factor

Author	SHA1	Message	Date
Joe Groff	9c055136a7	vm: switch atomic::add to atomic::fetch_add Win32 only provides fetch-and-add, not add-and-fetch, and we don't really care. Rename the functions so the order of operations is clear.	2011-11-07 17:58:53 -08:00
Joe Groff	9fb10f60b5	vm: add atomic::load and atomic::store functions Abstract out the fence-and-load and store-and-fence patterns	2011-11-02 13:23:19 -07:00
Joe Groff	66356c1d24	vm: better organize atomics and sample counter	2011-11-02 13:23:15 -07:00