6 BASIC INSTRUCTIONS
6.2 Arithmetic Operation Instructions
161
6
6.2 Arithmetic Operation Instructions
Adding 16-bit binary data
+(P)(_U) instruction and ADD(P)(_U) instruction can be used for addition of 16-bit binary data.
+(P)(_U) [using two operands]
These instructions add the 16-bit binary data in the device specified by (d) and the 16-bit binary data in the device specified by
(s), and store the result in the device specified by (d).
■Descriptions, ranges, and data types
■Applicable devices
• These instructions add the 16-bit binary data in the device specified by (s) to the 16-bit binary data in the device specified
by (d), and store the addition result in the device specified by (d).
• When underflow or overflow occurs in the operation result, the following processing is executed. In this case, the carry flag
(SM700, SM8022) does not turn ON.
There is no operation error.
Ladder diagram Structured text
Not supported
Operand Description Range Data type Data type (label)
(s) +(P) Addend data or the device where the data that
is added to another is stored
-32768 to +32767 16-bit signed binary ANY16_S
+(P)_U 0 to 65535 16-bit unsigned binary ANY16_U
(d) +(P) Device where the data to which another is
added is stored
-32768 to +32767 16-bit signed binary ANY16_S
+(P)_U 0 to 65535 16-bit unsigned binary ANY16_U
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB
U\G T, ST,
C, LC
T, ST, C, D,
W, SD, SW, R
U\G Z LC LZ K, H E $
(s)
(d)
b15 b0
5678 (BIN)
(d) (s) (d)
1234 (BIN) 6912 (BIN)
+
···
b15 b0
···
b15 b0
···
+ →
+ →
+ →
K-32768 K-2 K32766
K65535 K2 K1
K32767 K2 K-32767
(FFFFH) (0002H) (0001H)
(7FFFH) (0002H) (8001H)
(FFFEH) (7FFEH)(8000H)
In case of +(P)
Because the highest bit is 1, the value is negative.
In case of +(P)(_U)
Because the highest bit is 0, the value is positive.
To Next Page
Loading...
Need help?
General
