CPU Data Processing Quiz

For data registers (in the CPU), which of the following statements is correct:

• Contains temporary data or intermediate results

• Contains addresses of memory locations that carry data

• Contains both data and the addresses of operands in calculation instructions

• Contains data related to command control information

For a machine code instruction consisting of 2 operands, which of the following statements is correct:

• Two source operands

• One operand is both the source operand and the destination operand, the other operand is the source operand

• Two destination operands

• One source operand, one destination operand

Considering the process of writing (storing) data of the CPU, the order of execution is:

• Address -> Memory compartment -> Register set

• Address -> Register set -> Memory compartment

• Register set -> Memory compartment -> Address

• Register set -> Address -> Memory compartment

For registers (in the CPU), which of the following statements is correct:

• Contains the status of peripheral devices

• All registers are programmable

• The command register contains the command code that has just been processed

• There are types of registers that cannot be programmed

Which of the following is not a part of the microprocessor?

• System Bus (System Bus)

• Controller (CU)

• Arithmetic and logic unit (ALU)

• Registers (RF)

Considering the data processing stage of the CPU, the order of execution is:

• Perform math operations -> Data registers -> Arithmetic and logic unit (ALU)

• Perform math operations -> Arithmetic and logic unit (ALU) -> Data register

• Arithmetic and logic unit (ALU) -> Data register -> Perform mathematical operations

• Arithmetic and logic unit (ALU) -> Perform mathematical operations -> Data register

For DP - Data Pointer data pointer registers (in CPU), which of the following statements is correct:

• Holds the address of the next instruction to be executed

• Contains data of the command being executed

• Contains the address of the data memory location that the CPU wants to access

• Contains the code being executed

For machine code instructions, which of the following statements is correct:

• The operand indicates the operation to perform

• There can be many instruction codes in a machine instruction

• The instruction code in the machine instruction is unique

• Operands in machine instructions are unique

Considering the instruction decoding step of the CPU, the order of execution is:

• Control block -> Command register -> Decoding -> Control signals

• Command register -> Control block -> Control signal -> Decoding

• Command register -> Control block -> Decode -> Control signal

• Command register -> Decode -> Control block -> Control signal

For ALU (in CPU), which of the following statements is false:

• Perform bit shift

• Performs comparison of two operands

• Perform addition and subtraction

• Perform square root operation