> -----Original Message-----
> From: IBM Mainframe Discussion List On Behalf Of Rick Fochtman
>
> ---------------------<snip>-----------------------
>
> >Damn! Here I thought I'd discovered a new super-secret,
> undocumented,
> >instruction! Like the one that doesn't allow z/OS to run on an IFL
> >(yes, I know it is more complicated than that).
> >
> >
> ---------------------<unsnip>------------------
> Which one is that? :-)
More likely the IFL has one or more instructions disabled, without which
z/OS simply won't IPL.
-jc-
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