On 11/23/2012 07:49 PM, Yuhong Bao wrote:
+ * Specifically, cr4 exists if and only if CPUID exists,
+ * which in turn exists if and only if EFLAGS.ID exists.
This may be true for *Intel* 486 CPUs as VME was implemented at the same time
as CPUID, but I am not sure that it is true for AMD 486 CPUs.
Yuhong Bao
That is the architecture; if you know of a counterexample speak up. "I
am not sure" doesn't count.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
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