On Mon, 26 Nov 2007 12:04:25 -0500 Lamar Owen <lowen@xxxxxxxx> wrote: > although it appears that the claim is that x64 processors in long > mode won't run 16-bit code at all. That's correct. In my (recent) experience, DOSEMU runs approximately 13x slower on F8-x86_64 than it did with F7-i386, on exactly the same machine. Conversely, it also shows that you CAN still run this type of software on x86_64, at the cost of requiring your CPU to do more emulation to get you there. Perhaps MS is simply not interested in adding this capability to Windows. This is a very interesting read if you want to know more about this subject: http://thebs413.blogspot.com/2005/10/what-is-x86-64-long-mode-memory-model.html -- MELVILLE THEATRE ~ Melville Sask ~ http://www.melvilletheatre.com
