> "That should be ZAP 3672(5,5),1971(1,5) or you will only get the first byte of the source field."
I may be rusty, but surely the ZAP overlapping byte-for-byte with both operands 3672(5,5) will simply work as if processed from right to left, changing nothing apart from perhaps the sign, as someone else commented before? So saying, I am surprised that there is an advantage in the compiler doing it this way. On 1 Jan 2016 18:29, "Shmuel Metz (Seymour J.)" <[email protected]> wrote: > In <[email protected]>, on > 12/31/2015 > at 10:15 PM, "Dale R. Smith" <[email protected]> said: > > >will sometimes use CLC to compare two Packed fields > > I hope that's only on tests for equality, not on high/low compares! > > -- > Shmuel (Seymour J.) Metz, SysProg and JOAT > ISO position; see <http://patriot.net/~shmuel/resume/brief.html> > We don't care. We don't have to care, we're Congress. > (S877: The Shut up and Eat Your spam act of 2003) > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
