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

Techno hype - obstacle to information system, Techno hype - Obstacle to Inf...

Techno hype - Obstacle to Information System New technology has always been accompanied by a certain amount of euphoria that inevitably leads to unrealistic expectations place

What are the barcode readers, What are the Barcode readers These collec...

What are the Barcode readers These collect data from printed barcodes and allow automatic stock control in, for illustration, supermarkets.

Address translation with dynamic partition, Address translation with dynami...

Address translation with dynamic partition : Given figure shows the address translation process with dynamic partitioning, where the processor provides hardware support for

Work systems framework - information system, The Work Systems Framework - I...

The Work Systems Framework - Information System Adler writing in 1992 used the phrase 'stumbling backwards into the future' to describe the neglect organisations at that time

Write explanatory notes on microprocessor development system, Write explana...

Write explanatory notes on Microprocessor development system. Microprocessor development system: Computer systems have undergone many changes recently. Machines which once fi

Build a program to maintain his personal account, Aim: Build a program or a...

Aim: Build a program or application which gives an interface to the user to maintain his personal account for E-mails & should be able to work on the following applications. Des

What is branch folding, What is branch folding? The instruction fetch u...

What is branch folding? The instruction fetch unit has implemented the branch instruction concurrently with the implementation of other instructions. This technique is referred

Explain sr latch with nand gate, Explain SR Latch with NAND Gate? SR La...

Explain SR Latch with NAND Gate? SR Latch has two useful states: Set state, when output Q=1 and Q'=0. Reset state, when output Q=0 and Q'=1.Output Qand Q' are normally

Structure of 8086 cpu, 8086 microprocessor comprises two independent units:...

8086 microprocessor comprises two independent units:  1.  Bus Interface unit 2.  Execution unit Please refer to Figure below. Figure: The CPU of INTEL 8086 Microp

What is software engineering, Software engineering is:- The application...

Software engineering is:- The application of a disciplined engineering move towards to the development of software systems. A body of information and knowledge in software d

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