I found this but some needed links are removed
1) Open this google drive link:
(REMOVED, make your own WiiSXR and Wii64 injects with the Wii VC inject script. I can't help since its considered copyright)
2) Download "
(WiiU Gamepad) Wii64.rar", and "
(WIIU Gamepad) Wiisxr.rar"
3) On your SD card, make a folder called
install. Extract the folders within the Wii64 and Wiisxr rar files into the install folder
4) Download
Sign_c2w_patcher
5) Open the zip file and drag the wiiu folder to your SD card (merge it with your own if you already have one)
6) Download the latest release of
Wii64 (Fix94's port of mupen64):
https://github.com/FIX94/mupen64gc-fix94/releases
7) Download the latest release of
Wiisxr:
https://github.com/Mystro256/wiisxr/releases
8) Extract the
folders from the Wii64 and Wiisxr zips to the root of your SD card, except the Readme file (There are two folders within each zip file that you need)
9) On your Wii U, run CFW such as HaxchiFW or Mocha. Then run
WUP Installer GX2 and install
Wii64 and
Wiisxr(Install to
System Storage ONLY! Don't install to USB)
10) Run
Sign_c2w_patcher from Homebrew Launcher. It will reboot to the home menu with CFW enabled (This is needed to overclock vWii to get a performance boost for the emulators)
11) Run
Wii64 or
Wiisxr, it will ask if you want to use the gamepad as a controller, choose yes.
If your TV is turned off or the HDMI isn't connected, it will also ask if you only want to display on the gamepad. It will reboot into vWii mode then launch Wii64/wiisxr.
Note: You always need to run
Sign_c2w_patcher before launching Wii64 or Wiisxr, else you'll get
Error Code 99-9999 and forced to shutdown. You also won't get the overclocked CPU speeds needed for the performance boost.
https://gbatemp.net/threads/tutoria...e-ps1-n64-games-from-the-wiiu-gamepad.489122/
I think it was before CBHC because it was in 2017 so if you have CBHC it would take care of the sig patches (I think?), and of course you could ignore the Wiisxr steps unless you want PS1 games too. This may not even be the easiest or latest way to do it it's just all I could find. Not easy to find even Googling it.
Here's the compatibility list
https://wiki.gbatemp.net/wiki/Wii64_Compatibility_List