There is in fact an advantage to using a sign value of F, 1111b, instead of C, 1010b in some circumstances.
See the programming note midway in the first column of page 8-3 of the current PrOp. John Gilmore, Ashland, MA 01721 - USA On 4/25/13, Tom Marchant <[email protected]> wrote: > On Wed, 24 Apr 2013 11:48:57 -0700, Phil Smith wrote: > >>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. > > If you are asking whether packed decimal arithmetic > operations will be affected in any way if the sign is F, > rather than C (or A or E), the answer is "No". All of > these values are treated as a positive sign and the > decimal operations will behave exactly the same. > > -- > Tom Marchant > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
