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

How is transaction processing system affected, How is Transaction Processin...

How is Transaction Processing System affect performance of e-commerce sites? Transaction Processing System influences performance of e-commerce sites: Transaction-Processing

Process of interaction design, This unit starts by discussing the importanc...

This unit starts by discussing the importance of involving users in the interaction design process, explaining the reasons why user involvement can be useful, the different degrees

What types of calendars can you create with google calendar, What types of ...

What types of calendars can you create with Google Calendar? Personal calendars, like default calendar Public calendars, which others can access through the web

Computer representation for the negative integer, Everything stored on a co...

Everything stored on a computer can be represented as a string of bits. However, different types of data (for example, characters and numbers) may be represented by the same string

Define TII, TII stands for? Ans. TII stands for Table of incomplete ins...

TII stands for? Ans. TII stands for Table of incomplete instructions.

Illustration of a memory organization, Q. Illustration of a memory organiza...

Q. Illustration of a memory organization? Let's consider an illustration of a memory organization as displayed in Figure below in that main memory can store 32K words of 12 b

A universal shift register can shift in both the lef, #question.A universal...

#question.A universal shift register can shift in both the left-to-right and right-to-left directions, and it has parallel-load capability. Draw a circuit for such a shift register

Associative array processing, Consider that a list of record or a table is ...

Consider that a list of record or a table is stored in the memory and you wish to find some information in that particular list. E.g. the list comprises three fields as displayed b

Disadvantages of asynchronous and synchronous reset, What are disadvantages...

What are disadvantages of the asynchronous reset and synchronous reset? Disadvantages of asynchronous reset: Make sure that the release of the reset can arise within one c

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