Fetch-Execute cycle. Memory Read operation Read from memory.

Slides:

Advertisements

Similar presentations

The CPU The Central Presentation Unit What is the CPU?

Advertisements

The Fetch – Execute Cycle

Memory. Memory.

Computer Architecture and the Fetch-Execute Cycle

The Fetch Execute Cycle

Central Processing Unit

CS364 CH16 Control Unit Operation

Control path Recall that the control path is the physical entity in a processor which: fetches instructions, fetches operands, decodes instructions, schedules.

Arithmetic Logic Unit (ALU)

The Microprocessor and its Architecture

Damian BrowneLuis PabonPedro Tovar The operation of a computer in executing a program consists of a sequence of Instruction Cycles, with one machine.

The CPU. Parts of the CPU Control Unit Arithmetic & Logic Unit Registers.

LAB 9 Simulator Chap 14 REED. Datapath Simulator accompanying the text is a datapath simulator a.k.a. the Knob & Switch Computer developed by Grant Braught.

The processor and main memory chapter 4, Exploring the Digital Domain The Development and Basic Organization of Computers.

The central processing unit and main memory chapter 4, Exploring the Digital Domain The Development and Basic Organization of Computers.

The Computer Processor

Computer Organization and Architecture

Lecture 13 - Introduction to the Central Processing Unit (CPU)

CPU Fetch/Execute Cycle

SAP1 (Simple-As-Possible) Computer

Computer Systems 1 Fundamentals of Computing The CPU & Von Neumann.

Lecture 8 Presented By Dr. Shazzad Hosain Asst. Prof. EECS, NSU.

Computer Science 210 Computer Organization The von Neumann Architecture.

Computer Architecture and the Fetch-Execute Cycle

Microcode Source: Digital Computer Electronics (Malvino and Brown)

The CPU Central Processing Unit. 2 Reminder - how it fits together processor (CPU) memory I/O devices bus.

CPU Design. Introduction – The CPU must perform three main tasks: Communication with memory – Fetching Instructions – Fetching and storing data Interpretation.

Model Computer CPU Arithmetic Logic Unit Control Unit Memory Unit

DH2T 34 – HNC Computer Architecture 1 Lecture 14 The Fetch-Decode-Execute Cycle [1]. © C Nyssen/Aberdeen College 2003 All images © C Nyssen/Aberdeen College.

Fetch-execute cycle.

Computer Systems - Registers. Starter… Discuss in pairs the definition of the following Control Unit Arithmetic and Logic Unit Registers Internal clock.

D75P 34 – HNC Computer Architecture

Computer Structure & Architecture 7b - CPU & Buses.

CSE 241 Computer Organization Lecture # 8 Ch. 7 Control Unit Dr. Tamer Samy Gaafar Dept. of Computer & Systems Engineering.

COMPILERS CLASS 22/7,23/7. Introduction Compiler: A Compiler is a program that can read a program in one language (Source) and translate it into an equivalent.

System Unit Working of CPU. The CPU CPU The CPU CPU stands for central processing unit. it is brain of computer It is most important component of the.

Dale & Lewis Chapter 5 Computing components

GROUP 2 CHAPTER 16 CONTROL UNIT Group Members ๏ Evelio L. Hernandez ๏ Ashwin Soerdien ๏ Andrew Keiper ๏ Hermes Andino.

Processor Organization and Architecture Module III.

Chapter 20 Computer Operations Computer Studies Today Chapter 20.

Lec 4-2 Five operations of the machine cycle Fetch- fetch the next program instruction from memory. (PC+1); instruction to IR Decode- decode the instruction.

3.1.4 Hardware a. describe the function and purpose of the control unit, memory unit and ALU (arithmetic logic unit) as individual parts of a computer;

OCR GCSE Computer Science Teaching and Learning Resources

Systems Architecture Keywords Fetch Execute Cycle

Von Neumann architecture

SAP1 (Simple-As-Possible) Computer

Chapter 10: Computer systems (1)

Lecture 13 - Introduction to the Central Processing Unit (CPU)

Computer Science 210 Computer Organization

Lecture on Microcomputer

Five Execution Steps Instruction Fetch

William Stallings Computer Organization and Architecture

Teaching Computing to GCSE

System Architecture 1 Chapter 2.

The fetch-execute cycle

Functional Units.

COMS 161 Introduction to Computing

CPU Key Revision Points.

The Little Man Computer

Fundamental Concepts Processor fetches one instruction at a time and perform the operation specified. Instructions are fetched from successive memory locations.

THE FETCH-EXECUTE CYCLE.

GCSE OCR 1 The CPU Computer Science J276 Unit 1

THE FETCH-EXECUTE CYCLE.

Objectives Describe common CPU components and their function: ALU Arithmetic Logic Unit), CU (Control Unit), Cache Explain the function of the CPU as.

Instruction execution and ALU

Computer Architecture

Computer Science. The CPU The CPU is made up of 3 main parts : Cache ALU Control Unit.

Presentation transcript:

Fetch-Execute cycle

Memory Read operation Read from memory

Main Memory MAR MDR Control Unit ALU Other registers Electronic Clock Clock pulses Address bus Data bus Control bus PC 1 The Program Counter (PC) holds the address of the next instruction

Main Memory MAR MDR Control Unit ALU Other registers Electronic Clock Clock pulses Address bus Data bus Control bus PC 1 The contents of the PC are copied to the Memory Address Register (MAR)

Main Memory MAR MDR Control Unit ALU Other registers Electronic Clock Clock pulses Address bus Data bus Control bus PC 1 Memory address to be accessed is placed onto the address bus

Main Memory MAR MDR Control Unit ALU Other registers Electronic Clock Clock pulses Address bus Data bus Control bus PC 1 The control bus sends a read signal >>read>>

Main Memory MAR MDR Control Unit ALU Other registers Electronic Clock Clock pulses Address bus Data bus Control bus PC 1 The contents of the memory location are passed along the data bus to the Memory Data Register (MDR)

Main Memory MAR MDR Control Unit ALU Other registers Electronic Clock Clock pulses Address bus Data bus Control bus PC 1 The PC is incremented ready for the next instruction 2

Memory Write operation Write to memory

Main Memory MAR MDR Control Unit ALU Other registers Electronic Clock Clock pulses Address bus Data bus Control bus PC 2 Data is placed onto the data bus

Main Memory MAR MDR Control Unit ALU Other registers Electronic Clock Clock pulses Address bus Data bus Control bus PC 2 Memory address to be written to is placed onto the address bus

Main Memory MAR MDR Control Unit ALU Other registers Electronic Clock Clock pulses Address bus Data bus Control bus PC 2 A write signal is sent along the control bus >>write>>

Main Memory MAR MDR Control Unit ALU Other registers Electronic Clock Clock pulses Address bus Data bus Control bus PC 2 The data is transferred to the destination in memory

Main Memory MAR MDR Control Unit ALU Other registers Electronic Clock Clock pulses Address bus Data bus Control bus PC 2 The PC is incremented 3