Pastel, Broadcasts, Grace; I build games, make apps, and hack things. Husband. https://www.patreon.com/steventroughtonsmith … 
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Looks like the iMac Pro's ARM coprocessor is arm64 
Seems to handle the macOS boot & security process, as expected; iMac Pro lets Apple experiment with tighter control without the rest of the userbase freaking out. More info & download here: http://newosxbook.com/articles/BridgeOS.html …
This looks like the iMac Pro's coprocessor (Bridge2,1) will be an A10 Fusion chip with 512MB RAM So first Mac with an A-series chip
If I had to guess, I would say that the A10 in the iMac Pro could be capable of always-on 'Hey Siri'. In theory. The ramdisk is plugged into audio, and the A10 supports it
Unlike the Touch Bar, the A10 in the iMac might always be running, even when macOS is shut down?
Fun part: looks like the A10 in the iMac Pro is what boots up the x86 and passes it an EFI firmware to load. One could say that the x86 is the coprocessor, and the A10 is in control… 
"The x86 is not in shutdown or below. The operation's not permitted." Seems safe to assume this A10 is in charge pic.twitter.com/A3tqNOM7aY
that's a lot for essentially a secure enclave. I wonder if they'll try to get faceID in the imac pro?
they could if they use the security chipset on Vega that would let them hide the neural engine data from the main os.
In theory, could you leverage this to run the Xcode simulator natively?
eh. Only in theory. That separation between macOS and the coprocessor is what maintains security. Goes away if you can run arbitrary code on it
So how close are we until running a simulator not that “simulated” Embedded into the A-chip
Well the iMac Pro's Intel CPUs do not include an integrated GPU, therefore no hardware HEVC - A10 has full hardware HEVC support for 10-bit decode and 8-bit encode. Much needed for FCPX etc.
CC: @_inside
and so does Vega Pro? https://pro.radeon.com/en/product/radeon-vega-frontier-edition/ … (though it might be limited when it comes to 5k +)
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