<snip>
,PLIST8=YES
,PLIST8=NO
Then:
PLIST4 and PLIST8 cannot be specified together.
But can PLIST8=YES and PLIST8=NO be specified together?
That's not explicitly prohibited.
</snip>
According to the syntax-description conventions used in this book (and other
similar books), it is explicitly prohibited.
According to that convention, these two options are mutually exclusive.
Further, the assembler complains if you specify both. That is the case with any
keyword on any macro.
** ASMA018E Duplicate keyword in macro call; last value is used - CALL /PLIST8
<snip>
Register Contents
1 Address of the parameter list, if present
Are the contents unpredictable if the parameter list is absent?
</snip>
More precisely, "not defined". As always, it is up to the caller to comply to
the requirements posed by the callee.
<snip>
If // EXEC PGM= refers to an AMODE 64 program, does the initiator
provide an AMODE 64 plist?
</snip>
The answer is "no". That is documented. It cannot in practice be otherwise; the
AMODE attribute of the program is not known by the system at the time that the
parameter list/area is built.
<snip>
running
<snip>
Accurate wording would have been "if SYSSTATE AMODE64=YES is in effect" rather
than "if running AMODE 64" and similarly "if SYSSTATE AMODE64=YES is not in
effect" rather than "if running AMODE 24 or AMODE 31". I don't understand why
often these cases of someone pointing out ways that documentation could be
improved (and there are innumerable cases in which documentation can be
approved) are solely voiced here as a complaint and are never submitted as a
suggested update (such as via feedback on the page), with suggestion for how
exactly to improve it.
I am curious: did this wording cause you grief? If it did, then please help
others too by making sure that the flaw is pointed out to those in charge of
changing it (and pointing out on IBM-Main is generally not as helpful as
getting the publication itself updated).
Peter Relson
z/OS Core Technology Design
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