I agree with most of the sentiments expressed here. But that ship has sailed. And it is far from true that every operating system provides support for every hardware facility.
Back when TRAP2 and TRAP4 were introduced (about 25 years ago), OS/390 development (it was pre-z/OS) was not even aware of it. And we were shocked to learn that debug tool had implemented to the architecture. I hope we can agree that that was not appropriate - the OS should have provided an API and debug tool should have used it. Whether that API would have been limited to authorized users is a different question entirely. At this point, nothing is going to be done without a strong business justification. Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
