On April 21, 2024, there was an update from Apple regarding the policies of the App Store, allowing game emulator apps to be listed.
This policy shift led to the rise of some popular emulators like the Delta emulator in the rankings overnight. However, the Dolphin emulator continues to face barriers due to these policies.
We also observed that the Dolphin development team explained in their blog that Apple’s restrictions on using JIT (Just-In-Time) compilation technology prevent its entry into the App Store.
The GameCube and Wii consoles, which the emulator aims to support, use PowerPC architecture CPUs, incompatible with the ARM architecture CPUs used in current Apple devices.
To run GameCube or Wii games on devices like the iPhone, the original PowerPC code must be translated into ARM code, which can be processed and executed by the device’s CPU.
Apple has denied Dolphin’s request to use JIT technology, likely due to security concerns. The Dolphin team also emphasized in their blog the crucial role of JIT technology in enhancing their emulator’s performance.
JIT programming, a compilation technique, enables dynamic compilation of all or part of a program at runtime to boost execution efficiency.
A JIT compiler primarily transforms frequently executed code blocks from an interpreted state to machine code, which executes directly on the CPU, reducing the overhead of interpreted execution.
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