>> The x86 supports atomic load-modify-store operations. None of the others do. > As opposed to load-linked/store-conditional, which is a different way to expr

>> The x86 supports atomic load-modify-store operations. None of the others do. > As opposed to load-linked/store-conditional, which is a different way to express the same basic idea? Perhaps that x86 has atomic addition, where other architectures must use a cas/ll+sc loop?