On Jul 11, 2006, at 7:11 AM, Garrett D'Amore wrote:
AFAIK, MMX and SSE have _nothing_ to do with floating point. It may betrue that these are _also_ unsafe in the kernel, for the same reasons that floating point is unsafe (i.e. they aren't saved on context switches) -- maybe someone familiar with the i386 port can verify?
Their registers overlap the FPU. They are also unsafe to use. -- thorpej