On Mon, Jan 14, 2002 at 01:54:42PM +0100, Kevin D. Kissell wrote: > The official MIPS64[tm] architecture spec from MIPS > Technologies also provides a bit (Status.PX) which enables > the 64-bit data path without affecting address generation > and translation, which removes this quirk. Only the very > most recent 64-bit cores and CPUs implement it, however. And Linux doesn't use PX at all. Ralf