18 Jan
2008
18 Jan
'08
10:03 p.m.
On Fri, 18 Jan 2008 12:43:39 -0800, Cory Nelson wrote:
On Jan 18, 2008 9:56 AM, Jeffrey Yasskin <jyasskin@google.com> wrote:
using shared_ptr<T> as a value type. The implementation I'm thinking of uses hazard pointers (http://erdani.org/publications/cuj-2004-12.pdf) and double-wide-cas (cmpxchg16b on x86-64). So I have three questions for this list:
Athlon 64s (pre-dual core) do not have cmpxchg16b - how do you plan to get around that?
iirc, the x86_64 doesn't actually use a 64-bit virtual address space, but only 48-bit ... the remaining 16 bit could be used to store the tag ... best, tim -- tim@klingt.org http://tim.klingt.org Question: Then what is the purpose of this "experimental" music? Answer: No purposes. Sounds. John Cage