Author: Sune Fischer
Date: 14:19:51 08/18/03
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On August 18, 2003 at 16:51:55, Gerd Isenberg wrote: > >These registers (MMX (Athlon/Opteron/P4) and XMM (Opetron/P4) may even used in >reentrant float arithmetic and should be saved and restored before/after a >context switch of current and future operating systems. I guess FXSAVE/FXRSTOR >instructions are for that purpose. > >Gerd Hmm, I don't really understand what that means. Is it possible to set the affinity of each thread, so that no context switching occurs? That way they wouldn't mess up eachothers registers, would they? -S.
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