> Note that you'll need to have 'options CPU_ENABLE_SSE' in your kernel
> configuration file if you have a SSE-capable CPU, otherwise you'll get
> SIGILL from certain applications (e.g. ncurses)

What if you don't want to do this though? Athlon XP processors support SSE
instructions, but not at the same time as 3dnow instructions. The
processor has to switch modes or something like that. What if a user wants
to actually use the 3dnow instructions? Does this mean that on an athlon
XP which supports SSE instructions, if you don't want to enable them
you'll catch SIGILL and die when using those "certain apps?" Just


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