Posted Sep 7, 2013 16:15 UTC (Sat) by peter-b (subscriber, #66996)
In reply to: 32 bit systems? by simlo
Parent article: Introducing lockrefs
I use 128-bit CAS (CMPXCHG16B on x86-64) in some of my software, specifically for implementing double-pointer CAS as part of a wait-free disjoint set algorithm.