RE: Re[2]: Packed data

["Kahn, David [JNJFR]" <DKahn1@xxxxxxxxxxxxx>]

Paul,

Don't worry, I'm sure you're forgiven.

When I did COBOL on horse-drawn mainframes 'F' would be used in unsigned
binary coded decimal fields, and therefore treated as +ive, 'C' and 'D'
would be used for signed +ive and -ive respectively. I seem to remember it
was considered inefficient to specify unsigned for an arithmetic result
field as the compiler would generate an extra 'Or Immediate' instruction to
force 'F' into the sign nibble.

Where the other values might come from I haven't a clue.

Dave Kahn
Johnson & Johnson International (Ethicon) France
Phone : +33 1 55 00 3180
Email :  dkahn1@jnjfr.jnj.com (work)
           dkahn@cix.co.uk      (home)



-----Message d'origine-----
De: pcunnane@learningco.com [mailto:pcunnane@learningco.com]
Date: 01 September 1999 15:16
À: 'RPG400-L@midrange.com'; Kahn; David [JNJFR]
Objet: Re[2]: Packed data


     True, sorry.  The dangers of over-generalisation!
     
     Matter of interest, what do the various sign digits represent?
 
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