Structure and Role of the Processor

Register that holds the address of the next instruction to be executed

• Memory Data Register

• General Purpose Register

• Current Instruction Register

• Memory Address Register

• Program Counter Register

Register that is used for performing arithmetic functions

• Program Counter Register

• Status Register

• General Purpose Register

• Memory Address Register

• Memory Data Register

Register that contains the operator and the operand of the current instruction

• Memory Data Register

• Program Counter Register

• Status Register

• Memory Address Register

• Current Instruction Register

Register that holds the address of the memory location from which data will be read or to which data will be written

• Program Counter Register

• Status Register

• Memory Data Register

• Memory Address Register

• Current instruction Register

Register that is used to temporarily store data read from or written to memory

• Memory Data Register

• Status Register

• General Purpose Register

• Program Counter Register

• Memory Address Register

Register that contains bits that are set or cleared based on the result of on instruction

• General Purpose Register

• Program Counter Register

• Status Register

• Current Instruction Register

• Memory Data Register