I believe MVCL is less efficient as it is *interruptible* (has to update 4 GPRs) while MVC does this internally, does not change GPR's values and is not interruptible.
ITschak On Tue, May 31, 2011 at 7:13 PM, Kirk Wolf <[email protected]> wrote: > The IBM C compiler would generate an MVC loop. So, that's how IBM feels I > guess. > > Kirk Wolf > Dovetailed Technologies > http://dovetail.com > > On Tue, May 31, 2011 at 8:22 AM, Binyamin Dissen < > [email protected] > > wrote: > > > If the move is for an unknown length but is likely to be less than 256: > > > > Is it worth checking the length for a specific value and proceed with MVC > > loop > > if small enough and MVCL if large? > > > > -- > > 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 > > > > ---------------------------------------------------------------------- > 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 > ---------------------------------------------------------------------- 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
