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Richard Thomas wrote:
You chaps are probably aware of this already, but I never knew that you can
use ANY Branch/indicator Keyword from an eligible Keyword Group for an
op-code and QPRCRTPG doesn't care.

If I'm not mistaken, all of the branch/indicator keywords in any given group are considered synonymous.

One of the things you learn in first-semester college Assembler is that a machine-level "compare" is almost always nothing more than a "subtract" with the result discarded, and only the "status bits" (or equivalent) affected.

--
JHHL
(who learned PDP-11 and 8086 before learning MI)

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