Displaying 1 result from an estimated 1 matches for "20about".
2006 Aug 28
2
Extending dmitest to check for Long Mode (aka 64 versus 32 bit)
...are missing a couple of definitions in
dmi_processor.h, specifically, the "long mode" flag. I
need to use this flag to determine whether a machine is
64-bit capable or not.
There is a great web page explaining the "long mode" flag
at:
http://www.mega-tokyo.com/osfaq/Tell%20me%20about%20x86%2064%20bits%20CPU%20...
>From the web site I see the following:
"How do I detect if the CPU is 64 bits ? You can find that out by
checking CPUID. All AMD64 compliant processors have the
longmode-capable-bit turned on in the extended feature flags (bit 29)
in EDX, after calling CPUID...