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Difference between PREFETCH and PREFETCHNTA instructions

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3 1 The PREFETCHNTA instruction is basically used to bring the data from main memory to caches by the prefetcher, but instructions with the NT suffix are known to skip caches and avoid cache pollution. So what does PREFETCHNTA do which is different from the PREFETCH instruction? caching assembly x86 prefetch isa share | improve this question edited Nov 12 '18 at 22:08 asked Nov 12 '18 at 21:33 Abhishek Nikam 111 1 11 add a comment  |  3 1 The PREFETCHNTA instruction is basically used to bring the data from main memory to caches by the prefetcher, but instructions with the NT suffix are known to skip caches and avoid cache pollution. So what does PREFETCHNTA do which is different from the PREFETCH instruction? caching assembly x86 prefetch isa share | improve this question edited Nov 12 '18 at 22:08 asked Nov 12 '18 at 21:33 Abhishek Nikam 111 1 11