On 11/13/12 3:48 PM, Alex Rønne Petersen wrote:
Slices and delegates can't be loaded/stored atomically because very few architectures provide instructions to atomically load/store 16 bytes of data (required on 64-bit; 32-bit would be fine since that's just 8 bytes, but portability is king). This is also why ucent, cent, and real are not included in the list.
When I wrote TDPL I looked at the contemporary architectures and it seemed all were or were about to support double-word atomic ops. So the intent is to allow shared delegates and slices.
Are there any architectures today that don't support double-word load, store, and CAS?
Andrei
