakes.dat | The name of the .dat file. (NOTE: This can't be renamed after it is built, or it won't work.) |
| filepath | / | Path in the SD card where the .dat file will be located and loaded from the ROP |