Emulator

Can you bisect to an exact build?

JMC4789 wrote in #note-1:

Can you bisect to an exact build?

Sure, but I do not know the process for bisecting, so someone will have to explain it to me.

Essentially, you know 16101 works, and 18995 is broken. So you go to a build roughly halfway between that and test. If it is broken, you now have 16101 and 17xxx as the range. If it works, you now have 17xxx to 18995 as the range. Then you just repeat until you find the exact broken build.

Okay, I'll try that.

The issue has something to do with the JIT Recompiler not being compiled properly. If Dolphin is switched to Cached Interpreter, Beach Spikers and some other games run perfectly fine. When I compile Dolphin using cmake commands normally, the JIT Recompiler does not work properly. When I compile Dolphin using xbps-src, which has scripts for compiling, then the JIT Recompiler works perfectly, even though the installed libraries should be the same. I am not certain why it is like this. I tried setting some flags for cmake compilation and it did not fix the issue in any way. A side note, while bisecting I noticed older revisions have better performance in some games.

I tried disabling and enabling FPRF but nothing changed. Rogue Squadron II and Rebel Strike also spew errors on launching. I tried disabling AVX2 flags and some other instructions when compiling since my processor does not have those, but it did not help. I may have done it wrong or missed something. Like I said, it works perfectly when using xbps-src to compile Dolphin, but when I compile it plainly with cmake .. && make -j$(nproc), I get the game breaking issues with Beach Spikers and the Star Wars games.

It seems like MMU and FPRF are not functional in my plain builds.