Nintendont (decompgz/decompimizer Fork)

A fork of Nintendont with added support for decompgz and (soon) decompimizer.

What this fork adds

• Custom EXI device for settings persistence — the game can save, load, and delete tpgz settings to the SD card via DMA without going through the memory card subsystem.
• Status read-back — the kernel reports actual success/failure of SD operations back to the game, so the UI shows accurate error messages even when the SD card is missing.
• f_unlink support in kernel FatFS — lowered _FS_MINIMIZE from 2 to 0 so the kernel can properly delete files (otherwise it just wipes the files).
• EXI patching always enabled — required for the custom EXI device to intercept TPGZ traffic on memory card slot A.
• Game-callable exit to loader — exposes a DoGameExit entry point at 0x93000008 so the game mod can programmatically return to the Homebrew Channel (e.g. from a menu option) without requiring the button combo.

Building

Nintendont requires specific older devkitPro toolchain versions. Newer versions will compile but produce binaries that hang on exit (return to loader).

Required versions:

• devkitARM r53-1 (GCC 9.1.0)
• devkitPPC r35-1 (GCC 8.3.0)
• libogc 1.8.23-1

These are no longer available from the official devkitPro package repos. You can download them from the community archive at https://wii.leseratte10.de/devkitPro/:

• devkitARM r53 — -linux, -osx, or -windows variant
• devkitPPC r35 — -linux, -osx, or -windows variant
• libogc 1.8.23 — -any (platform-independent)

The .pkg.tar.xz files are just compressed tarballs containing an opt/devkitpro/ directory tree. Remove any existing devkitPro toolchains and extract:

Linux / macOS:

sudo tar xf devkitARM-r53-1-linux.pkg.tar.xz -C /
sudo tar xf devkitPPC-r35-1-linux.pkg.tar.xz -C /
sudo tar xf libogc-1.8.23-1-any.pkg.tar.xz -C /

On macOS, replace -linux with -osx in the filenames.

Windows (MSYS2):

tar xf devkitARM-r53-1-windows.pkg.tar.xz -C /
tar xf devkitPPC-r35-1-windows.pkg.tar.xz -C /
tar xf libogc-1.8.23-1-any.pkg.tar.xz -C /

Then build:

export DEVKITPRO=/opt/devkitpro
export DEVKITPPC=$DEVKITPRO/devkitPPC
export DEVKITARM=$DEVKITPRO/devkitARM
make clean && make

The output is loader/loader.dol.

TODO

• Support dynamic file paths for writing (so the game can define them instead of a hardcoded path).
  • Add more protections around file deletions to make sure we don't accidentally wipe the wrong thing after dynamic file paths are supported