On Mon, Jun 14, 2004 at 08:48:05AM -0700, perdurabo wrote:
> I just ordered one of the shiny new dual PowerMac G5's that was
> announced last week. I've been reading various bits and pieces that
> Panther on a G5 "runs a 64-bit kernel". I even found a foreign
> Apple-owned site that makes mention of it. I'm unable to find the
> link, but it was one of Apple's asian sites, and it made reference to
> a "64-bit kernel". Google searches just pull up a number of
> misinformed or useless links. there's a little documentation on
> developer.apple.com, but its also not very clear.
> 
> Any of you out there with a G5 doing 64-bit coding care to make any comments?

Panther on a G5 does run a 64 bit kernel, however it is important to note
that the same Panther runs on the 32 bit G4 and the 64 bit G5.  In other
words, most of the OS is NOT 64 bit code.

Apple's done this before--when they introduced the PowerPC in the first
place, it ran a PowerPC kernel and mostly m68k OS in emulation mode.  It
then happened that over the next few years, Apple introduced more
PowerPC-only components and began shipping things that you'd notice
running slowly as diskspace-hogging fat binaries which had both native
PowerPC and m68k code in them.

A few things (photoshop for example) now have G5 binaries available but
most of the world's code does not need to be 64 bit just yet.  You're
quite welcome, and Apple would love it if you decide, to develop 64 bit G5
code.  ;)

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