High−level Instructions
3 − 149
Outline Performs bit-wise exclusive NOR operation on two 16-bit data items.
For the FP0R/FPΣ/FP−X/FP0/FP−e, the P type high−level instruction
“P68 (PXNR)” is not available.
Program example
Boolean
Ladder Diagram
Address Instruction
10
F68 XNR , DT10 , DT 20, DT30
S1
D
Trigger
S2
R0
10
11
ST R 0
F 68 (XNR)
DT 10
DT 20
DT 30
S1 16-bit equivalent constant or 16-bit area
S2 16-bit equivalent constant or 16-bit area
D 16-bit area for storing exclusive NOR operation result
Operands
modifier
S1 A A A A A A A A A A A A A A
S2 A A A A A A A A A A A A A A
D N/A A A A A A A A A A A N/A N/A A
(*1) This cannot be used with the FP0 and FP−e.
(*2) This cannot be used with the FP0, FP−e, FP0R, FPΣ, FP−X.
(*3) With the FP0R, FPΣ,FP−X, FP2, FP2SH, and FP10SH, this is I0 to IC.
(*4) With the FP0R, FPΣ,FP−X, FP2, FP2SH, and FP10SH, this is ID.
Explanation of example
When the trigger R0 is on, if the values of the bits for the same positions with regard to the contents of data
registers DT10 and DT20 are equal, the bit for that position is turned on (1) for data register DT30. If the values
are not equal, the bit is turned off (0).
[S1]
[S2]
[D]
····
Bit position
·····
DT10
15
010
12
0
11
110
8
1
7
101
4
1
3
100
0
1
R0: on
····Bit position ·····
DT20
15
000
12
0
11
000
8
0
7
111
4
1
3
111
0
1
····Bit position ·····
DT30
15
101
12
1
11
001
8
0
7
101
4
1
3
100
0
1
F68
P68
(PXNR)
(XNR)
16-bit data exclusive NOR
A: Available
N/A: Not Available
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