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Determine whether the app is running on a flawed Pentium CPU
[ All Languages » VB »  Math]

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Here's a simple test that you can use to determine whether the application is running on a system equipped with a Pentium CPU affected by the FDIV bug:

Click here to copy the following block
' return True if the CPU suffers from the FDIV bug

Function IsBuggedPentium() As Boolean
  IsBuggedPentium = ((1 / 3221224323) * 3221224323) <> 1
End Function

Note that this code always returns False in a VB application that runs as p-code or compiled with the standard compilation options. To actually detect the bug, you must execute this function in an application compiled with the "Remove Safe Pentium(tm) FDIV Checks", in the Project Properties - Advanced Optimizations dialog box.



Submitted By : Nayan Patel  (Member Since : 5/26/2004 12:23:06 PM)

Job Description : He is the moderator of this site and currently working as an independent consultant. He works with VB.net/ASP.net, SQL Server and other MS technologies. He is MCSD.net, MCDBA and MCSE. In his free time he likes to watch funny movies and doing oil painting.
View all (893) submissions by this author  (Birth Date : 7/14/1981 )


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