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Re: "Meltdown" and "Spectre": Every modern processor has unfixable security flaws




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On Fri, Jan 05, 2018 at 02:41:57PM +0100, Thomas Schmitt wrote:
> Hi,
> 
> tomas@xxxxxxxxxx wrote:
> > Does any of the processors in the M68K family support VM?
> 
> They did since the early 1980s when i wondered what the advantage of an
> 68010 would be over an 68000 (with HP BASIC: none).
>   http://gunkies.org/wiki/MC68010
> 
> After all, early Sun, HP and Apollo Unix workstations were based on 680X0.

With TLB cache and all that? Pretty impressive :)

> > Does any of the M68K family members prefetch speculatively?
> 
> The last one (68060) had Branch Prediction, which implies some kind of
> speculative execution and data prefetching.
>   https://en.wikipedia.org/wiki/Motorola_68000_series

I remember at the time to be pretty discouraging to see 8086 and ilk
eating all the market.

> Man against hardware. Who will finally win ?

Hardware.

Cheers
- -- t
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