Today I Learned@lemmy.worldEnglish · 4 days ago

TIL that x86 has a floating point NOP called FNOP

stackoverflow.com

TIL that x86 has a floating point NOP called FNOP

stackoverflow.com

andrej@feddit.org to

Today I Learned@lemmy.worldEnglish · 4 days ago

What's the difference between the x86 NOP and FNOP instructions?

stackoverflow.com

I was reading the Intel instruction manual and noticed there is a 'NOP' instruction that does nothing on the main CPU, and a 'FNOP' instruction that does nothing on the FPU. Why are there two separ...

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rtxn@lemmy.world
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x86 has so many instructions, people aren’t even sure about the total count. It’s estimated to be in the low thousands.
Thorry84@feddit.nl
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Wow is that THE Raymond Chen that answered? His blog is legendary: https://devblogs.microsoft.com/oldnewthing/

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