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So I believe that the statement that "AVX-128 instructions that do not use YMM registers are also safe to use on operating systems without AVX-support[citation needed], since AVX-support in operating systems refers to handling YMM register state.[3]" is totally incorrect. <small class="autosigned">— Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/109.188.120.144|109.188.120.144]] ([[User talk:109.188.120.144|talk]]) 00:46, 25 October 2015 (UTC)</small><!-- Template:Unsigned IP --> <!--Autosigned by SineBot-->
P.S. it makes sense, since AVX-128 instructions clear the upper half of a destination YMM register, so even AVX-128 touches all 256 bits of YMM reg. <small class="autosigned">— Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/109.188.120.144|109.188.120.144]] ([[User talk:109.188.120.144|talk]]) 09:22, 25 October 2015 (UTC)</small><!-- Template:Unsigned IP --> <!--Autosigned by SineBot-->
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