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

Describe message passing model, Q. Describe Message Passing Model? In ...

Q. Describe Message Passing Model? In message-passing model there be a set of tasks which employ their own local memories at the time of computation. Many tasks may inhabit on

Print a prompt, When your shell is waiting for input from the user, it shou...

When your shell is waiting for input from the user, it should first print a prompt. The prompt should consist of the current working directory followed by the _>_ character. Here i

Basic tradeoff of concerns for instruction set design, Q. Basic Tradeoff of...

Q. Basic Tradeoff of concerns for instruction set design? Basic Tradeoff: Smaller instruction (less space) vs. desire for more powerful instruction repertoire. Generally p

Webforms application and to an mvc application, What is the difference amon...

What is the difference among adding routes, to a webforms application and to an mvc application? Ans) To add routes to a webforms application, we use MapPageRoute() process of

By which analog signal combine with a carrier frequency, Analog signals can...

Analog signals can be              by combining them with a carrier frequency (A)  Carried                                      (B)  Transported (C)  Multiplexed

How do we save a selected sub-image to a file in gimp, Use "Edit->Paste As-...

Use "Edit->Paste As->New Image" menu command or press Ctrl-Shift-V key combination, then save newly created image.The script-fu-selection-to image can also be used to cut a selecti

Write a c++ program to explain three specific classes, Make a base class ca...

Make a base class called figure that store the dimensions of several geometrical objects and compute their areas. Explain a function set_dim( ),a standard member  function and show

Explain vector reduction instructions, Vector reduction Instructions Wh...

Vector reduction Instructions When operations on vector are being decreased to scalar items as a result then these are vector reduction instructions. These instructions are ref

What is throughput?, If the throughput scales upward as time progresses and...

If the throughput scales upward as time progresses and the number of Vusers enhance, this showing that the bandwidth is sufficient. If the graph were to remain relatively flat as t

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