My macOS application is built for 64-bit and arm64. Does this run on 32-bit machine. I am asking this because: macOS was 64-bit even when it was supporting 32-bit apps to run on it (<= 10.14). So, does it convert 64-bit instructions to 32-bit and thus can a user run 64-bit app on his 32-bit machine? (It might be slower though).
Thank you.
Deepa
No.
My macOS application is built for 64-bit and arm64
I presume you mean x86_64 and arm64.
Does this run on 32-bit machine.
endecotp’s answer is correct but I want to elaborate.
macOS was 64-bit even when it was supporting 32-bit apps to run on it
Right, but that’s not a great analogy. A 64-bit Intel CPU has a special mode that allows it to run 32-bit code. The reverse is not true. To run a 64-bit app on 32-bit machine macOS would have to emulate that 64-bit mode is software, which would be infeasibly slow.
Keep in mind that the last version of macOS that ran on 32-bit machines was 10.6. macOS 10.7 and later only work on 64-bit machines.
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