Toshiba PROSEC T1 User Manual page 252

7. Instructions
FUN 182
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
OFF No execution
ON Execution
Operand
Name
A Source
B Destination
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.
F E
RW39 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0
1 1 1 0 1 1 0 1 1 1 0 0 1 0 1 1
D0122 1 1 1 0 1 1 0 1 1 1 0 0 1 1 0 0
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 .
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T1/T1S User's Manual
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NEG 2's complement
Operation
Device
X Y R S T. C. XW YW RW SW T
D C B A 9 8 7 6
Bit inverse
+ 1
Output
OFF
ON
Register
Ö Ö Ö Ö Ö
Ö Ö Ö Ö
5 4 3 2 1 0
(4660)
(-4661)
(-4660)
Constant Index
C D I J K
Ö Ö Ö Ö Ö
Ö Ö Ö Ö Ö
6F3B0250
Ö