Hi Steve, > As Paul stated, interrupts are synchronization points. Archs can only > play games with ordering when dealing with entities outside the CPU > (devices and other CPUs). But if you have assembly that has two stores, > and an interrupt comes in, the arch must guarantee that the stores are > done in that order as the interrupt sees it. Hopefully I'm not derailing the conversation too much with my questions ... but I was wondering if we had any documentation (or inline comments) elaborating on this "interrupts are synchronization points"? Thanks, Andrea