Hi Erik!
> BPL branches if the MINUS flag is not set. [...]
> [...] the MINUS flag is not set, and BPL won't branch.
Well. Confusing topic :-)
I'm not sure, but maybe you just can't do a simple compare
which number is bigger in _signed_ 8-Bit math. The results
are somewhat unpredictable I'd say. Maybe you've to test some
cases (A neg? B neg? A>$80? B>80?) first, and then branch into the
correct handling routine.
According to the problem that is to be solved, I'd avoid such
braintrashing stuff anyway. Most of the times there's a way simpler
solution, for example in the given problem you could add #20 to both
values to bail out of most troubles...
Besides: For > & < questions the carry is more important than
the minus flag anyway...
Greetings,
Manuel
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Für Schnäppchenjäger ist jetzt Beutemachen angesagt:
Quelle hat knallhart reduziert. Aber nur solange Vorrat reicht!
http://www.nexgo.de/c/pub/redir.php/quelle1
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