Direct addressing and immediate addressing mode , Computer Engineering

Assignment Help:

Direct Addressing and  Immediate Addressing mode - computer architecture:

 Immediate Addressing:

It is the simplest form of addressing. Here, the operand is itself given in the instruction. This mode is used to define constant or set primary values of variables. The benefit of this mode is that no memory reference rather than instruction fetch is needed to obtain operand. The disadvantage of it is that the size of the number is restricted to the size of the address field, in which most of the instruction sets is small compared to word length.

Direct Addressing:

Effective address of the operand is given in the address field of the instruction in the case of direct addressing mode. It need one memory reference to read the operand from the given location and provides only a restricted address space. Length of the address field is typically less than the word length.

For Example: Move P, Ro, Add Q, Ro P and Q are the address of operand. Indirect 

 

 


Related Discussions:- Direct addressing and immediate addressing mode

Benefits of traditional hard disks and cd-rom, Q. Benefits of traditional h...

Q. Benefits of traditional hard disks and CD-ROM? CD-ROM is suitable for distribution of large amounts of data to a large number of users. CD-ROMs are a general medium these da

What are different adder circuits you studied, Half Adder (for addition of ...

Half Adder (for addition of two bits) Full Adder (for addition of three bits) Carry look ahead adder Carry save adder Carry propagate adder

Illustrate the encryption and decryption methods, Illustrate the Encryption...

Illustrate the Encryption and Decryption methods One of the best method of ensuring security is to change the form of communication. Let the messages be encoded in such a patte

Make a generalized program that accepts a number and base, Q. Make a gener...

Q. Make a generalized program that accepts a number & base, convert it into the given base. Perform necessary validations.

Determine the importance of computer hardware, Determine the importance of ...

Determine the importance of computer Hardware Hardware forms the greatest asset of the company, but it reaches obsolescence very quickly. Normally, it is said that every six mo

What is wireless transmission systems, What are wired and wireless transmis...

What are wired and wireless transmission systems? Transmission Systems: Modern type long distance transmission systems can be placed in three wide categories: 1. Radio Sy

Explain the working of a binary counter, In binary counter the flip flop of...

In binary counter the flip flop of lowest order position is complemented with each pulse. This means that JK input position must be maintained with logic one

What are the user interfaces of interactive lists, What are the user interf...

What are the user interfaces of interactive lists? If you require the user to communicate with the system during list display, the list must be interactive.  You can describe

Commutativity of connectives, Commutativity of Connectives : In this y...

Commutativity of Connectives : In this you will be aware of the fact that some arithmetic operators that have a property which it doesn't matter that way around you give the o

cell array to a spreadsheet, The xlswrite function can write the contents ...

The xlswrite function can write the contents of a cell array to a spreadsheet.  A manufacturer kepts information on the weights of some parts in a cell array.  Every row stores the

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