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#1
February 7th 09, 09:22 PM
posted to comp.sys.intel
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About CPUID, why is it serialization instruction?
Hello everyone!
I wondered why cpuid was serialization instruction like RSM and many other. Indeed, I don't understand why it requires previouses instruction to be completed. Thank you  
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#2
February 7th 09, 10:21 PM
posted to comp.sys.intel
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About CPUID, why is it serialization instruction?
In article
, (Revan76) wrote: I wondered why cpuid was serialization instruction like RSM and many other. Indeed, I don't understand why it requires previouses instruction to be completed. Well, if there are other instructions that can change what CPUID returns, that would be a good reason. Even if there weren't when it was first defined, the possibility of adding them exists. -- John Dallman "C++ - the FORTRAN of the early 21st century."
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#3
February 8th 09, 11:53 AM
posted to comp.sys.intel
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About CPUID, why is it serialization instruction?
On Feb 7, 11:21*pm, wrote:
In article , (Revan76) wrote: I wondered why cpuid was serialization instruction like RSM and many other. Indeed, I don't understand why it requires previouses instruction to be completed. Well, if there are other instructions that can change what CPUID returns, that would be a good reason. Even if there weren't when it was first defined, the possibility of adding them exists. -- John Dallman * * * * * * * * * * * * * * * * * * * * * * * * * "C++ - the FORTRAN of the early 21st century." Okay thank you very much !
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