Threads in the new ISO C Standard from 2011
Threads in the new ISO C Standard from 2011
Threads in the new ISO C Standard from 2011
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Power Memory Barrier Instructions<br />
The Power memory barrier <strong>in</strong>structions create a memory barrier with<br />
two sets of <strong>in</strong>structions:<br />
<strong>the</strong> A-set with <strong>in</strong>structions ai preced<strong>in</strong>g <strong>the</strong> barrier, and<br />
<strong>the</strong> B-set with <strong>in</strong>structions bj follow<strong>in</strong>g <strong>the</strong> barrier.<br />
Depend<strong>in</strong>g on which barrier <strong>in</strong>struction is used, some bj <strong>in</strong>structions<br />
may be reordered with some ai <strong>in</strong>structions.<br />
Jonas Skeppstedt (js@cs.lth.se) Lecture 6 2013 49 / 70