64-bit on A64 running 32-bit

[Adam Wood]

On 12 Jul 2005, at 21:58, David Rasmussen wrote:

> If I am running Windows XP or some regular 32-bit Linux  
> distribution, can I still use gcc 3.4.x to compile a 64-bit A64  
> version of my code?
>
> I have a program that uses 64-bit integers heavily, and I would  
> like it to utilize 64-bit mode in A64, even if this A64 is running  
> a 32-bit OS.
>
> Is this possible? Or is 32-bit and 64-bit entirely different  
> "modes" on A64?
>
> /David
>

They are different modes -- you need an OS that can transition to the  
64 bit modes, so that's Windows 64 bit or a 64-bit Linux  
distribution, for example.

-- 
Adam