>To not be using at least SSE we're talking about software from before the turn of the century. No, we're just talking about software, which was compiled targe

>To not be using at least SSE we're talking about software from before the turn of the century. No, we're just talking about software, which was compiled targeting MMX/x87 code generation. It could have been made last week. Not that my original question really matters at all, asked and answered, but there are a whole host of other performance issues with mode switching from mixing libraries compiled for the various SIMD targets.