I feel like binary translation is a better approach. It’s a temporary workaround that allows users to use non-native programs while they are ported properly. ARM64EC seems like it will incentivize “eh that’s good enough” partial porting efforts that will never result in a full port, while making the whole system more complicated, with a larger attack surface (binary translation also makes the system more complicated, but it seems more isolated/less integrated with the rest of OS).
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I feel like binary translation is a better approach. It’s a temporary workaround that allows users to use non-native programs while they are ported properly. ARM64EC seems like it will incentivize “eh that’s good enough” partial porting efforts that will never result in a full port, while making the whole system more complicated, with a larger attack surface (binary translation also makes the system more complicated, but it seems more isolated/less integrated with the rest of OS).
My understanding is that ARM64EC only makes sense in terms of binary translation. That is, the x64 bits get translated and the ARM bits don’t.