User Account

All Pages

about execution cycle, Basic Computer Science

Assignment Help:
One time a program is in memory it has to be executed. To do this, each instruction must be appeared at, decoded and acted upon in turn until the program is finished. This is accomplished by the use of what is termed the ''instruction execution cycle'', which is the cycle by which each instruction in revolve is processed. However, to make sure that the execution proceeds easily, it is also necessary to synchronize the activities of the processor.
To go on the events synchronized, the clock located within the CPU control unit is used. This creates regular pulses on the system bus at a specific frequency, so that each pulse is an equal time subsequent the last. This clock pulse frequency is related to the clock rate of the processor - the higher the clock speed, the shorter the time between pulses. Actions only take place when a pulse is detected, so that commands can be kept in time with each other across the entire computer unit.
The instruction execution cycle can be undoubtedly divided into three different components, which will now be appeared at in more detail.
Fetch Cycle
The fetch cycle gets the address required from memory, stores it in the instruction register, and moves the program counter on one so that it points to the next instruction.
Decode Cycle
in it, the control unit ensures the instruction that is now stored within the instruction register. It concludes which opcode and addressing mode have been used, and as such what actions need to be carried out so as to execute the instruction in question.
Execute Cycle
the definite actions which occur during the execute cycle of an instruction depend on both the instruction itself, and the addressing mode specified to be used to access the data that may be involved. Though, four main groups of actions do exist, which are discussed in full later on.

Related Discussions:- about execution cycle

Explain kinematics modeling in virtual reality, Question 1 How can you cre...

Question 1 How can you create surface with 3D Scanner in geometric modeling? Question 2 Explain kinematics modeling in virtual reality Question 3 Describe object hierarc

Example of flowcharting, Example of flowcharting: Example Problem s...

Example of flowcharting: Example Problem statement: To find out whether a given number is even or odd. Algorithm: Step 1 Start Step 2 INPUT the number n  Step 3

CAI, WHAT IS CAI ITS PITFALLS

WHAT IS CAI ITS PITFALLS

Sma* search - artificial intelligence, SMA* Search-Artificial intelligence ...

SMA* Search-Artificial intelligence IDA* search is good from a memory point of view. actually it may  be criticised for not using enough memory - utilizing  more memory may inc

Vector processing, what are the chrateristics of vector processing

what are the chrateristics of vector processing

Execute a command in operating system, Execute a command in operating syste...

Execute a command in operating system: In order to execute a command OS does the following steps:   It accepts a command from a user through mouse clicks or from t

Carrie Douglass Manager of the Broadway Book Shop, introduction

introduction

Visual basics, Assume that s is a string variable  that is supposed to con...

Assume that s is a string variable  that is supposed to contain a value to be converted to integer. Write a fragment of code that converts the value to integer variable  and displ

Adding macros to ms word 2010 for a particular format, Project Setting up ...

Project Setting up Microsoft Word 2010 to automatically handle as much as possible of the NDSU Graduate School requirements for a disquisition. Accessible from the Graduate Schoo

Working of web browser, Working of web Browser:   Internet is character...

Working of web Browser:   Internet is characterized by the Client Server Computing that consists of three basic components: The Web client which may be the web browser;

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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