Re: basic questions on MPS

[Richard Stallman]

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  > > Do the CPUs we use nowadays have hardware features for that?
  > > What aout the CPUs in the newest non=backdoored machines, such
  > > as the Thinkpad t800 and x200s?

  > Yes, of course.  An MMU is needed to implement virtual memory.  Without
  > MMUs, operating systems like Unix would not be possible. 

Thanks.  I didn't know that an ordinary MMU, designed for kernels
to do paging, would also have the features for an application program
to set up its own read barriers.

-- 
Dr Richard Stallman (https://stallman.org)
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)