Buses - computer architecture, Computer Engineering

Assignment Help:

Buses:

  • Execution of 1 instruction need the following 3 steps to be performed by the CPU:

I.  Fetch the contents of the memory location pointed at by the computer system. The contents of this location are interpreted as an instruction to be executed. Therefore, they are holed up in the instruction register (IR). Symbolically, it can be written as:

1438_Buses.png

2. supposing that the memory is byte addressable .it increment the contents of the PC by 4, that is 1155_Buses1.png

3.   Perform the actions mention by the instruction stored in the IR

  • But, in cases wherever an instruction take place more than 1 word, steps 1 and 2 might be repeated as several times as essential to fetch the complete instruction.
  • 2 first steps are typically referred to as the fetch phase.
  • Step 3 constitutes  in the execution phase

 

29_Buses2.png

Most of the operation in step 1 to 3 denoted earlier can be carried out by performing one or more of the following function

However, in cases where an instruction takes place more than 1 word, steps 1 and 2 might be

repeated as several times as essential to fetch the complete instruction.

  • 2 first steps are usually referred to as the fetch phase.
  • Step 3 constitutes in the execution phase

Fetch the contents of a specific memory location and load them into a CPU Register

  • Hold up a word of data from a CPU register into a particular given memory location.
  • Transfer a word of data from 1 CPU register to another or to ALU.
  • Perform logic or arithmetic operation, and store the outcome in a CPU register.

 


Related Discussions:- Buses - computer architecture

Computer architecture, what is complex instruction set computer and reduce...

what is complex instruction set computer and reduced complex instruction set computer

Turning machine, procedure of turning machine operation on markov algorithm...

procedure of turning machine operation on markov algorithm

Determine any three restrictions that apply to class members, a. Determine ...

a. Determine any three restrictions that apply to class members. b. Is it possible for single class to be a friend of another class? Illustrate this using a suitable C++ program

What is meant by "method-wars" in programming, Before 1994 there were dissi...

Before 1994 there were dissimilar methodologies like Rumbaugh, Booch, Jacobson, and Meyer etc who followed their own notations to mould the systems. The developers were in a di

What are the different types of bios, The  most common types are the AWARD,...

The  most common types are the AWARD,AMI, AND phoenix

Give difference between top down and bottom up parsing, Give difference bet...

Give difference between top down parsing and bottom up parsing. Top down parsing: Specified an input string, top down parsing tries to derive a string identical to this by s

What is data in computers, Q. What is data in computers? In modern digi...

Q. What is data in computers? In modern digital computers data is signified in binary form by employing two symbols 0 and 1. These are known as binary digits or bits however da

Define briefly about extranet, Define briefly about Extranet. Extrane...

Define briefly about Extranet. Extranet: Extranet is Extension of an Intranet which makes the latter available to outside companies or individuals along with or without

Two layer artificial neural networks, Two Layer Artificial Neural Networks:...

Two Layer Artificial Neural Networks: However decision trees are whenever powerful they are as a simple representation scheme. Whereas graphical on the surface that they can b

What is fish bone diagram, What is Fish Bone Diagram? Or Explain Ishikawa D...

What is Fish Bone Diagram? Or Explain Ishikawa Diagram. Fish Bone Diagram is also known as Ishikawa Diagram or Cause and Effect Diagram. It is known as Fish Bone Diagram be

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