sse 4.1, 4.2 different from sse 4a

[Gil Dabah]

Thanks for clarification.

Peter Johnson wrote:
> On Sat, 18 Aug 2007, dfeustel at mindspring.com wrote:
>
>   
>> So sayeth xbit labs in its latest article on the AMD K10 microarchitecture at
>> http://www.xbitlabs.com/articles/cpu/display/amd-k10_10.html. I'm not sure
>> that I agree with xbit about this. What do you think?
>>     
>
> You're right; they're indicated by different CPUID bits (SSE4.1 and 4.2 
> are ECX bits 19 and 20 for EAX=0x0001; SSE4a is ECX bit 6 for 
> EAX=0x80000001).  I'll fix yasm.  Not a big deal in the short term of 
> course; it only affects CPU xxx directive processing.
>
> Thanks,
> Peter
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