How to write an X86 extension -

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i wondering if point me resources or overviews how x86 extensions made. research in how make custom extension in spirit similar x86-64, have idea may worthwhile (which won't go in @ time, don't ask), not sure information how done or research/learn on how it.

thanks, peter

architectures, such x86 , x86-64, not written in software, define hardware software runs on. x86 not code, rather, defines instruction set, how memory accessed, registers, etc.

the architecture part of processor. literally need design , manufacture new processor make modification architecture itself. out of reach people.


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