malc <av1...@comtv.ru> writes: All is the keyword here, i doubt that exhaustive search was performed furthermore, AMDs documentation (to the best of my knowledge still) still maintains that ZF is undefined.
AMD indeed still says undefined in their documentation (as of two hours ago). I have asked AMD for a clarification, mainly to make sure they are aware of Intel's documentation change. (I am not certain about what you doubt. As I said, I did not check all 2^64 operand values combined all possible bt bit position arguments. I believe I have checked all 64-bit x86 processors implementations [two generations of Core2, NHM and WSM based Core ix, Via Nano, as well as all Athlon64/Opteron generations).) -- Torbjörn
