Patrick O'Keefe wrote:
How about for all those recursively invoked routines that could also be
executed as a main task. You could know when to stop unwinding when R14
pointed at the SVC. (Ok. No such program was ever written. But it
coulda.)
Are you sure? I once wrote a very small program:
SVC 12
END
after somebody told me that an unprivileged program couldn't
crash the system. Under SVS and later systems this has been
fixed.....
Gerhard Postpischil
Bradford, VT
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