Author: Robert Hyatt
Date: 17:01:10 09/24/03
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On September 24, 2003 at 18:41:59, Jeremiah Penery wrote: >On September 24, 2003 at 12:01:01, Robert Hyatt wrote: > >>On September 23, 2003 at 18:23:20, Jeremiah Penery wrote: >> >>>On September 23, 2003 at 17:27:48, Slater Wold wrote: >>> >>>>As soon as they have a 64-bit Opteron compiler (publicly available), I'll let >>>>you know. ;) >>> >>>GCC already does. >> >> >>You also need a 64 bit operating system, > >SuSE Linux has had an x86-64 version for a while. I guess there are a couple of >other now too. > > or else some assembly hacking. And >>then you have to get the compiler to produce a 64 bit code that will run on >>the 32 bit O/S. > >Huh? The opteron is an odd bird. If it isn't initialized to 64 bit mode, you can't get to the extra 64 bit registers. A user mode program can't do that easily, although I am sure it is possible with access to kernel mode and some inline assembly.
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