Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual page 596

Logic Instructions
Description
Flags
Precautions
556
Area
Indirect DM/EM
addresses in binary
Indirect DM/EM
addresses in BCD
Constants
Data Registers
Index Registers
Indirect addressing
using Index Registers
XORW(036) takes the logical exclusive OR of data specified in I
outputs the result to R.
• The logical exclusive OR is taken of corresponding bits in I
cession.
• When the content of corresponding bits of I
be output to the corresponding bit of R and when there are different, 0 will
be output to the corresponding bit in R.
I I + I I R
1, 2 1, 2
I I
1
1
1
0
0
Name Label
Error Flag ER
Equals Flag =
Negative Flag N
When XORW(036) is executed, the Error Flag will turn OFF.
If as a result of the OR, the content of R is 0000 hex, the Equals Flag will turn
ON.
If as a result of the OR, the leftmost bit of R is 1, the Negative Flag will turn
ON.
I
1
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
*D00000 to *D32767
*E00000 to *E32767
*En_00000 to *En_32767
(n = 0 to C)
#0000 to #FFFF
(binary)
DR0 to DR15
---
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
R
2
1 0
0 1
1 1
0 0
Operation
OFF
ON when the result is 0.
OFF in all other cases.
ON when the leftmost bit of R is 1.
OFF in all other cases.
Section 3-13
I R
2
---
and I
1 2
and I in suc-
1 2
and I are different, a 1 will
1 2
and