Section 11,48: IOR

 IOR (integer, integer)

 A function that performs a logical OR of the arguments on a bit by
 bit basis (bitwise inclusive OR).
 +------+---------+----------+------------+-------------+        
 | Args | Generic | Specific |  Argument  | Result Type |
 +------+---------+----------+------------+-------------+
 |  2   |  IOR    |  --      | INTEGER*1  | INTEGER*1   |
 |      |         | IIOR     | INTEGER*2  | INTEGER*2   |
 |      |         | JIOR     | INTEGER*4  | INTEGER*4   |
 |      |see note | KIOR     | INTEGER*8  | INTEGER*8   |
 +------+---------+----------+------------+-------------+

 NOTE: KIOR is only available on AXP systems.