Special CPU Registers

• Program Counter

Program Counter represent Logical Address in Memory. It's always display next Logical Address for the Instruction.

• Stack Pointer

• Instruction Register

• Memory Data Register

Memory Data Register represent the Value of the Instruction.

• Memory Address Register 

Memory Address Register represent Logical Address in Memory.

• Status Register & Flag

Over Flow 

Zero 

Negative

• Base Register

Base Register represents the Base Address in Program and display as a Base in CPU instruction in Memory. But Base are same in Memory.