Fixes #8681.
They are only used if the architecture doesn't support them directly. git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4360 a95241bf-73f2-0310-859d-f6bbb57e9c96
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4339 a95241bf-73f2-0310-859d-f6bbb57e9c96