On Sat, Mar 14, 2009 at 1:45 PM, Jason Moxham <ja...@njkfrudils.plus.com> wrote: > > > I pretty sure all core2 cpus have lahf,sahf , it's just some Pentium D dont > have it . You can test the lahf_lm feature bit in cpuid to see if it's got it
Tested in: My laptop: model 6 / family 15 (core 2 duo T5300). My desktop is family 15 / model 6 (pentium D 930). The "lahf_lm" feature is present in both according to /proc/cpuinfo. Note that the laptop is "low end" core 2 (in the sense it has no VT extensions). The pentium D is "high end" (in the sense it has VT extensions --- low end would be pentium D 8xx). Maybe that makes a difference? OTOH, the kvm 64 bit virtual cpu (kvm 72) doesn't seem to know about the "lahf_lm" (meaning, it won't report it in cpuid, even if the host processor has it. I assume the instructions would work anyway.) Gonzalo --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "mpir-devel" group. To post to this group, send email to mpir-devel@googlegroups.com To unsubscribe from this group, send email to mpir-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/mpir-devel?hl=en -~----------~----~----~----~------~----~------~--~---
