On Tue, 2006-11-07 at 08:46 -0700, Paul Gilmartin wrote: > > On Tue, 7 Nov 2006 10:14:38 -0500, Richard Tsujimoto > > <[EMAIL PROTECTED]> wrote: > > > > >I would think a length of 1 and 0 are different, > > >and MVC should perform accordingly, e.g. if length=0, do nothing. > > > > If by "do nothing", you mean generate no instruction, that > introduces a discontinuity of another sort.
A (fanciful) zero-length MVC probably wouldn't be a no-op. Had it been defined as IBM defined zero-mask STCM, then you'd have potential storage protect exceptions, page faults and reference changes. Not exactly "do nothing"! -- David Andrews A. Duda and Sons, Inc. [EMAIL PROTECTED] ---------------------------------------------------------------------- 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
