No JIT so performance will be limited, however, a massive step forward for sure.
this post was submitted on 14 Jul 2024
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How can it virtualize/emulate without JIT? I’m aware of what JIT is in the context of programming languages, but I’m having trouble understanding how you can virtualize something without JIT.
To convert one processor architecture to another, instead of translating it into code of the correct architecture, you can also simply perform the operation in the loop by interpreting each instruction as it is encountered.
It’s the same distinction between a JIT and An interpreter. You can convert the code in chunks which is more efficient, or you can read the instructions one at the time and perform the corresponding operation.
Apple does not allow JIT of any form from third-party developers to my knowledge.
iirc they allow it in wasm, but that's about it
Correct me if I'm wrong but I think that code still technically runs as part of the browser, which is Apple code that is specially allowed to use JIT. The third-party code itself isn't the JIT.
I have a functional version of Windows 95 on my phone now, so that’s neat. XP setup was too slow and I got impatient.
Test it out today. The limitations are apparent. Without the JIT it's noticeable on my iPad compared to my mac. I actually thought it wasn't working - turns out it was just sssuuuuppppeerrrr slow. Happy to support its development though. I'd love to be able to run my development environment on my iPad one day.