On Wed, 30 May 2007 13:48:47 -0500 Tom Harper <[EMAIL PROTECTED]> wrote:
:>Certainly, if operands were pre-fetched based on 31-bit addresses, the :>addresses of operands could change once you were in 64-bit mode, so the :>actual operands could be changed. If operands were changed, since the :>processor makes pre-fetching decisions based on preliminary compares of :>possibly changed operands, wouldn't a pipeline flush be in order? It all :>depends on the millicode and I'm not sure what they do. Perhaps someone :>with more knowledge will supply us with an answer. Might someone from IBM wish to comment? Usually instructions that cause stalls or delays are documented in the POPs. -- Binyamin Dissen <[EMAIL PROTECTED]> http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel Should you use the mailblocks package and expect a response from me, you should preauthorize the dissensoftware.com domain. I very rarely bother responding to challenge/response systems, especially those from irresponsible companies. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
