Intrepid compatibility with C3 CPUs

Matthew Garrett mjg59 at srcf.ucam.org
Wed Aug 20 11:14:29 UTC 2008


On Mon, Aug 18, 2008 at 07:31:48PM +0100, Sam Tygier wrote:

> It appears that the kernel now requires the 'cmov' instruction. If i 
> understand right this is a i686 instruction.

It's an optional i686 instruction. CPUs are allowed to claim i686 
support without implementing it. Unfortunately, it's also about the only 
generally useful i686 instruction, so gcc generates it if you ask it to 
build for i686.

-- 
Matthew Garrett | mjg59 at srcf.ucam.org




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