windows: detect and warn if running x64 dolphin on arm64

[shuffle2]

this came up in conversation on irc.

[delroth]

@dolphin-emu-bot rebuild

[PEmu2]

Are there any plans to offer ARM native builds for Windows? If ARM Windows builds aren't being tested or made available for download I'm not sure if this warning will be beneficial for users.

[Rumi-Larry]

Are there any plans to offer ARM native builds for Windows? If ARM Windows builds aren't being tested or made available for download I'm not sure if this warning will be beneficial for users.

I think that is already possible.

[JosJuice]

I think that is already possible.

We're talking about us building them for users, not just about building them being possible.

[shuffle2]

dolphin-emu/sadm#124

[Rumi-Larry]

I think that is already possible.

We're talking about us building them for users, not just about building them being possible.

Ahh, I thought users could already build ARM on Windows

[shuffle2]

The infrastructure is now fully handling arm64/windows stuff, so there aren't those type of missing prereqs for this PR anymore.
Any comments about this PR itself (move to different location / better wording / etc) ?

[delroth]

Nitpicking: instead of being in the JIT, should this be in https://github.com/dolphin-emu/dolphin/blob/master/Source/Core/Common/x64CPUDetect.cpp instead? Seems to me like a more logical location.

If you disagree I'm fine with merging this as is, just wanted to make sure you considered that option.

[shuffle2]

Nitpicking: instead of being in the JIT, should this be in https://github.com/dolphin-emu/dolphin/blob/master/Source/Core/Common/x64CPUDetect.cpp instead? Seems to me like a more logical location.

If you disagree I'm fine with merging this as is, just wanted to make sure you considered that option.

Good point, didn't think of that.