On Thu, Jul 2, 2020 at 5:56 AM Joe Monk <[email protected]> wrote:
> Honestly, this whole discussion is kind of pointless, no?
>
> z/os IBM/390 IBM/370 IBM/360 all share ... instruction set. While the
> newer models all have newer instructions, object code assembled on a 360 is
> just as valid today as it was in 1960.
>
Yeap. IEFBR14 still works! {grin} The only thing which might not work would
be something which was CPU speed dependent. And such programs are
specifically mentioned in the POPS as "non-conformant" (my word). This
generally doesn't mean much, but it can lead to a "race" condition being
observed on a faster or slower machine in an improperly coded multitasking
environment. Or even an environment which has more or fewer CPs enabled.
>
> Joe
>
> --
People in sleeping bags are the soft tacos of the bear world.
Maranatha! <><
John McKown
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