Define word (dw)- assemblers directive-microprocessor, Assembly Language

Assignment Help:

DW : Define Word:-

The DW directive serves the same purposes as the DB directive, but now it makes the assembler  which reserves thenumber ofmemory words (16-bit) instead of bytes. Some instance aregiven to explain this directive.

Example :

WORDS           DW      1234H, 4567H, 78ABH, 045CH,

This  makes the assembler reserve 4 words in memory (8  bytes), and by initializing the words with the specified values in the given statements. At the time of initialisation, the lower bytes are stored at the lower memory addresses, whereas the upper bytes are stored at the higher addresses. Another option of the DW directive can be explained with the DUP operator.

WDATA            DW 5 DUP (6666H)

This statement reserves five words, for example10-bytes of memory for a word label WDATA and initialises all the word locations having 6666H.


Related Discussions:- Define word (dw)- assemblers directive-microprocessor

MIPS Assembly, Need help with 2 homework assignments

Need help with 2 homework assignments

Fourth generation microprocessor, Fourth  Generation Microprocessor : T...

Fourth  Generation Microprocessor : The single chip 32-bit microprocessor was introduced in 1981 by Intel as iAPX 432. The other 4th generation  microprocessors  were;  Hewlett

Program to find out positive and negative numbers-assembly, Program : W...

Program : Write an assembly program to find out the number of positive numbers and negative numbers from a given series of signed numbers. Solution : Take the i th num

Assembly help, use">http://www.raritanval.edu/uploadedFiles/faculty/cs/full...

use">http://www.raritanval.edu/uploadedFiles/faculty/cs/full-time/Brower/CISY256/2013Spring/CISY256%20Assembly%20Project.pdf use microsoft visual 2010 and http://www.asmirvine.c

String manipulation instruction-microprocessor, String Manipulation Instruc...

String Manipulation Instruction A series of words or data bytes are available in memory at consecutive locations, to be mention to individually or collectively, are known as by

Program for declare the threshold, 1. Start your program at address $8500. ...

1. Start your program at address $8500. To do this you need to inform the assembler, through the EQU and ORG assembler directives, that you want your program to start at $8500. Thi

Evolution of microprocessor , EVOLUTION OF MICROPROCESSOR : ...

EVOLUTION OF MICROPROCESSOR : The digital circuits and systems may be broken into two part: 1) Sequential Circuit and 2) Combinational Circuits     Norm

Adc-arithmetic instruction-microprocessor, ADC: Add with Carry:- This instr...

ADC: Add with Carry:- This instruction performs the similar operation a like ADD instruction, but adds the carry flag bit (which might be set as a result of the previous calculatio

8086 program, program to arrange a given set of numbers in descending order...

program to arrange a given set of numbers in descending order

Program, 2. Write a program to separate out positive and negative numbers f...

2. Write a program to separate out positive and negative numbers from a given series of 16-bit hexadecimal numbers.

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