Factor supports machines without SSE2 if you compile it yourself. In this case it will use the x87 floating point. The binaries are built to use SSE2 for floati

Factor supports machines without SSE2 if you compile it yourself. In this case it will use the x87 floating point. The binaries are built to use SSE2 for floating point since most machines have it these days. There is SIMD support in the language as well which supports most of SSE4.2, check out http://docs.factorcode.org/content/article-math.vectors.simd.html http://docs.factorcode.org/content/article-math.vectors.simd...