> (But it could be a problem if the buffer is > right at the end of the virtual memory space :). Sorry about the buggy ...
that will be a problem if the hardware is sloppy, but it would be true regardless how you wrote the test (because it's the resulting prefetch addresses that then matter). i think hardware designers now know about this problem (since it's fairly old) but that probably hasn't stopped a few from not including it in the processor manual but slipping it instead into the errata.
