On Fri, 2014-09-12 at 14:53 -0700, Daniel Kang wrote: > > > > >All processors supporing mmx2 also support cmov, so if a test for > > mmx2 > succeeds, we can use cmov. > > Since I originally thought mmx => cmov (and apparently am wrong) is > there > official documentation supporting this? >
As an example, here's the /proc/cpuinfo contents for my AMD K6 box. You'll note that on the flags line it does have 'mmx', but does not have 'cmov'. (It also doesn't have 3dnow; that was introduced in later chips in the K6 series.) I'm actually looking into getting FATE running on this box right now, we'll see how that goes. processor : 0 vendor_id : AuthenticAMD cpu family : 5 model : 7 model name : AMD-K6tm w/ multimedia extensions stepping : 0 cpu MHz : 266.603 cache size : 64 KB fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr cx8 mmx bogomips : 533.42 clflush size : 32 cache_alignment : 32 address sizes : 32 bits physical, 32 bits virtual power management: -- Calvin Walton <calvin.wal...@kepstin.ca> _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel