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 exception, Define exception. The term exception is used to trans...

Define exception. The term exception is used to transfer to any event that causes an interruption

Difference b/w non-relocatable and relocatable programs, Differentiate bet...

Differentiate between non-relocatable and relocatable programs. A non-relocatable program is one which cannot be executed in any memory area other than the area starting at i

What is the purpose of cdata in an xml document, Question: (a) What is...

Question: (a) What is the purpose of CDATA in an XML document? Explain your answer using extract codes. (b) Consider the following definition for an address element:

Standards for scan codes, Q. Standards for scan codes ? There are 3 sta...

Q. Standards for scan codes ? There are 3 standards for scan codes: Mode1 (83-key keyboard PC, PC-XT) and Mode2 (84-key AT keyboard) and Mode3 (101-key keyboard onwards). In Mo

Risks by customer perspective in electronic payment system, What are the ri...

What are the risks by customer's perspective in Electronic Payment Systems? Risks within Electronic Payment Systems: Through the customer's perspective are as follows:

superscalar pipelining, Put an "X" next to any of the following that are R...

Put an "X" next to any of the following that are RISC CPU characteristics that show diffrence between RISC from CISC a) has limited addressing modes b) used in Motorola 6000 pro

Give introduction to object oriented analysis and design, Introduction to o...

Introduction to object oriented Analysis & design: tools In case of OOAD, Unified Modelling Language (UML) is a well accepted language. It is used for constructing, visualizin

Amdahls law - calculate speed up performance, To calculate speed up perform...

To calculate speed up performance various laws have been developed. These laws are discussed here. Amdahl's Law Remember, the speed up factor helps us in knowing the relat

What is critical section problem, What is critical section problem? A ...

What is critical section problem? A race condition at data item occurs when many processes simultaneously update its value data consistency, needs that only one process should

What is a heap, What is a heap? The heap is an area of memory that is ...

What is a heap? The heap is an area of memory that is dynamically allocated. As a stack, this may grow and shrink throughout runtime. Not like a stack, a heap is not LIFO show

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages