Re:A preview of x64 emulation on Windows for ARM
by snvzz on Friday December 11, 2020 @05:56PM
(#25392709)
https://en.wikipedia.org/wiki/Microcode
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Re:A preview of x64 emulation on Windows for ARM
by jeffbee on Saturday December 12, 2020 @12:04AM
(#25395732)
That's two completely different things. Every x86 instruction is decomposed into one or several micro-ops that are executed. Hardly any x86 instructions are microcoded, which means that the decoder has to start streaming micro-ops from the microcode ROM.