The PD
w.d informat
reads packed decimal data. Although it is usually impossible to type
packed decimal data directly from a console, many programs write packed
decimal data.
Each byte contains two
digits in packed decimal data. The value's sign is the first byte.
Because the entire first byte is used for the sign, you should specify
at least a width of 2.
The PD
w.d format
writes missing numerical data as –0. When the PD
w.d informat
reads a value of –0, the result is a value of 0.