this post was submitted on 25 Jan 2024
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[–] stingpie@lemmy.world 20 points 9 months ago (3 children)

Yes. Any turing complete processor can perfectly emulate any other turing complete processor, whether it is x86, arm, or riscv. Mainline Linux can then run on this emulated processor without modification.

[–] Rodeo@lemmy.ca 14 points 9 months ago (1 children)

Damn that's gonna be slow.

But I guess speed was not a criterion.

[–] xmunk@sh.itjust.works 7 points 9 months ago

It's technically correct, the best kind of correct.

[–] Tja@programming.dev 4 points 9 months ago

I guess it's the difference of can today vs could if this emulator existed...

[–] monk@lemmy.unboiled.info 1 points 9 months ago (1 children)

"boot" is the next important part. Have you tried reading it in full?

[–] stingpie@lemmy.world 1 points 9 months ago (1 children)

Emulated processors can do the same things as physical processors, including booting from disk.

[–] Ross_audio@lemmy.world 2 points 9 months ago (1 children)

Boot = Bootstrap

If you've loaded up a virtual CPU first that's not a boot of mainline Linux on the CPU.

[–] stingpie@lemmy.world 1 points 9 months ago

I respectfully disagree. The turning machine is not doing any set-up before the emulated CPU begins execution, and all of the actual BIOS is done by the emulated CPU.