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

Software estimation, Software Estimation The statement of scope helps t...

Software Estimation The statement of scope helps the planner to established estimates using one or more method which fail into two wide categories: empirical modeling and decom

When can a user program execution be interrupted, When can a user program e...

When can a user program execution be interrupted? It won't be desirable to interrupt a program when an instruction is being executed and is in a state such as instruction decod

Explain about operand address calculation, Q. Explain about Operand Address...

Q. Explain about Operand Address Calculation? In actual machines effective address can be a register address, memory or I/O port address. Register reference instructions for ex

What is test factory, Rational Test Factory is a component-based testing to...

Rational Test Factory is a component-based testing tool that automatically produces TestFactory scripts according to the application's navigational structure. TestFactory is integr

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

Determine the bios function with one illustration, Determine the BIOS funct...

Determine the BIOS function with one illustration BIOS stands for Basic Input Output System. It is a set of programs to provide most basic low-level services like services keyb

Explain region, What is a Region? A Region is a continuous area of a p...

What is a Region? A Region is a continuous area of a process's address space (like text, data and stack). The kernel in a "Region Table" that is local to the process mainta

Explain about the voice recognition system, Explain about the Voice recogni...

Explain about the Voice recognition system These voice recognition systems recognise spoken words e.g. for disabled people who can't use keyboards where they speak commands rat

Demostrate the example of spreadsheet, Now consider the following spreadshe...

Now consider the following spreadsheet: Formula in cell D2 is = (B2/C2) Replicating this formula (by highlighting then drag down to D7) gives all the formulas needed in cell

Registers - processor, These will be independent of each other and will not...

These will be independent of each other and will not affect to each other, and so they can be fed into two different implementations units and run in parallel. The ability to remov

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