tomatoely@sh.itjust.works to

Today I Learned@lemmy.worldEnglish · 1 year ago

TIL Intel Pentium Processors used to work with RISC operations by decoding CISC instructions before executing them

fanael.github.io

4

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TIL Intel Pentium Processors used to work with RISC operations by decoding CISC instructions before executing them

fanael.github.io

tomatoely@sh.itjust.works to

Today I Learned@lemmy.worldEnglish · 1 year ago

4

The legend of "x86 CPUs decode instructions into RISC form internally" - Fanael's random ruminations

fanael.github.io

A dive into what x86 instruction are decoded into various processors, to determine the truth of the idea that they're just RISC-like internally.

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1 year ago
The linked article claims that this is no longer the case since about a decade now.
- Lojcs@piefed.social
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  Risk instruction is not very accurate since even arm has them but microops still exist

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