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Is leopard a real 64bit OS?

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I found this to share with you guys.




From this file :


The OS X kernel is not 64 bit. It supports 64

bit user mode applications on a 64 bit PowerPC

or Intel CPU, but the kernel itself runs

in 32 bit mode and is bound to the 4 GB address

space limit.


So to answer the original post of Envying ....and he has done this himself already ....Yes,

Kernel is the core of an OS, Mach_kernel is a universal binary file using ppc & i386(not x86 64) instructions... So can I say Leopard is not a real 64bit OS!



for now...... :hysterical:


That probably explains why my vanilla install (using 10.6 retail) fails with more than 4GB

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