Function - Rotate bits of a register to the left.
IN : ANY
NBR : DINT Number of rotations (each rotation is 1 bit)
Q : ANY Rotated register
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. In IL language, the first input must be loaded before the function call. The second input is the operand of the function.
Q := ROL (IN, NBR);
(* The rotation is executed only if EN is
(* ENO has the same value as EN *)
Op1: LD IN
SHL SHR ROR SHLb SHRb ROLb RORb SHLw SHRw ROLw RORw