Write a program in assembly language to swap two numbers – IGNOU MCA Assignment 2017 – 18

By | December 6, 2017

MASTER OF COMPUTER APPLICATIONS

Course Code : MCSL-017
Course Title : C and Assembly Language Programming (Lab Course)
Assignment Number : MCA(1)/L-017/Assignment/17-18
Maximum Marks : 50
Weightage : 25%

Write a program in assembly language to swap two numbers – IGNOU MCA Assignment 2017 – 18

Code:-

DATA SEGMENT
NUM1 DB 9H
NUM2 DB 7H
ENDS

CODE SEGMENT
ASSUME DS:DATA CS:CODE
START:
MOV AX,DATA
MOV DS,AX

MOV AL,NUM1
MOV BL,NUM2

XCHG AL,NUM2
XCHG BL,NUM1

MOV AH,4CH
INT 21H
ENDS
END START

[codesyntax lang=”asm”]

DATA SEGMENT
NUM1 DB 9H
NUM2 DB 7H
ENDS

CODE SEGMENT
ASSUME DS:DATA CS:CODE
START:
MOV AX,DATA
MOV DS,AX

MOV AL,NUM1
MOV BL,NUM2

XCHG AL,NUM2
XCHG BL,NUM1

MOV AH,4CH
INT 21H
ENDS
END START

[/codesyntax]

 

Screen Shots :-

Asm_program_XCHG_Two_Numbers

Before Execution :-

Asm_program_XCHG_Two_Numbers_Variables

After Execution :-

Asm_program_XCHG_Two_Numbers_Variables2

Note :- To see the variable and its value you have to click vars button in the emulator.