I imagine it would. If the same alignment, then 1 memory cycle per double word. Non aligned probably would be 2 memory cycles per double word.
On Fri, Jun 3, 2011 at 6:31 PM, Dale Miller <[email protected]> wrote: > Also, back in the 370/165/168 era, there was a definite performance > difference for MVC (and maybe MVCL) when the source and destination > addresses did not reference bytes at the same offset within their containing > double words. I don't know if this is still a consideration - don't have > access to anything but my Mac or my wife's Windoze these days. > > Dale Miller > [email protected] > -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- 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
