[Pythonmac-SIG] 64-bit code

[Ronald Oussoren]

On 17 Jun, 2007, at 20:06, Kevin Walzer wrote:

> Ronald Oussoren wrote:
>
>> As was mentioned in the keynote, Leopard will by 4-way universal  
>> throughout except for some exceptions. This means that 32-bit  
>> builds for applications will run on all Leopard machines, there  
>> are no seperate Leopard builds for 32-bit and 64-bit machines.  
>> This in turn means you don't have to provide a 64-bit build unless  
>> you want to, which would most likely be because you can make use  
>> of the additional resources that a 64-bit build brings (both a  
>> larger addressspace and on Intel more registers).
>
> OK, I guess this means that 32-bit isn't going away any time soon.  
> The Carbon-dev list seems to think that this announcement means  
> Carbon is going the way of Classic. At least some of the people on  
> that list say that they will drop Mac support rather than port to  
> Cocoa, because they need 64-bit. That's not directly germane to my  
> concerns, as I don't think I need 64-bit for what I do. If I port  
> to Cocoa, I want it to be my choice, not one coerced by Apple,   
> i.e., not supporting anything but Cocoa.

I'm not very interested in Carbon and have therefore not paid a lot  
of attention to this, but anyone that has a pressing need for 64-bit  
Carbon should at least file bugreport at Apple and preferably one  
that includes a bussiness case.

>
> Tk/Tkinter, my current GUI toolkit of choice, builds on Carbon and  
> in fact has in recent months undergone a huge amount of  
> modernization to bring it in line with modern Carbon standards (no  
> more QuickDraw, support for ATUSI, etc.). I haven't pushed my  
> applications to the latest versions of the Tk frameworks, but will  
> be doing so soon.
>
> I still can't believe that Carbon won't be 64-bit eventually...does  
> anyone really expect Adobe to port Photoshop or Microsoft to port  
> Office to Objective-C?

32-bit programs run just fine on an 64-bit system, unlike a certain  
OS from the northern part of the US (AFAIK). Photoshop should be a  
program that can make use of the additional memory space that you're  
getting in a 64-bit build.

Ronald
>
> -- 
> Kevin Walzer
> Code by Kevin
> http://www.codebykevin.com

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