ROL
Function - Rotate bits of a register to the left.
Inputs
|
Input |
Data type |
Description |
|
IN |
ANY |
Register. |
|
NBR |
ANY |
Number of rotations (each rotation is 1 bit). |
Outputs
|
Output |
Data type |
Description |
|
Q |
ANY |
Rotated register. |
Diagram
Remarks
Arguments can be signed or unsigned integers from 8 to 32 bits.
In LD language, the input rung (EN) enables the operation, and the output rung keeps the state of the input rung.
ST Language
Q := ROL (IN, NBR);
FBD Language
LD Language
The rotation is executed only if EN is TRUE.
ENO has the same value as EN.
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