Charles Mills wrote on 10/23/2006 11:16:41 AM: > While we're on the subject of machine performance . > > > > Do I recall correctly hearing that BCTR Rn,0 is no longer the favored way of > decrementing a register, perhaps because the cache logic sees it as a > potential branch, and that AHI Rn,-1 should be substituted?
At the recent SHARE, David Bond suggested using LA to increment and LAY to decrement. Regards, John Kalinich Computer Sciences Corp ---------------------------------------------------------------------- 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
