Jeremy Fox <[email protected]> wrote:
> Mac OS X is currently a 32-bit OS no matter which processor it is
> running on. This has been hashed out on various forums. See the
> archives of Apple's scitech mailing list, or any of several OSNews
> articles on the subject. I will not reply to anyone who wants to argue
> the point here. I have a dual G5 running Panther.
No argument here. However, there was speculation that OS X would receive
minimal 64-bit support (64-bit address space) upon the release of Panther and
that complete 64-bit support (file systems, etc.) would not happen until much
later. I've seen no evidence this has happened but from Apple's website
(http://www.apple.com/macosx/developertools/):
Power Mac G5
------------
"Use XCode to develop next-generation 64-bit applications. Use a Power Mac G5
to compile 64-bit applications faster. XCode features gcc 3.3, and distributed
builds over Rendezvous."
So what do they mean by "64-bit application"? The documentation I've seen for
gcc 3.3 adds G5 optimization and some wide data type (forgot what kind) but no
mention of 64-bit addressing. If this is what they mean by a 64-bit
application, then it's very misleading. I know OS X is a 32-bit OS so
Apple's definition of a 64-bit application seems to be different from my
definition of a 64-bit application. If their definition is the same, then
there is some minimal support in OS X and that's what I was trying to find
documentation on.
-Chinh Nguyen
[email protected]
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