Emulator Issues #12249
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X-Men Legends II: Rise of Apocalypse Unknown Opcodes at Startup
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Description
Game Name?
X-Men Legends II: Rise of Apocalypse
Game ID?
GX2E52
MD5 Hash?
b7b01496bf643bd150ce05e6a4786317
What's the problem? Describe what went wrong.
When first launching the game I get a Question window with the following information
GFX FIFO: Unknown opcode (0xff @ 0000024EB42C08A4, preprocess=false).
This means one of the following:
*The emulated GPU got desynced, disabling dual core can help
*Command stream corrupted by some spurious memory bug
*This really is an unknown opcode (unlikely)
*Some other sort of bug
Further errors will now be sent to the Video Backend log and
Dolphin will now crash or hang, Enjoy.
What steps will reproduce the problem?
launch the game using any Video Backend
Is the issue present in the latest development version? For future reference, please also write down the version number of the latest development version.
Yes, 5.0-12546
Is the issue present in the latest stable version?
No
Can't use bisection tool as the thread says it's broken.
What are your PC specifications? (CPU, GPU, Operating System, more)
i5-7600 @ 3.80 GHz
GTX 1060
16GB RAM
Windows 10
Is there anything else that can help developers narrow down the issue? (e.g. logs, screenshots,
configuration files, savefiles, savestates)
Files
Updated by 
Updated by 
Updated by JMC4789 over 4 years ago
Just hit okay to both popups and the game will boot as per normal. This is a GPU emulation bug on startup that afflicts quite a few games.
Updated by JMC4789 over 4 years ago
- Status changed from New to Accepted
So, this is "GPU timing" issues to the point where I want to combine it with the dualcore timing issues, but this one technically happens in single core like F-Zero GX and Super Monkey Ball. So I don't know. It'll get fixed if someone fixes our GPU timings.
Updated by JMC4789 over 3 years ago
- Subject changed from X-Men Legends II: Rise of Apocalypse crash at startup to X-Men Legends II: Rise of Apocalypse Unknown Opcodes at Startup
Updated by ZephyrSurfer over 3 years ago
I tracked down multiple games with this issue to the same build.
5.0-10179 -> https://dolphin-emu.org/download/dev/e66d25312ea1b0c09140fce8d29fe1744ba71ce4/
Affects X-Men(single/dual core) & X-Men Legends II(single/dual core) & Bass Pro Shops: The Hunt - Trophy Showdown(single) etc.
Only seems to be an issue on the first frame of the games when they boot perhaps.