From the announcement made on November 10th, 2020, users have had high hopes for the new Apple M1 devices. With its powerful Apple Silicon processor smashing benchmarks all over the place, users and developers were both asking if a native Dolphin build would be possible. Now we have the answer.

The team behind the Dolphin emulator has developed a native version for Apple’s M1 Macs. Expect major performance gains over Intel-based Macbook Pro models and Dolphin under Rosetta.

Apple's M1 hardware is incredibly powerful and excels at running Dolphin. This announcement has been in the works for some time, eagle eyed users may have noticed that earlier this month macOS builds were now being designated as 'Intel'. That's because delroth and Skyler had set up a new buildbot using a service called MacStadium for creating Universal macOS binaries. These builds are available immediately and natively support both macOS M1 and Intel macOS devices.

Installing Flutter for iOS and Android on M1 Macbook December 25, 2020 The ultimate Mac M1 Terminal (iTerm2 + Oh My Zsh + zsh-syntax-highlighting ) December 24, 2020 Running TensorFlow 2.x GPU on Docker and GCP September 24, 2020.
If you have an M1 and find any issues with Visual Studio for Mac please report a problem on the Developer Community. Hopefully you found this pretty interesting if you are in the market for an M1 or have just been struggling to figure out this new landscape of ARM64 recompiled apps.
Once downloaded, follow the instructions below to get iPhone and iPad games on your Mac systems. First things first! Connect your iPhone or iPad to your Mac by using a lightning cable. With your iPhone or iPad connected, next, launch the QuickTime Player on Mac.
Status of the PS2 Emulator on Mac with the M1 Chip Since Apple’s new silicon chip is still relatively new, the compatibility of PCSX2 on M1 chips is still a hit or miss. The good news is that users across the PCSX2 forums have been sharing their experiences running games using PS2 emulator on Mac natively.

Tackling macOS on ARM¶

It is an understatement to say that Apple dropped a bomb on the PC industry with the M1 ARM processor. ARM is a Reduced Instruction Set Computing (RISC) architecture that was specifically designed for efficiency with portable devices. With a tight instruction set instead of the ever ballooning mess that is x86, ARM was able to get away with literally less processor while performing optimized tasks, giving it exceptional power efficiency. However given unoptimized workloads, an ARM processor would need many more cycles to perform it than an x86 CPU. All combined, ARM was the processor of choice for battery life in portable devices, but when pushed they had poor overall performance compared to Intel's x86 processors. It was a processor for casual things like phones, and not really meant for 'real work'. But that is the past.

Intel's iron grip of process superiority has long slipped, and the ARM instruction set has carefully expanded to more efficiently handle more tasks while not sacrificing power efficiency. Yet even with ARM reaching datacenters and even some interesting hardware giving us a glimpse at what could be, ARM's reputation as being weaker than x86 has remained firmly entrenched.

But with M1, Apple has completely shattered this foolish notion. Not only can the M1 perform the same tasks as their former Intel processors, they can do it faster even when using their Rosetta 2 translation layer! All of this while still providing considerably better single threaded performance compared to Intel. Let's just say they had gotten our attention.

We immediately put it through its paces. Using the Rosetta 2 translation layer with Dolphin's x86-64 JIT, the M1 easily ran most games at full speed and handily outran like-class Intel Macs. The experience wasn't entirely smooth due to jitter from Jitting a JIT, yet the processor proved itself more than capable of handling Dolphin. But the fact it had to do it through a translation layer was a huge performance bottleneck. Developers thought, why not just use Dolphin's AArch64 JIT for native support? And thus, the race was on as several people tried to figure out the hurdles of getting Dolphin's AArch64 JIT to run on the M1.

Unfortunately, getting the AArch64 JIT to work wasn't exactly trivial. Apple requires W^X (Write Xor Execute) conformance for native macOS M1 applications. What it does is make it so that areas of memory must be explicitly marked as for WriteorExecute, but not both! Because it's easier and hasn't been forbidden on any of the prior platforms that Dolphin supports, the emulator previously just marked memory regions used by the JIT as for WriteandExecute. This requirement from Apple is mostly a security feature to prevent bugs in programs that read untrusted data from being exploited to run malware. Outside of emulators, the primary place that you'll actually see self-modifying code is web browsers, which is often a vector for attack on a computer.

This was thankfully a lot less strict than on iOS devices, which strictly forbid mapping memory as executable whatsoever and made iOS untenable for us to officially support. Apple even provides documentation for helping developers port JITs to macOS on ARM. Skyler used a method described in the documentation that would change the mapped memory between Writeable when emitting code to Executable when executing code. Since Dolphin wasn't designed for this, there were a few hiccups along the way, but eventually everything was massaged into working with the new restrictions.

Once that was out of the way, the focus shifted towards maintainability and setting up the infrastructure. Beyond getting it to run correctly, this was by far the hardest challenge to official M1 support. Dolphin's infrastructure is rather complicated and sensitive to changes. Moving macOS builds over to a universal binary (x86-64 and AArch64 all in one) along with getting the hardware necessary to build macOS universal binaries was a challenge and could have proven to be an expensive endeavor. In the end, MacStadium made the move extremely inexpensive by providing us with free access to M1 hardware, so we were able to focus on making Dolphin's buildbot infrastructure handle the new builds.

Putting the M1 Hardware To The Test¶

So now that it runs, you're probably wondering how does it run. There's a few things we need to keep in mind. Dolphin's AArch64 JIT isn't quite as mature as the x86-64 JIT. While things aren't as bad as they were a couple of years ago and compatibility should be roughly the same thanks to efforts from JosJuice, it is still the less complete of the two JITs.

One of the differences is instruction coverage. Any PowerPC instruction that isn't included in the JIT has to fallback to interpreter, which costs a huge performance penalty. Most common instructions are covered by both JITs at this point. There is one important feature missing in the AArch64 Jit, though: memchecks. Thankfully, this only affects Full MMU games such as Star Wars Rogue Squadron II, III, and Spider-Man 2. There are some niceties missing from AArch64 JIT, too, like JitCache space reuse used to prevent spurious JitCache flushes.

AArch64 does have its advantages, though. Namely, the processors have 31 registers, compared to the 16 available in x86-64 processors. The PowerPC processor we are emulating has 32 registers, and while it is rare for all of them to be used within a single code block, more registers is always nice to have. Another difference is that AArch64 and PowerPC have 3 operand instructions while x86-64 only has two.

As you can see, it makes emulating some instructions much cleaner and easier than on our x86-64 JIT. Alright, enough with the boring details. How does the M1 hardware perform when put up against some of the beasts of the GameCube and Wii library? We also included data from two computers featured in Progress Reports previously for comparison.

There's no denying it; macOS M1 hardware kicks some serious ass. It absolutely obliterates a two and a half year old Intel MacBook Pro that was over three times its price all while keeping within ARM's reach of a powerful desktop computer. We were so impressed, we decided to make a second graph to express it.

The efficiency is almost literally off the chart. Compared to an absolute monstrosity of a Desktop PC, it uses less than 1/10th of the energy while providing ~65% of the performance. And the poor In

Ios Emulator For Mac M1