CBL_XOR

Does a logical XOR between the bits of two data items.

Syntax:
call "CBL_XOR" using    source
                        target
               by value length
Parameters:
Using call prototype (see Library Routines - Key) Picture (32-bit systems)
source cblt-x1-compx Any data item.
target cblt-x1-compx Any data item.
length cblt-os-size Numeric literal or pic x(4) comp-5.
On Entry:
source One of the data items to exclusive-OR.
target The other data item to exclusive-OR.
length The number of bytes of source and target to exclusive-OR. Positions in target beyond this are unchanged.
On Exit:
target The result.
Comments:

The routine starts at the left-hand end of source and target and exclusive-ORs the bits together, storing the result in target. The truth table for this is:

source target result
0 0 0
0 1 1
1 0 1
1 1 0
See Also: