If you're going to directly dispute what I said, then you have an obligation to back it up.
sas On Thu, Aug 2, 2018 at 12:03 PM, Seymour J Metz <sme...@gmu.edu> wrote: > > In any case, plain DC 0H (or any other unit) has been supported for a > long > >time, if not from the beginning of HLASM. > > Plain DC 0H is not supported. Plain DS 0H was supported long before z/OS, > back in the early S/360 days. > > > -- > Shmuel (Seymour J.) Metz > http://mason.gmu.edu/~smetz3