I don't know either, but why wouldn't backwards compatibility apply to aarch64? ... | Hacker News

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		umanwizard 57 days ago \| parent \| context \| favorite \| on: Why xor eax, eax? I don't know either, but why wouldn't backwards compatibility apply to aarch64? It too is based on a pre-existing 32-bit architecture.

Narishma 57 days ago [–]

I don't think it's backwards compatible the same way x86-64 is.

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