System RPL Files: Difference between revisions

Revision as of 11:35, 19 February 2024

Description

RPL files are system libraries, utility libraries and drivers that are used by the Wii U's OS and applications/software. They are similar to .dll files on Windows. The system rpl files are located inside a separate storage chip inside a Wii U called: SLC.

Dumping

Using Ftpiiu

Ftpiiu is a program that hosts a FTP server from a Wii U. It allows an external PC to upload, copy and delete files from the proprietary filesystem on Wii U remotely. Additional software may be required to use FTP server features on a PC.

The system RPLs files are located in this path inside a Wii U:

storage_slc/sys/title/00050010/1000400a/code

You can find other copies of those files in separate folders in the Wii U SLC, but they are just backups or old versions of the system that my not be compatible with all software titles.

Using a Nand dump

The alternative, and more complicated, method is to use nanddumper to dump the SLC nand and then decrypt and extract the files from it via wfs-extract.

Loading

Cemu normally emulates the system RPLs in high level. To force Cemu to load a system rpl file instead of emulating it, place the file directly in a folder named cafeLibs inside your Cemu folder. Do not copy all the .rpl files because many of them will cause Cemu to crash.

Make sure "Load Shared Libraries" is set in the game profile. Some older profiles erroneously disabled these, and the disabled state carries over to the custom profile file.

Tested files

These below are the files tested and known to work. Other files probably will just lead to games crashing on boot.

filename	usage	size in bytes	cemu version
`drmapp.rpl`	Digital rights management. Checks if the app that is being launched it legit in the Wii U Menu (Title data required)	603,968	?
`erreula.rpl`	Error System Applet (Title data required)	790,080	?
`nn_ec.rpl`	Nintendo Network E-Commerce library	176,128	?
`nn_fp.rpl`	Friend list service library.	21,824	2.0-57+
`nn_olv.rpl`	Olive (Miiverse) library (Title data required).	131,072	?
`nn_sl.rpl`	Title management for Wii U Menu	403,904	?
`nsyskbd.rpl`	Keyboard driver for software keyboard	20,416	?
`snd_user.rpl`	Extended sound effects for Sound driver	84,032	1.11.5+
`snduser2.rpl`	Updated extended sound effects for Sound driver	111,360	1.11.5+
`swkbd.rpl`	Software keyboard (Title data required)	1,116,288	?

The keyboard files make name entry work in Pokkén Tournament.
Monster Hunter 3 Tri G(JP) requires snd_user.rpl, swkbd.rpl, nsyskbd.rpl and nn_sl.rpl to boot
The swkbd.rpl being present will crash Cemu if the corresponding Title files for the Software Keyboard are not present in mlc01\sys\title\0005001b\1004F000
The erreula.rpl being present will crash Cemu if the corresponding Title files for the ErrEula are not present in mlc01\sys\title\0005001b\10051000
The nn_ec.rpl is required to successfully start Lego Dimensions when erreula.rpl is present. nn_ec.rpl may have compatibility issues in a small amount of games that use it, such as Minecraft: Wii U Edition.
The drmapp.rpl and nn_sl.rpl system libraries allows Cemu to title switch from the Wii U Menu.
The nn_olv.rpl library fixes a crash in the Miiverse applet, as well as allowing a connection to the Miiverse servers in games that use it, however this just results in an error code since the service is discontinued. nn_olv.rpl may have compatibility issues in a small amount of software. This library is broken in offline mode. If the proper files are not pressent in the MLC folder then this library will not work correctly.

@@ Line 1: / Line 1: @@
 == Description ==
-RPL files are utility libraries and drivers that can be used by Wii U applications. They are similar to .dll files on Windows.
+RPL files are system libraries, utility libraries and drivers that are used by the Wii U's OS and applications/software. They are similar to .dll files on Windows. The system rpl files are located inside a separate storage chip inside a Wii U called: SLC.
 == Dumping ==
-The correct path to system RPLs inside Wii U is:
+=== Using Ftpiiu ===
+Ftpiiu is a program that hosts a FTP server from a Wii U. It allows an external PC to upload, copy and delete files from the proprietary filesystem on Wii U remotely.
+Additional software may be required to use FTP server features on a PC.
+The system RPLs files are located in this path inside a Wii U:
   storage_slc/sys/title/00050010/1000400a/code
-You can find other copies of those files in the Wii U but they are just backups or old versions of the system.
+You can find other copies of those files in separate folders in the Wii U SLC, but they are just backups or old versions of the system that my not be compatible with all software titles.
-You can use '''ftpiiu everywhere''' to dump the files you want from your Wii U. The alternative, and more complicated, method is to use nanddumper to dump SLC and then decrypt and extract the files from it via [https://github.com/koolkdev/wfs-tools wfs-extract].
+=== Using a Nand dump ===
+The alternative, and more complicated, method is to use nanddumper to dump the SLC nand and then decrypt and extract the files from it via [https://github.com/koolkdev/wfs-tools wfs-extract].
 == Loading ==
@@ Line 50: / Line 55: @@
 * The keyboard files make name entry work in [[Pokkén Tournament]].
-* The first 5 files listed are required to boot Monster Hunter 3 Tri G(JP)
+* Monster Hunter 3 Tri G(JP) requires <code>snd_user.rpl</code>, <code>swkbd.rpl</code>, <code>nsyskbd.rpl</code> and <code>nn_sl.rpl</code> to boot
 * The '''swkbd.rpl''' being present will crash Cemu if the corresponding Title files for the Software Keyboard are not present in mlc01\sys\title\0005001b\1004F000
 * The '''erreula.rpl''' being present will crash Cemu if the corresponding Title files for the ErrEula are not present in mlc01\sys\title\0005001b\10051000