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

What is full form of bdc session, What is full form of BDC Session? Bat...

What is full form of BDC Session? Batch Data Communication Session.

Temporary registers w and z, Why the temporary registers W and Z are named ...

Why the temporary registers W and Z are named so I mean we start from A,B,C,D,E then H and L coz H stands for higher bit nd L for lower bit of the address pointed by memory pointer

Operating characteristics for master-slave s-r flip-flop, Define the Operat...

Define the Operating Characteristics for master-slave S-R flip-flop? 1. Propagation Delay Time - is the interval of time required subsequent to an input signal has been applied

Power and energy, Ask questiPower and EnergyQuestion 4Consider a processor ...

Ask questiPower and EnergyQuestion 4Consider a processor that runs at 2.5 GHz and 1 Volt. When running a given CPU-bound program,the processor consumes 100 W, of which 20 W is leak

What are the different kinds of lock modes, What are the different kinds of...

What are the different kinds of lock modes? There are three types of lock modes:- Shared lock Exclusive lock. Extended exclusive list.

Illustrate layout of magnetic disk, Q. Illustrate Layout of Magnetic Disk? ...

Q. Illustrate Layout of Magnetic Disk? Head is a relatively small device capable of reading from or writing to a part of platter rotating beneath it. This gives rise to organiz

Define html, HTML is a Hyper text Markup Language and it is Scripting La...

HTML is a Hyper text Markup Language and it is Scripting Language

Define word/byte rotation and xor bit masking encryption, Define Word/byte ...

Define Word/byte rotation and XOR bit masking encryption technique to make sure secured transactions on the net? Word/byte rotation and XOR bit masking: In this process t

Name the appliances which are controlled by micro-processor, Name the appli...

Name the appliances which are controlled by micro-processor Many household appliances which are microprocessor-controlled do not have operating systems (for example microwave o

Control signals from control bus, Control Signals from Control Bus: A numb...

Control Signals from Control Bus: A number of the control signals are provided to control unit by the control bus. These signals are issued from outside the CPU. Some of these si

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages