$2.$ Complete the below diagram of a $4-$bit register so that it is able to perform the following operations: Complete the below diagram of a $4-$bit register so that it is able to perform the following operations:

parallel read$/$output of all bits $($just look at the $Q$ values$)$

Control the MUXs using the following codes:

${000}_2-$ parallel write$/$load$/$input of all bits

$01-$ logical shift right one bit positions $($bits shifted out of least$-$significant bit are lost and a $"0"$ is

shifted into the most$-$significant bit$)$

${10}_2-$ circular shift left two bit positions $($each bit shifted out of most$-$significant bit is shifted into the

least$-$significant bit$)$

${11}_2-$ arithmetic shift right $($sign$-$extend the most$-$significant bit$)$

Note: For each D$-$flip flop, the output of a MUX is used as the D$-$input as shown below.

Name:

Data to Write in Parallel

$$ parallel read$/$output of all bits $($just look at the Q values$)$

Control the MUXs using the following codes:

$002-$ parallel write$/$load$/$input of all bits

$012-$ logical shift right one bit positions $($bits shifted out of least$-$significant bit are lost and a $0$ is

shifted into the most$-$significant bit$)$

$102-$ circular shift left two bit positions $($each bit shifted out of most$-$significant bit is shifted into the

least$-$significant bit$)$

$112-$ arithmetic shift right $($sign$-$extend the most$-$significant bit$)$

Note: For each D$-$flip flop, the output of a MUX is used as the D$-$input as shown below.