Circular Shift

The circular shift circulates the bits in the sequence of the register around both ends without any loss of information. 
Following are the two ways to perform the circular shift.

1. Circular Shift Left
2. Circular Shift Right

Circular Left Shift:

In this micro shift operation each bit in the register is shifted to the left one by one. After shifting, the LSB becomes empty, so the value of the MSB is filled in there.

Circular Right Shift:

In this micro shift operation each bit in the register is shifted to the right one by one. After shifting, the MSB becomes empty, so the value of the LSB is filled in there.

Shift micro-operations are those micro-operations that are used for the serial transfer of information. These are also used in conjunction with arithmetic micro-operation, logic micro-operation, and other data-processing operations. There are three types of shift micro-operations: 1.