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32 bit systems?32 bit systems?Posted Sep 12, 2013 13:12 UTC (Thu) by farnz (guest, #17727)In reply to: 32 bit systems? by simlo Parent article: Introducing lockrefs
On x86, CMPXCHG8B is 8 bytes (64-bits), and is present since the Pentium (it's the instruction involved in the F0 0F bug). On other platforms, LL/SC can usually be used to emulate a double-pointer compare and swap.
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