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| IBw.d |
| Numeric | |
| Width range: | 1-8 bytes |
| Default width: | 4 |
| Decimal range: | 0-10 |
| Alignment: | |
| OS/390 specifics: | two's complement notation |
| Details | |
| See Also |
| Details |
On an IBM mainframe system, integer values are stored in two's complement notation.
If an overflow occurs, the value written is the largest value that fits into the output field; the value will be positive, negative, or unsigned, as appropriate. If the format includes a d value, the number is multiplied by 10d.
Here are some examples of the IBw.d format:
| Value | Format | Results (Hex) | Notes | |
|---|---|---|---|---|
| -1234 | ib4. |
FFFFFB2E |
||
| 12.34 | ib4. |
0000000C |
||
| 123456789 | ib4. |
075BCD15 |
||
| 1234 | ib6.2 |
00000001E208 |
a d value of 2 causes the number to be multipled by 102 | |
| -1234 | ib6.2 |
FFFFFFFE1DF8 |
a d value of 2 causes the number to be multipled by 102 | |
| 1234 | ib1. |
7F |
overflow occurred | |
| -1234 | ib1. |
80 |
overflow occurred | |
Note: In these
examples, the Value column
represents the value of the numeric variable. The Results column shows a
hexadecimal representation of the bit pattern written by the corresponding
format. (You cannot view this data in a text editor, unless you can view
it in hexadecimal representation.) ![[cautionend]](../common/images/cautend.gif)
| See Also |
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