On Feb 8, 2021, at 11:38 AM, Gibney, Dave <gib...@wsu.edu> wrote: > > > PTR DC A(0) > label L R15,PTR > LTR R15,R15 > BNZ CALLIT > ... ... Code that always > leaves the same value in R15 > ST R15,PTR > CALLIT BALR R14,R15 > > Still incur cache flush?
If PTR is in the same cache line as your code, then yes. -- Pew, Curtis G curtis....@austin.utexas.edu ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN