nullDC4Wii

niuus · Friday at 2:59 PM

Xale007 said:
or maybe I could accept only CHD from the compression that do work

That would be enough.

Xale007 said:
I just did it and released alpha 0.66 that should fix USB support, please test !

https://github.com/BenoitAdam/nullDC4Wii/releases/tag/alpha0.66

This is working as it should, thanks for the fix.

Xale007 · Friday at 3:58 PM

alpha 0.67 is out !

Please test 2 player/4 player mode if you can and report on the wiki !

https://github.com/BenoitAdam/nullDC4Wii/releases/tag/alpha0.67

Xale007 · 2026-09-07T01:44:32+0100

new version

https://github.com/BenoitAdam/nullDC4Wii/releases/tag/alpha0.68

Sogun · 2026-09-08T00:27:47+0100

Hello @Xale007 . Unbelievable work. Dreamcast emulation on Wii sounded like a dumb idea, but with the constant releases and improvements you have done it seems plausable to have lots of playable games from the last SEGA console.

I was testing some of your buids, but it's hard to keep track of everything new for the Wii. I can't help with the compatibility for now, sorry . But I want you yo know one issue I'm having with the latest releases.

I'm using a PAL Wii from launch day (seems that is a little special with memory). I load the app from the HomeBrew Channel from the SD card. I would like to have the games in the USB drive since I'm running out of space in the SD card. The USB drive is an external 2.5" Western Digital 4 TB hard drive formated as MBR partition, FAT32 with 32k clusters (Allocation Unit Size: 32768), and set as ACTIVE & PRIMARY.

In release 0.64 I was able to load the app and run games from the USB. GDI images with the .bin and .raw are stored in root://dreamcast
From release 0.65 and upwards I can select games from the USB but they don't load at all. I can't even run the bios. After a few seconds of black screen I'm sent to the Wii's health advice screen.
Also from release 0.65 and upwards, if I try to run a game from the SD card I'm sent back to the homebrew channel before even running the bios. I have to unplug the USB and then I can run games from the SD card.
I get no code dump screen or errors. The emulator just redirects me in those cases. As I said, build 0.64 was working perfectly. I tried up until 0.695 which I saw in Github.

I had a similar issue with ioQuake. I was getting a "not enough memory" message when trying to start a match when the USB was plugged (even if everything was stored in the SD card). @Mayo1990 was able to fix it. He said to me that: "The issue was because the mounted (although unused) device would take memory off the console."

Vetus_Mundi · 2026-09-08T00:51:14+0100

Does the Wii U Pro controller work on the vWii with this port?

Xale007 · 2026-09-08T01:53:56+0100

Sogun said:
Hello @Xale007 . Unbelievable work. Dreamcast emulation on Wii sounded like a dumb idea, but with the constant releases and improvements you have done it seems plausable to have lots of playable games from the last SEGA console.

I was testing some of your buids, but it's hard to keep track of everything new for the Wii. I can't help with the compatibility for now, sorry . But I want you yo know one issue I'm having with the latest releases.

I'm using a PAL Wii from launch day (seems that is a little special with memory). I load the app from the HomeBrew Channel from the SD card. I would like to have the games in the USB drive since I'm running out of space in the SD card. The USB drive is an external 2.5" Western Digital 4 TB hard drive formated as MBR partition, FAT32 with 32k clusters (Allocation Unit Size: 32768), and set as ACTIVE & PRIMARY.

In release 0.64 I was able to load the app and run games from the USB. GDI images with the .bin and .raw are stored in root://dreamcast
From release 0.65 and upwards I can select games from the USB but they don't load at all. I can't even run the bios. After a few seconds of black screen I'm sent to the Wii's health advice screen.
Also from release 0.65 and upwards, if I try to run a game from the SD card I'm sent back to the homebrew channel before even running the bios. I have to unplug the USB and then I can run games from the SD card.
I get no code dump screen or errors. The emulator just redirects me in those cases. As I said, build 0.64 was working perfectly. I tried up until 0.695 which I saw in Github.

I had a similar issue with ioQuake. I was getting a "not enough memory" message when trying to start a match when the USB was plugged (even if everything was stored in the SD card). @Mayo1990 was able to fix it. He said to me that: "The issue was because the mounted (although unused) device would take memory off the console."

thanks for your report

I have to compile you some versions for you to test and see where the regression is. Looking at the changelog, nothing coincide except the Wii U preset

Are you absolutely sure 0.65 is the one that got buggy ? Reading the changelog it's more likely to be 0.66 where I touch some stuff regarding usb.

Can you please open a github issue for this ? and join the discord so I can give you the builds ?

By the way alpha70 is out

https://github.com/BenoitAdam/nullDC4Wii/releases/tag/alpha0.70

niuus · 2026-09-08T03:26:32+0100

Xale007 said:
thanks for your report

I have to compile you some versions for you to test and see where the regression is. Looking at the changelog, nothing coincide except the Wii U preset

Are you absolutely sure 0.65 is the one that got buggy ? Reading the changelog it's more likely to be 0.66 where I touch some stuff regarding usb.

Can you please open a github issue for this ? and join the discord so I can give you the builds ?

By the way alpha70 is out

https://github.com/BenoitAdam/nullDC4Wii/releases/tag/alpha0.70

Dynarec improvements! I'll be checking this 0.70 some minutes before sleeping.

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