Phil Smith wrote:

>That isn't what I asked, or at least not what I meant to ask: I'm asking about 
>AFTER it's back in packed form, whether most things will care if the sign 
>nibble has changed from unsigned to signed positive.

Well, your question was somewhat open-ended, not really SIGNed... <grin> ;-D 

About that sign nibble - For myself, if I don't expect to work with negative 
numbers, then I don't care. Generally I use only one set of numeric formats in 
a program(s), either signed or not. So if I use, say COMP, then I use COMP only 
in all programs for all operations. Of course there are unavoidable exceptions, 
but as John Gilmore said, I don't mix them.

> (Yes, I see your example...that's, well, just plain strange!)

COBOL is indeed plain strange! ;-)

>Anyway, I'm left with what feels like a "Maybe". Which isn't what I'd hoped, 
>but is what I feared.

"Maybe" you could ask more probing questions to clarify this.

I hope this discussion, despite all these entertaining drifts, was useful for 
you.

Groete / Greetings
Elardus Engelbrecht

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