"Craddock, Chris" wrote:

<snip>

> Yes. The XTLST refers to the actual block of storage that contains the
> fully relocated program in memory. These days (I believe) there can be
> either one or two XTLST entries for a single CDE and the latter case
> only exists for split rmode modules. In days of old with scatter loads
> there were as many as necessary but I don't know whether that's even
> supported any more. Given z/OS history they probably still work, but
> I've never seen one in the wild.

<snip>

IIRC program fetch has not supported scatter for a long time (maybe SVS).
It was kept in the linkage editor because it was required to link the
nucleus
this way because IPL/NIP were designed to use the control info built in a
scatter module and could load individual CSECTs where needed. Looking at
a current nucleus (1.4), I see it still has the SCTR attribute. I don't
think there
are any XTLST entries for the nucleus.

This was a long time ago, so my memory could certainly be wrong.

Richard

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