On 2005年8月17日 10:09:38 +0100, Ian Rogers wrote > The best place to read up on this are the Intel and AMD optimization > guides. Not really, but I found that stack instructions exploit ILP in Hammer : http://www.chip-architect.com/news/2001_10_02_Hammer_microarchitecture.html If I understand clearly Hammer (Athlon64, AFFAIK) calculate ESP register in advance to exploit ILP for stack operations. Mladen Adamovic home page: http://home.blic.net/adamm