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

High level expertise, The most useful feature of an expert system is the h...

The most useful feature of an expert system is the high level expertise it provides to aid in problem solving. This expertise can represent the best thinking of the top

Control signal, justify whether the control signal passes through same bus ...

justify whether the control signal passes through same bus as data ,address and instruction or not?

Define memory cell, Define memory cell? A memory cell is capable of sto...

Define memory cell? A memory cell is capable of storing single bit of information. It is usually organized in the form of an array

How 74147 series ttl can be used as a decimal-to-bcd encoder, Illustrate ho...

Illustrate how 74147 series TTL can be used as a decimal-to-BCD encoder. Ans. Available IC in 74 series is 74147 that is a priority encoder. Such IC has active low inp

Single program multiple data, SPMD is actually a "high level" programming m...

SPMD is actually a "high level" programming model that can be built upon any combination of the previously mentioned parallel programming models. A single program is executed by al

Clarify the operation of iret instruction, Clarify the operation of IRET in...

Clarify the operation of IRET instruction.  What memory locations comprise the vector for an INT 34 instruction? Interrupt return (IRET) instruction is used only with hardware

Computer networks, distributed & centralized system in computer network

distributed & centralized system in computer network

Building is into our operational processes, Building IS into our operationa...

Building IS into our operational processes - Information System Although information systems are becoming increasingly prevalent they are not always the correct solution to ev

Explain rudimentary file formats, Q. Explain rudimentary file formats? ...

Q. Explain rudimentary file formats? FTP only understands two rudimentary file formats. It classifies every file either as a text file or a binary file. A text file comprise a

Assembly 8086 program that computes the minimum and maximum, Write a progra...

Write a program that computes the minimum and maximum of elements in an array in Assembly 8086.

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