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

Cache-only memory access model (coma), Cache-Only Memory Access Model (COMA...

Cache-Only Memory Access Model (COMA) As we have discussed previous, shared memory multiprocessor systems may use cache memories with each processor for deducting the execution

Vertical alignment of fields one below the other, Which Command permits for...

Which Command permits for vertical alignment of fields one below the other. UNDER Command is used ofr vertical alignment.

What are the disadvantages of public key cryptography, What are the disadva...

What are the disadvantages of Public Key Cryptography? Disadvantages of Public Key Cryptography are as given below: a) It is used to encrypt a secret key that is used to e

Threads model - parallel programming model, In this model a one process can...

In this model a one process can have multiple, concurrent implementations paths. The major programs are scheduled to run by the native operating system. It loads and obtains all th

Explain the register transfer language, Explain the Register transfer langu...

Explain the Register transfer language Register transfer language means there must be data flow between two registers and logic is in between them for end registers data must f

The current image in gimp, How do we merge an image from a file to the curr...

How do we merge an image from a file to the current image in GIMP? Ans) Use "File then Open as Layers" menu command or just take the file to a window and drop it there. The file w

Project, the project database is avilable?

the project database is avilable?

C, "Super ASCII", if it contains the character frequency equal to their asc...

"Super ASCII", if it contains the character frequency equal to their ascii values. String will contain only lower case alphabets (''a''-''z'') and the ascii values will starts from

Input output in assembly program, Q. Input output in assembly program? ...

Q. Input output in assembly program? Software interrupt is a call to an Interrupt servicing program situated in the operating system. Generally the input-output routine in 8086

Four types of consumer oriented applications of e-commerce, What are the fo...

What are the four types of consumer oriented applications of E-commerce? Discuss them briefly. Four types of Consumer Oriented applications in E-Commerce are as follows: 1

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages