How about a macro to replace MVCL with a loop using the same registers but using MVC? Anyone ever write one?
On Tue, May 31, 2011 at 2:49 PM, Binyamin Dissen <[email protected]> wrote: > On Tue, 31 May 2011 19:23:46 +0300 Itschak Mugzach <[email protected]> wrote: > > :>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. > > If the move is of an uncertain length, one would need to play with three > registers in-line. And of course there is the conditional branch and possible > last EX of an MVC. -- 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
