That being said, you may now expect games to use 2GB to 4GB of RAM on average, rather than double that! As a result, emulation should in general not exceed Switch’s 4GB of dedicated RAM, with the exception of games that eat memory for other purposes (for example, GPU, audio, and OS emulation may still push the emulator beyond this). With the new VMM implementation, we now more accurately implement and respect Switch’s memory layout. Super Mario Odyssey Fully Playable On PC With Yuzu Emulator Likely Drawing Nintendos Wrath. This could result in run-away host memory allocations that were never actually possible on a real Switch. In short, this old implementation would arbitrarily allocate and map host (your PC) memory on the fly, without respecting the guest (Nintendo Switch) memory layout. Citra’s approach has served us well in getting the emulator working, but it was really designed for a much simpler system that did not scale to the needs of Switch. Previously, yuzu used a rather simplified approach to the VMM, based on Citra 3DS Emulator.
This is a part of the emulator that uses High Level Emulation (HLE) to replicate functionality of the Switch’s "Horizon" Operating System. This will allow for real HD Rumble compatibility. Soon, german77 has plans to add native Joy-Con pairing support. Additionally, some games seem to use different ways to ask for rumble and are not supported yet.
Using a joy con in a yuzu emulator pro#
This was accomplished by rewriting yuzu’s Virtual Memory Manager (VMM), the software component that allocates, maps, and frees memory that Switch games use. This means that a Pro Controller or a pair of Joy-Cons cannot reach the same level of precision as the Switch. The latest improvement revealed only a few hours ago promises to essentially cut the emulator's RAM usage in half, thanks to a complete rewrite of yuzu's memory management code. Yuzu, the Nintendo Switch emulator on PC, continues to be developed at neckbreaking pace.