Design a $4-$bit shift register

Objectives

Review Logisim in the CS$201$ lab material and particularly Introduction to Logisim

Review D$-$flip$-$flop and Multiplexers $($MUX$-4)$

Build a $4-$bit shift register circuit

Preparation

Read the lab notes

Lab Assignments

Create a circuit project Lab$1.$circ in the Logisim.

Add a circuit testing D$-$Flip$-$Flop

Add a circuit testing a $4-1$ Multiplexer

Build a $4-$bit shift register using four D$-$flip$-$flops and four multiplexers $($MUX$-4).$

Make sure that you have selection inputs control over it$.$

Select Inputs Function

S$1$ S$0$

$------------------------$

$00$ Store

$01$ Shift left

$10$ shift right

$11$ Load

Here is the design diagram for you to design the circuit:

Hand$-$In

Submit the file Lab$1.$circ which includes all the circuits needed.

Submit the file Lab$1.$pdf which contains the following:

Screenshot of the testing circuit of the one bit D$-$flip$-$flop

Screenshot of the testing circuit of the one bit $4-1$ Multiplexer

Screenshot of the circuit implementing the above $4-$bit shift register design, with proper labels for the inputs$/$outputs$.$

Test your circuit with different input values.

Screenshots of the four different scenarios.