Re: Christmas Quiz...

From	"Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups	comp.lang.c++
Subject	Re: Christmas Quiz...
Date	2023-01-17 18:25 -0800
Organization	A noiseless patient Spider
Message-ID	<tq7lb5$3fv85$1@dont-email.me> (permalink)
References	<tod3b8$3c8u8$4@dont-email.me>

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On 12/26/2022 1:22 PM, Chris M. Thomasson wrote:
> Imagine you are on a SPARC in RMO mode, you are programming in assembly 
> language. What memory barrier instruction is the most efficient _and_ 
> correct for use _after_ using an atomic RMW instruction to take 
> exclusive access? Think about locking a mutex...
> 
> A: MEMBAR #LoadLoad
> 
> B: MEMBAR #LoadStore | #LoadLoad
> 
> C: MEMBAR #StoreLoad | #LoadLoad
> 
> D: MEMBAR #StoreLoad | #StoreStore
> 
> 
> What about the membar we have to use before atomically unlocking this 
> mutex?
> 
> 
> A: MEMBAR #LoadLoad
> 
> B: MEMBAR #StoreLoad | #LoadLoad
> 
> C: MEMBAR #LoadStore | #StoreStore
> 
> D: MEMBAR #StoreLoad | #StoreStore


Get the answer by clicking on the following link. The password is membar:

http://fractallife247.com/test/hmac_cipher/ver_0_0_0_1?ct_hmac_cipher=b77c814baf6376631199bcdf0a0e763136fceb0f56dd238dba943d05e54a47451c63e2fe25ca4b6b8b9dfaba2fd22dccf20261ad63a409ce2384cb734804bcbb068edcd3a7ae6bf91ba7d88e8c27a82b4c973f7421020e43

Just a test of my HMAC cipher... ;^)

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Christmas Quiz... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-12-26 13:22 -0800
  Re: Christmas Quiz... "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-12-26 23:17 +0100
  Re: Christmas Quiz... Bonita Montero <Bonita.Montero@gmail.com> - 2022-12-27 04:59 +0100
    Re: Christmas Quiz... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-12-27 13:29 -0800
    Re: Christmas Quiz... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-01-04 00:40 -0800
      Re: Christmas Quiz... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-01-04 00:41 -0800
  Re: Christmas Quiz... Michael S <already5chosen@yahoo.com> - 2022-12-27 03:38 -0800
  Re: Christmas Quiz... Michael S <already5chosen@yahoo.com> - 2022-12-27 03:42 -0800
    Re: Christmas Quiz... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-12-27 13:31 -0800
      Re: Christmas Quiz... Michael S <already5chosen@yahoo.com> - 2022-12-27 14:09 -0800
        Re: Christmas Quiz... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-12-27 14:17 -0800
          Re: Christmas Quiz... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-12-29 20:42 -0800
  Re: Christmas Quiz... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-01-04 00:38 -0800
  Re: Christmas Quiz... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-01-17 18:25 -0800

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