Author: Gian-Carlo Pascutto
Date: 09:20:43 09/07/03
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On September 07, 2003 at 11:47:33, Robert Hyatt wrote: >>The normal version will not run 64 bit programs. > >How can it _Prevent_ 64 bit instructions? > >It can't... > >>>When might a 64 bit version of WS 2003 be available for the Opteron system? >> >>Only Microsoft know this... >> >>>Until the Opteron has a 64 bit version of WS 2003 out ,wouldn't another OS >>>from Windows work on the Operton system? >> >>Yes, but it will not run 64 bit programs. > >Again, this is wrong. The O/S can't prevent my program from executing 64 >bit instructions if I want to, as they are not privileged instructions. The >O/S might prevent me from addressing beyond 4 gigabytes... but that's about >all it can prevent. Uh, how is your program going to work when you lose half your register file on each context switch? -- GCP
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