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 the memory transfer process, Q. Explain the Memory Transfer process...

Q. Explain the Memory Transfer process? Memory Transfer Transfer of information from memory to outside world which implies I/O Interface is known as a read operation. Tra

:P, My name is mrs flo and i apporve dubstep, do you apporve it?

My name is mrs flo and i apporve dubstep, do you apporve it?

Write a perl script, Write a PERL script which takes a file named input.txt...

Write a PERL script which takes a file named input.txt as an input and processes it. The input file has the following format: firstname lastname: pass/fail score%. A sample input f

Describe independent loops in fortran, Q. Describe Independent Loops in for...

Q. Describe Independent Loops in fortran? HPF offers extra opportunities for parallel execution by employing the INDEPENDENT directive to declare the iterations of a do-loop is

Explain assembly program execution, Q. Explain Assembly program execution? ...

Q. Explain Assembly program execution? An assembly program is written according to a strict set of rules. A word processor or editor is used for keying an assembly program in t

Explain services of application layer., Explain services of Application Lay...

Explain services of Application Layer. Application Layer: As the highest layer within the OSI reference model, the application layer gives services to the users of OSI env

Use of instruction register and program counter, Use of instruction registe...

Use of instruction register and program counter: Q. What is the use of instruction register (IR) and program counter (PC)? Ans: The instruction register (IR) holds the inst

Design a BCD to excess 3 code converter using NAND gates, Design a BCD to e...

Design a BCD to excess 3 code converter using minimum number of NAND gates. Hint: use k map techniques. Ans. Firstly we make the truth table: BCD no

Differentiate between sequential access and direct access, Question: (a...

Question: (a) Briefly explain how the functionality of the WWW has been enhanced, after its birth at CERN site. Use examples to illustrate your answer. (b) Many modern com

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