In my previous post I explained you the function of Shift micro-operation(It perform shift operation on data stored in register).Now I disc...
In my previous post I explained you the function of Shift micro-operation(It perform shift operation on data stored in register).Now I discuss the Shifter functional table and its circuit diagram.
Functional Table:-
In a processor with many register is more efficient to implement the shift operation with a combinational Circuit.
Circuit Diagram of Shifter:-
In above circuit diagram we used 4 shifter with 4 inputs i.e. A(0),A(1),A(2),A(3) and produce 4 data outputs H(0),H(1),H(2),H(3).
Functional Table:-
| Select(S) | H(0) | H(1) | H(2) | H(3) |
|---|---|---|---|---|
| 0 | I(R) | A(0) | A(1) | A(2) |
| 1 | A(1) | A(2) | A(3) | I(L) |
In a processor with many register is more efficient to implement the shift operation with a combinational Circuit.
Circuit Diagram of Shifter:-
In above circuit diagram we used 4 shifter with 4 inputs i.e. A(0),A(1),A(2),A(3) and produce 4 data outputs H(0),H(1),H(2),H(3).
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