On Mon, 23 Sep 2013 08:28:06 +0300 Leon Anavi <[email protected]> said:

> Hi Daniel, Carsten, All,
> 
> On 2013-09-23 03:46, Daniel Juyung Seo wrote:
> > On Mon, Sep 23, 2013 at 8:53 AM, Carsten Haitzler
> >> imagine if all the engineers and executives etc. at bmw drove fords
> >> because
> >> "bmw's can't manage to get us to the office without breaking down".
> > 
> > Awesome analogy.
> > 
> > I am also against dropping 32 bit system support for dev tools.
> > 
> > I bet many people I know use 32 bit system yet.
> > 
> 
> The example with the cars is nice but I don't think it's very 
> appropriate. In my opinion it is fine to drop 32-bit support although I 
> still keep 32-bit distributions on some of my older computers.
> 
> Today nobody uses 16-bit OS for development of Tizen and in long term I 
> don't expect anybody to be using 32-bit. So dropping 32-bit support is 
> just a matter of time. Almost all of the CPU for personal computers 
> produced in the last 5 years are with 64-bit instruction sets. The 
> majority of developers (including me) that still have 32-bit OS on some 
> computers actually have a compatible 64-bit hardware and just have to 
> replace the OS and the dev environment with a 64-bit version.

64bit os's come with a major cost in memory footprint for pointers... it's
quite measurable. and that doesn't change the fact that:

1. arm is STILL 32bit and will be for a long time still. if tizen can't be built
ON an arm platform (which is 32bit) then it can't self-host on arm... which is
embarrassing.
2. reality is that on x86 we likely might support 32bit tizen simply due to the
memory footprint issues, and there is still x32 which is 32bit address space
WITH 64bit instructions for max perf and best footprint. if we can't work on
x32 or ix86 we can't self host. embarrassing.
3. you do know that intel mobile chips (for tablets/phones) are not 64bit
still (i thought baytrail may support 64bit in at least some configs, but
older ones... no 64bit, and baytrail devices as best i know are still not
shipping as of today)... :) again - if we can't self host on these...
embarrassing.

:)

> Best regards,
> Leon


-- 
Carsten Haitzler (The Rasterman) <[email protected]>
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