On Jul 2, 2012, at 5:34 PM, Kyle Sluder wrote: > Not necessarily. The CPU could just mask off the top 32 bits when executing > 32-bit opcodes on in-cache data. Each 32-bit value is still taking up 64 bits > of cache space. That's probably a lot easier and more efficient than making > it possible to address arbitrary 32-bit slices of cache.
No. A cache line always maps to a contiguous slice of RAM the same size as the line--to do otherwise would be an absolute nightmare of complexity. -- Scott Ribe scott_r...@elevated-dev.com http://www.elevated-dev.com/ (303) 722-0567 voice _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
