What is instruction register, Computer Engineering

Assignment Help:

Q. What is Instruction Register?

Instruction Register (IR): Here instructions are loaded before execution. Comments on figure above are as below:

All representations are in decimals. (In real machines the representations are in Binary).
Number of Memory Locations = 16
Size of every memory location = 16 bits = 2 Bytes (Compare with contemporary machines word size of 16, 32, 64 bits)
So size of this sample memory = 16 words (Compare it with actual memory) size that is 128 MB, 256 MB, 512 MB, or more).
In the diagram MAR is pointing to location 10.
Last operation carried out was 'read memory location 10' that is 65 in this. So the Contents of MBR is also 65.

Related Discussions:- What is instruction register

Define interrupt processing, Q. Define Interrupt Processing? On complet...

Q. Define Interrupt Processing? On completion of execution of an instruction machine checks whether there is any pending interrupt request for interrupts which are enabled. If

Drawbacks to resolution theorem, Drawbacks to resolution theorem: Thus...

Drawbacks to resolution theorem: Thus the underlining here identifies some drawbacks to resolution theorem proving: It only works for true theorems that can be expresse

Write examples of declarations of external variables, Examples of declarati...

Examples of declarations of external variables that are not definitions: extern char stack[10]; extern int stkptr; These declarations tell the compiler that the variab

What do you mean by underflow and overflow of data, What do you mean by und...

What do you mean by underflow and overflow of data? Underflow and overflow of data: When the value of the variable is either too long or too small for the data type to hold,

Truth tables, Any function can be expressed in a truth table.A truth table ...

Any function can be expressed in a truth table.A truth table lists all possible combinations ofinputs and gives the output produced in eachcase.Truth tables must include all combin

What do you mean by e-brokerage, What do you mean by e-brokerage? E-bro...

What do you mean by e-brokerage? E-brokerage is an investment house which permits you to buy and sell stocks and acquire investment information through its Web site. E-comme

What is the significance of asp.net routing, ASP.NET MVC uses ASP.NET routi...

ASP.NET MVC uses ASP.NET routing, to map incoming browser requests to controller action process. ASP.NET Routing makes use of route table. Route table is formed when your web appli

How to apply color and style, Q. How to Apply Color and Style? 1. In f...

Q. How to Apply Color and Style? 1. In first text description layout cell, select heading text from the word "Fly" through the word "Mountains." 2. In Property inspector,

Software engineering, #quest2. Each time a defect gets detected and fixed, ...

#quest2. Each time a defect gets detected and fixed, the reliability of a software production..

What are interacting processes, What are interacting processes? Intera...

What are interacting processes? Interacting processes: The concurrent processes executing into the operating system are cooperating or interacting processes if they can be af

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages