On Wed, 30 May 2007 09:45:04 -0700 Edward Jaffe <[EMAIL PROTECTED]> wrote:
:>Binyamin Dissen wrote: :>> Is there much of a cost to switching amodes? :>> Is it worth writing code to be able to run completely in 64 bit mode (and :>> maintain the top half of the registers) or is it fine to switch in and out :>> when referencing storage above the bar? :>> POPs does not indicate anything. :>In my experience, excessive switching of addressing mode is quite :>expensive. I suspect it's because the entire pipeline must be flushed. I didn't see that 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
