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

Cad cam, Define explicit, implicit and parametric representation and what a...

Define explicit, implicit and parametric representation and what are their advantages?

Write a brief note on firewalls, Question 1 Explain the TCP/IP protocol la...

Question 1 Explain the TCP/IP protocol layers Question 2 Write a note Fiber Distributed Data Interface (FDDI) Question 3 Discuss on File Transfer Protocol (FTP)

We will compare the performance of a vector processor, In this problem we w...

In this problem we will compare the performance of a vector processor with a system that contains a scalar processor and a GPU-based coprocessor. In the hybrid system, the host pr

Meaning of primary data, Problem 1 Research designs have a critical and...

Problem 1 Research designs have a critical and directive role to play in the research process. Explain the meaning of research design. Describe the various types of research de

Coaxial cables, Coaxial Cables: Another metallic transmission medium w...

Coaxial Cables: Another metallic transmission medium which offers a large bandwidth, is the coaxial cable. Such cables consist of an outer protective shell made of copper tube

Artificial intelligence-intelligence performanc of computer , "Just how are...

"Just how are we capable to get a computer to performe intelligent tasks?" One thing to answer the question is to tell that: Logic generate a science out of many forms of re

Types of animation in multimedia, Types of animation in multimedia

Types of animation in multimedia

Define and explain flow chart with an example, Question 1 Define and expla...

Question 1 Define and explain flow chart with an example Question 2 Write an algorithm to print all even numbers in descending order and draw the flowchart Question 3 Explain

Algorithms and psuedocodes, write an algorithm and psuedo code for the oper...

write an algorithm and psuedo code for the operation of the cramer`s rule

Communications programs , Communications Programs : By communications prog...

Communications Programs : By communications programs, we mean those programs which allow a computer to communicate via a transmission cable to another electronic device. Here we d

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