Re: Compatibility?
I would assume what this really means is 'Intel will provide ARM drivers and official support'. The only actual issue I can think of between CPU and discrete peripheral would be a 64 bit peripheral where the CPU is 32 bit and can't generate 64 bit reads/writes (or where the peripheral has > 4gigs of mappable memory that the CPU needs to talk to directly of course - GPUs maybe?). Endianness is certainly a pain but not theoretically insuperable.
Biting the hand that feeds IT
