Explain the term instruction cycle, Computer Engineering

Assignment Help:

Instruction Cycle

The instruction cycle consists of a series of steps required for the execution of an Instruction in a program. A distinctive instruction in a program is composed of two sections: Operand and Opcode. The Operand portion indicates the data on which the particular operation is to be done. (See below figure). The Operand portion is splitted into two portions: addressing mode and Operands. The addressing mode indicates the method of determining the addresses of the real data on which operation is to be executed and the operand portion is used like an argument by the method in determining actual address.

 

1171_Instruction Cycle.png

The Control Unit (CU), a part of Central Processing Unit (CPU) of computer fetches instructions in the program, one by one. The fetched Instruction is after that decoded by decoder which is a entity of the CU and the processor implements the decoded instructions. The outcome of execution is stored in Memory Buffer Register (MBR) (also known as Memory Data Register) for the moment. The general execution steps are shown in figure below.

941_Instruction Cycle 1.png

Figure: Instruction execution steps


Related Discussions:- Explain the term instruction cycle

What is a subroutine, What is a subroutine? A subroutine is a named, in...

What is a subroutine? A subroutine is a named, independent section of C code that performs a particular task and optionally returns a value to the calling program.

Synchronous, What are differences between Synchronous, Asynchronous and I s...

What are differences between Synchronous, Asynchronous and I synchronous communication? Sending data encoded in your signal needs that the sender and receiver are both by using

Explain busy hour calling rate in telephone traffic, With reference to tele...

With reference to telephone traffic, explain the terms BHCR. BHCR: Busy hour calling rate is explained as the average number of calls originated through a subscriber througho

Illustrate the purchase consummation activity, Illustrate the Purchase Cons...

Illustrate the Purchase Consummation activity? Purchase Consummation: This model lists three activities in the purchase consummation phase: • Receipt of product. • Pl

How is network examined by intranets, How is network examined by intranets,...

How is network examined by intranets, extranets and Internet? When more and more businesses seek to build their mission critical business solutions onto IP networks, networking

Types of validation controls provided by asp.net, Types of validation contr...

Types of validation controls provided by ASP.Net There are following types of validation controls provided by ASP.Net: 1. Required Field Validator 2. Compare Validator

Explain the working of a two input EX-OR gate, With relevant logic diagram ...

With relevant logic diagram and truth table explain the working of a two input EX-OR gate. Ans. 2-Input EX-OR Gate: An EX-OR or Exclusive gate recognizes words that have an od

What is php, The PHP Hypertext Pre processor is a programming language that...

The PHP Hypertext Pre processor is a programming language that permits web developers to make dynamic content that interacts with databases. PHP is basically used for developing we

Develop a menu driven program, Q.  Develop a Menu driven program with follo...

Q.  Develop a Menu driven program with following menu: a.  Binary to Decimal b.  Binary to Octal c.  Binary to Hexadecimal d.  Exit (Put proper validation for input

Describe the types of flip-flops and latches, Describe the types of flip-fl...

Describe the types of flip-flops and latches. Flip-flops are of two types as illustrated below: a. Positive edge triggered b.  negative edge triggered Latches are

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd