What parts does cpu include?

What parts does cpu include?

CPU mainly includes two major components: arithmetic unit and controller. It also includes several registers and cache memories and the data, control and status buses that implement the connections between them.

The physical structure of the CPU includes operation logic components, register components, and control components.

Function introduction

1. Basic composition

Arithmetic unit: perform arithmetic or logical operations on the information transmitted from the computer.

Controller: Responsible for the execution of instructions in the computer CPU.

2. Physical structure

Operation logic component: Operation logic component can perform fixed-point or floating-point arithmetic operations, shift operations and logical operations, and can also perform address operations and conversions.

Register components: General-purpose registers can be divided into fixed-point numbers and floating-point numbers. They are used to save register operands temporarily stored during instruction execution and intermediate (or final) operation results. General-purpose registers are an important part of the CPU, and most instructions access general-purpose registers. The width of the general-purpose register determines the width of the data path inside the computer, and the number of its ports can often affect the parallelism of internal operations. Special registers are registers needed to perform some special operations.

Control component: The control component is mainly responsible for decoding instructions and issuing control signals for each operation to be performed to complete each instruction.

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