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- #What does xenia emulator progress report say full
- #What does xenia emulator progress report say android
- #What does xenia emulator progress report say code
Considering these were Factor 5 games, you can bet some shenanigans were involved.įactor 5 is the defacto badass of GameCube developers. delroth reverse engineered the problem and documented what needed to be done, but it was a non-trivial amount of work.Įnter Citra audio guru MerryMage to implement the features outlined in order to finally fix HLE audio for these two titles. This is actually one of those situations where we've known what was wrong, but had no one to actually implement the fix. While this may not have been a big deal when most titles required LLE audio for proper sound, it now sticks out like a sore thumb when they stand alone. Rogue Leader and Rebel Strike are among the last games that sound very wrong with HLE audio set, forcing users to take a stark performance hit by using LLE audio. HLE Audio has been so good for years now, that the remaining problems stick out like a sore thumb. Some background: Dolphin's HLE audio has been completely rewritten since Dolphin 3.0 it's one of those miraculous transformations that we really tend to forget about.
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I guess we should actually explain how this fixes it. Someone finally took the potato chips away from the microphone. This fixes HLE audio in Rogue Squadron 2 and 3. Now we go from a gigantic change that should affect nothing in practice to a small change that'll make a huge difference for two very particular games.
#What does xenia emulator progress report say android
Considering that the x86-64 JIT is still much more mature than the AArch64 JIT, it is likely x86-64 Android devices will have higher compatibility and less bugs for the near future.ĥ.0-3260 - AX: Implement loop_counter and support UCodes without LPF by delroth and MerryMage ¶ Thankfully, by doing the process instruction by instruction, we were able to keep close tabs on performance and make sure there were no large performance decreases.Īs mentioned above, x86-64 Android should now be able to run Dolphin's JIT. The hardest part about doing this isn't the task itself it's completing the task without losing performance. What MerryMage's did was go through the JIT and find the individual instructions that used addressing methods incompatible with PIC, and then revise them in a manner that'd allow them to work.
#What does xenia emulator progress report say code
This is because some operating systems, such as Android and Hardened Linux, randomize the ram layout as a security feature meaning that code can end up more than 2GB away! The AArch64 JIT was designed with this situation in mind and as such can handle the code being anywhere! However, x86_64 Android devices were stuck with cached interpreter at best because the x86_64 JIT didn't have PIC support. Code was guaranteed to be within 2GB (the maximum amount of ram a 32-bit program can use), and thus the JIT relied on methods within those limitations, even when making the jump to 64-bit! Because the x86 JIT was designed in the 32-bit era, Dolphin used the access methods available at the time. The JIT supporting PIC means that no matter where the code is compared to the rest of the executable, it will be able to access it. In fact, if everything is working correctly, there should be no noticeable change in Dolphin from the many changes to make Dolphin's JIT Position independent compliant. This is a big change that opens up a lot of uses for Dolphin that may not be very obvious. Position Independent Code support for the x86-64 JIT by MerryMage ¶ Custom texture support gets supercharged, the JIT sees some important maintainability changes, and a smattering of audio changes include a huge presentation change to audio that will help users hear games pleasantly even under slowdown.
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While synchronous audio was undoubtedly better for the project and solved the major emulation issues with audio, it caused a whole bunch of presentation issues we neglected to fix. Long-term, we did learn something from this dilemma.
#What does xenia emulator progress report say full
After all, it doesn't make sense for audio to run full speed if nothing else is! The issues were closed and the concern was filed away until users got used to the change. Some of the criticisms were valid there were bugs in early synchronous audio causing increased latency that weren't present in asynchronous audio.Īll of these growing pains were eventually fixed, but, one complaint stood out - slowdown affected audio for the first time for a majority of users. When Dolphin replaced the hacky, broken asynchronous audio with the synchronous New AX-HLE and New Zelda-HLE implementations, audio accuracy greatly increased! It came as quite the shock when users started complaining about this change and demanding asynchronous audio's return. One of the more difficult parts of being an emulator is balancing accuracy, performance and presentation.