As most of the processors have access to a huge memory space storing billions of values, it takes longer for the processor to access the data (and it gets complex, as we will see later). So, to speed up the processor operations, they contain small and fast internal memory storage units called registers.
Registers are built into the processor chip and are able to store the immediate values that are needed while performing calculations and data transfer from one place to another.
Registers may have different names, sizes, and functions, depending on the architecture. Here are some of the types that are widely used:
- General data registers: General data registers are registers that are used to save values or results from different arithmetic and logical operations.
- Stack and frame pointers: These are registers that are used to point to the beginning and the end of the stack.
- Instruction pointer/program counter: The instruction pointer is used to point to the start of the next instruction...