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

INTERRUPT METHOD, interrupt method in keypad operation coding using PIC16

interrupt method in keypad operation coding using PIC16

Sets and bags, Task: Sets and bags In mathematics, the notion of multis...

Task: Sets and bags In mathematics, the notion of multiset (or bag) is a generalisation of the notion of set. A bag is a special kind of container in which the items may be

Explain about the logical devices, Explain about the Logical Devices ...

Explain about the Logical Devices Locator, to indicate a position and/or orientation Pick, to select a displayed entity To input a single value in the space of re

How are the instructions executed and interpreted, Q. How are the instructi...

Q. How are the instructions executed and interpreted? All computers have a Unit which performs arithmetic and logical functions. This Unit is called as Arithmetic and Logic Uni

The different storage classes in c, What are the different storage classes ...

What are the different storage classes in C? Storage classes in C There are four storage classes in C: a. Automatic storage class: b. Register storage class: c

Explain opening files for reading only in c, Opening Files for Reading Only...

Opening Files for Reading Only : A data file is a file that you can open and read its contents visually - for example, C source files, .dat files, HTML etc - anything that look

Double negation, Double Negation : All parents are forever correcting ...

Double Negation : All parents are forever correcting their children for the find of double negatives, there we have to be very alert with them in natural language like: "He d

Determine about the virtual private networks, Virtual Private Networks (VPN...

Virtual Private Networks (VPN) In order to encrypt/decrypt all the communication network traffic that passes through the Internet or Intranet, a VPN uses software or hardware.

State the term- use a define function, State the term- Use a define functio...

State the term- Use a define function This is almost exactly the same approach as #define and -D compiler arg that C programs use. In your Verilog code, use a 'define to

Implement a priority queue, 1. Insert the following characters with their r...

1. Insert the following characters with their respective priorities (shown as ordered pairs) into an empty treap: (K, 17), (F, 22), (P, 29), (M, 10), (N, 15), (L, 26), (G, 13),

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages