Mervyn Baldwin writes:
> It doesn't work! When you redirect with '<' there IS no tail at 081.
> 
> QUESTION: Does anybody know how to check for correct input in 
> circumstances like this?
I believe that if you call 21/0B, you will find AL returns FFh if input
has been redirected, and returns 0h if it hasn't...
... The Moon is Waxing Crescent (49% of Full)
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