On 2022-09-27 12:14, Hank Oerlemans wrote:
My extremely unhelpful advice ? Chuck them in the deep end !
When I was 20 my lovely German boss said write a channel program to
scan the CA-1 TMC for some criteria.
Many weeks later with BALR and USING and whatever and a hardcopy IPCS
manual it worked and that's the most complex thing I've ever written.
Who was that kid ?
Never got around to BXLE - which was, reputedly, worthy of a merit
badge in wider circles.
Despite the S/360 being a "safe" machine, with hardware
check for fixed-point overflow (among others of that ilk),
BXLE and BXH were the achilles heels of the system, because
overflow was ignored.
Even BCTR was not "safe".
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