Emulator Issues #10791

libogc ucodes aren't implemented in DSPHLE

Added by ryanebola16 over 2 years ago. Updated 4 months ago.

% Done:


Operating system:
Issue type:
Feature request
Relates to usability:
Relates to performance:
Relates to maintainability:
Regression start:
Fixed in:


Game Name?

Project M Launcher (attached)

What's the problem? Describe what went wrong.

Freezes upon playing game. Doesn't occur with DSP LLE.

What steps will reproduce the problem?

  1. Launch Project M Launcher with DSP HLE
  2. Press "Play"
  3. Observe freeze. See attached log. Probably has something to do with the "Unknown mail sent to AX::HandleMail"

Is the issue present in the latest development version? For future reference, please also write down the version number of the latest development version.


What are your PC specifications? (CPU, GPU, Operating System, more)

Samsung Galaxy Note8 (SM-N950U)
Qualcomm Snapdragon 835
Octa-core (4x2.35 GHz Kryo & 4x1.9 GHz Kryo)
Adreno 540
Baseband version N950USQS2BQK2
Kernel version 4.4.21
Android 7.1.1


Win 10 Pro x64
Intel Core i7-4702MQ CPU @2.20GHz
GeForce GT 750M
GeForce Game Ready Driver 390.65

Is there anything else that can help developers narrow down the issue? (e.g. logs, screenshots,
configuration files, savefiles, savestates)

Project M Launcher can be used to load most Gecko OS compatible Brawl mods too.

For Android Gecko OS can run Brawl mods at about 11 FPS due to needing the cached interpreter (see #10786).
Project M Launcher + LLE gets the FPS in the upper 30's!

dolphin.log (72.1 KB) dolphin.log ryanebola16, 01/12/2018 05:22 PM
PML.rar (1.97 MB) PML.rar ryanebola16, 01/12/2018 05:22 PM


#1 Updated by ryanebola16 over 2 years ago

Placing a reminder here for me to move ...\Dolphin Emulator\GameSettings\00000000.ini when testing fixes for this since I made it force DSPHLE = False

#2 Updated by leoetlino over 2 years ago

  • Issue type changed from Bug to Feature request
  • Priority changed from Normal to Low
  • Status changed from New to Accepted
  • Subject changed from Project M Launcher freeze to libogc ucodes aren't implemented in DSPHLE

#3 Updated by ryanebola16 over 2 years ago

Could we remove the low priority status? A lot of people use the Project M Launcher for loading codes, Android doesn't have code editing in the UI, and Gecko OS has even worse problems.

#4 Updated by leoetlino over 2 years ago

It's been a known issue since 2015 and this is the first feature request about it AFAIK. Based on that, I'd say this is low priority, at least for the developers.

#5 Updated by ryanebola16 4 months ago

  • Priority changed from Low to Normal

Now that I'm a developer who's interested in getting this implemented I can make it not low priority! No idea if this is difficult though.
Can someone tell me where ucodes can be found in Dolphin and then I can read up on them? If someone also knows where to find the ucodes to implement within libogc that will be helpful too.

#6 Updated by JMC4789 4 months ago

Your best bet would be hopping onto our IRC channels and asking questions.

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