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T1/T1S User’s Manual
7. Instructions
FUN 182 NEG 2’s complement
Expression
Input
-
[
A
NEG
B
]
-
Output
Function
When the input is ON, this instruction finds the 2’s complement value of
A
, and stores it in
B
.
Execution condition
Input Operation Output
OFF No execution OFF
ON Execution ON
Operand
Name Device Re
g
ister Constant Index
X Y R S T. C. XW YW RW SW T C D I J K
A
Source
ÖÖÖÖÖÖÖÖÖÖ Ö
B
Destination
ÖÖÖÖÖÖÖÖÖ
Example
When X007 is ON, the 2’s complement value (sign inverted data) of RW39 is stored in D0122.
For example, if RW38 is 4660, the 2’s complement value -4660 is stored in D0122.
2’s complement data is calculated as follows.
FEDCBA9876543210
RW39 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 (4660)
1 1 1 0 1 1 0 1 1 1 0 0 1 0 1 1 (-4661)
D0122 1 1 1 0 1 1 0 1 1 1 0 0 1 1 0 0 (-4660)
Note
·
The data range of
A
is -32768 to 32767. If the data of
A
is -32768, the same data -32768 is stored
in
B
.
Bit inverse
+ 1
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