In XPLINK, R1 is just the first function parameter. It can be an address (above the bar or below) or some number or garbage.
Martin =?UTF-8?B?VHLDvGJuZXI=?= wrote: > > Chris, > > I saw read flags as well....I did google - all I found with substance > (on IBM-MAIN) was the fact that R1 is now set to an address valid in > any mode (regardless of callers mode). IOW high order word is is cleared > even if invoking pgm is unaware of that word. > > I would hardly call this a problem--- R14 thru R1 are known to be > transient....so what? > > -- > Martin -- Don Poitras - zSeries R & D - SAS Institute Inc. - SAS Campus Drive mailto:[email protected] (919)531-5637 Fax:677-4444 Cary, NC 27513
