MCSL 017 C and Assembly Language Programming 16-17

MCSL 017 

MCA 1st semester 

Section 2: Assembly Language Programming Lab

(a) Write a program in assembly language to find if two given strings are of equal length.

DATA SEGMENT

STR1 DB 'International$'

STR2 DB 'universal$'

MSG1 DB 10,13,'LENGTH OF THE STRING 1 IS :- $'

MSG2 DB 10,13,'LENGTH OF THE STRING 2 IS :- $'

MSG3 DB 10,13,'STRING ARE OF EQUAL LENGTH$'

MSG4 DB 10,13,'STRING ARE OF NOT EQUAL LENGTH$'

LEN1 DB 0H

LEN2 DB 0H

DATA ENDS

DISPLAY MACRO MSG

MOV AH,9

LEA DX,MSG

INT 21H

ENDM

CODE SEGMENT

ASSUME CS:CODE,DS:DATA

START:

MOV AX,DATA

MOV DS,AX

LEA SI,STR1

NEXT1:

CMP [SI],'$'

JE DONE1

INC LEN1

INC SI

JMP NEXT1

DONE1:

DISPLAY MSG1

MOV AL,LEN1

ADD AL,30H

MOV DL,AL

MOV AH,2

INT 21H

LEA DI,STR2

NEXT2:

CMP [DI],'$'

JE DONE2

INC LEN2

INC DI

JMP NEXT2

DONE2:

DISPLAY MSG2

MOV AL,LEN2

ADD AL,30H

MOV DL,AL

MOV AH,2

INT 21H

MOV AL,LEN1

CMP AL,LEN2

JE EQUAL

DISPLAY MSG4

JMP EXIT

EQUAL:

DISPLAY MSG3

EXIT:

MOV AH,4CH

INT 21H

CODE ENDS

END START