COA Quiz 1

What is the purpose of a shift micro-operation?

• To perform arithmetic operations.

• To transfer data between registers.

• To change the position of bits in a register.

• To control the input/output operations.

The micro-operation R1 <- R1 + R2 is an example of which type of operation?

• Logical

• Shift

• Arithmetic

• Data transfer

Which type of shift operation moves bits to the left and fills the empty bit positions with zeros?

• Logical left shift

• Logical right shift

• Circular shift

• Arithmetic shift

What does the control unit use to signal a register transfer operation?

• Control signals

• Clock pulses

• Data lines

• Address lines

Which type of micro-operation involves AND, OR, and NOT operations?

• Arithmetic

• Logical

• Shift

• Transfer

Which register operation clears the content of a register?

• Reset

• Load

• Shift

• Transfer

A micro-operation that rotates the bits of a register is called:

• Logical shift

• Arithmetic shift

• Circular shift

• Logical rotation

Which of the following is not a type of microoperation?

• Arithmetic

• Logical

• Control

• Data transfer

What does the micro-operation R3 <- R1 . R2 represent?

• R3 is ANDed with R1 and R2

• R1 is transferred to R2 and then to R3

• R3 stores the product of R1 and R2

• R3 stores the result of OR operation between R1 and R2

The operation R1 <- R2 indicates:

• R2 is transferred to R1

• R1 is complemented

• R1 receives the complement of R2

• R2 is complemented and transferred to R1