Re: 64-bit iOS
Re: 64-bit iOS
- Subject: Re: 64-bit iOS
- From: Scott Ribe <email@hidden>
- Date: Tue, 10 Sep 2013 14:21:05 -0600
On Sep 10, 2013, at 2:01 PM, Abdul Sowayan <email@hidden> wrote:
> I'm curious, why does 64-bit matter? iPhone memory is still around 1 gig and there is no virtual memory. Until you exceed the 4 gig limit, I don't see why this matters.
Fragmentation of address space & dealing with large blocks... And it's not really a 4GB limit, since there has to be a big chunk (likely 1GB) of address space reserved for the kernel.
Of course there's a vast variety of apps for which this does not matter at all. But 64-bit makes available some really powerful techniques that are impractical otherwise.
Also, wouldn't it be nice if tech writers knew anything about their subject? I got $20 right here that sez the A7 has more than 2 general-purpose registers--anybody want to take that bet ;-) (Maybe somebody doesn't know the difference between a register and a core???)
--
Scott Ribe
email@hidden
http://www.elevated-dev.com/
(303) 722-0567 voice
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