RE: Parameters passed to RPG -- MIDRANGE-L

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>> X'19' needs to be X'019F'
>> X'981024' needs to be X'0981024F'

> But why I need to expand it to 4 or to 8 digits when it's already an 
> even no. of digits.

The right most 4-bits is the sigh (i.e. the F). This is required for a
packed decimal field. '19' is an even number, but it has to be '19F'.
That makes it odd, so we add a zero to the front to get it even. The
number would actually take up 2 bytes (8 bits per byte).

              0      1            9       F
           0000 0001      1001 1111
           -1st byte -        - 2nd byte -

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