Explain relative addressing scheme, Computer Engineering

Assignment Help:

Q. Explain Relative Addressing Scheme?

In this addressing technique the register R is the program counter (PC) which contains the address of current instruction being executed. Operand field A comprises the displacement (negative orpositive) of adata or instruction with respect to current instruction. This addressing scheme has benefits if memory references are nearer to current instruction being executed. (Please refer to the Figure below). 

896_Explain Relative Addressing Scheme.png

Let's give an illustration of Index, Base and Relative addressing techniques. 

Illustration 1: What would be the effective address and operand value for following LOAD instructions?

(i)    LOAD   IA   56 R1 Where IA signifies index addressing and R1 is index register and 56 is the displacement in Hexadecimal.

(ii)   LOAD BA 46 B1 Where BA signifies base addressing and B1 is base register and46 is the displacement specified in instruction in Hexadecimal notation.

(iii)  LOAD RA 36 Where RA signifies relative addressing. 

 The values of memory and registers is given below:

1500_Explain Relative Addressing Scheme1.png

The values are displayed in the below table:

597_Explain Relative Addressing Scheme2.png


Related Discussions:- Explain relative addressing scheme

Explain transport layer of osi model, Explain Transport Layer of OSI Mode...

Explain Transport Layer of OSI Model. The transport layer utilizes the services provided through the network layer, as best path selection and logical addressing, to give end

Conversion of decimal number 82.67 to its binary equivalent, Conversion of ...

Conversion of Decimal number 82.67 to its Binary Equivalent Ans. Firstly see the integer part 82 and determine its binary equivalent  as The Binary equivalent is (101001

What is hysteresis, What is hysteresis? Hysteresis is well known in fer...

What is hysteresis? Hysteresis is well known in ferromagnetic materials. When an external magnetic field is applied to a Ferro magnet, the atomic dipoles align themselves with

Describe the interpretation features of vba, VBA is licensed to Microsoft a...

VBA is licensed to Microsoft and this compatible with and only Microsoft products. Code written is compiled by an intermediate language known as P-code and this is stored in hostin

What is external procedures, Q. What is External Procedures? These proc...

Q. What is External Procedures? These procedures are written as well as assembled in separate assembly modules and afterwards linked together with the main program to form a bi

Defines a macro, Defines a macro Defines a macro with the given name, h...

Defines a macro Defines a macro with the given name, having as its value the given replacement text. After that (for the rest of the current source file), wherever the preproce

Describe about physical systems, Q. Describe about Physical Systems? Ph...

Q. Describe about Physical Systems? Physical Systems are tangible entities which may be dynamic or static.   Computer Systems, Buildings,Vehicles etc. are illustrations of p

Sigmoid units, Sigmoid units: Always remember that the function inside...

Sigmoid units: Always remember that the function inside units take as input the weighted sum, S and of the values coming from the units connected to it. However the function i

How the information can be stored, In a RAM, information can be stored ? A...

In a RAM, information can be stored ? Ans. RAM is used by the user, number of times.

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