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

Why have companies gone ecommerce, One of these objectives is related to co...

One of these objectives is related to costs. By going e-commerce, consumers will be able to submit their purchase requests to the sellers without paying a visit to their place. Thi

What is a modem, What is a Modem? Modems are fundamentally used to int...

What is a Modem? Modems are fundamentally used to interface digital circuits to transmit information on analogue channels as telephone systems. Modem is from modulator-demodul

What is scsi, What is SCSI? Ans: It is the acronym for small computer s...

What is SCSI? Ans: It is the acronym for small computer system interface. It refers to a standard bus explained ANSI. Devices such as disks are linked to a computer via 50-wire

Payment, how can get payment

how can get payment

Explain direct broadcast & limited broadcast, Explain Direct broadcast & li...

Explain Direct broadcast & limited broadcast. Broadcast is a method to send a packet to all the stat ions on an exact network at once. Broadcast systems permit the possibility

What are intelligent agents, Q. What are intelligent agents? What tasks wil...

Q. What are intelligent agents? What tasks will they perform? ANSWER: Intelligent agents are software that helps you, or operate on your behalf, in performing repetitive comput

Compute the frequency of the radiation, Q. The work function of a metal sur...

Q. The work function of a metal surface is 6.626 X 10-19 joule. Compute the frequency of the radiation? Work function                                     W = hγ o The fre

What is boyce codd normal form, A relation schema R is in BCNF with respect...

A relation schema R is in BCNF with respect to a set F of functional dependencies if for all functional dependencies in F+ of the form a->b, where a and b is a subset of R, at leas

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