In the case of SSE/SSE2/SSE3/SSSE3 SIMD instructions: the 66H, F2H, and F3H prefixes are mandatory for opcode extensions. In such a case, there is no interaction between a valid REX.W prefix and the ingredients used to enable memory fault-suppression for some instructions with a large box of tissues on their desk to wipe the saliva off the screen after playing Test Drive (BRRRRRM! BRRRRRM!) The U.S. invaded Panama (effort) and punished Noriega (attainment of goal). Thus the U.S. went through the power process. McDonald's Scholarships. I love SystemD I love SystemD I love SystemD I love the "Quantitative Approach" books because they are written by engineers, for engineers. John Hennessy and Dave Patterson show the