Assembly Program to Count Vowels in a String


The program will prompt the user to input a string and will count the number of vowels present in that string.

The program takes a string and stores the string in STRING and will start iteration if there is a consonant the program will continue without incrementing VOWELS and if there is a VOWEL the program will increment VOWELS. After counting the vowels the program simply prints the number of vowels.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
.MODEL SMALL
.STACK 100H
.DATA  
STRING DB 100 DUP(?)
MSG1 DB "ENTER A STRING: $"
MSG2 DB 0DH, 0AH, "NO. OF VOWELS_FOUNDS: $"
VOWELS DW 0     
.CODE
MAIN PROC
    
     MOV AX, @DATA
     MOV DS, AX
     MOV ES, AX
     
     MOV AH, 9
     LEA DX, MSG1
     INT 21H
     
     LEA DI, STRING
 
     MOV AH, 1
     READ:
     INT 21H
     CMP AL, 0DH
     JE ENDOFSTRING
     STOSB
     JMP READ
     
     ENDOFSTRING:
     MOV AL, "$"
     STOSB
     
     XOR BX, BX
     
     COUNT:
     MOV AL, STRING[BX]
     CMP AL, "$"
     JE EXIT
     CMP AL, "a"
     JE VOWEL_FOUND
     CMP AL, "e"
     JE VOWEL_FOUND
     CMP AL, "i"
     JE VOWEL_FOUND
     CMP AL, "o"
     JE VOWEL_FOUND
     CMP AL, "u"
     JE VOWEL_FOUND
     CMP AL, "A"
     JE VOWEL_FOUND
     CMP AL, "E"
     JE VOWEL_FOUND
     CMP AL, "I"
     JE VOWEL_FOUND
     CMP AL, "O"
     JE VOWEL_FOUND
     CMP AL, "U"
     JE VOWEL_FOUND      
     INC BX
     JMP COUNT
     
     VOWEL_FOUND:
     MOV CX, VOWELS
     INC CX
     MOV VOWELS, CX
     INC BX 
     JMP COUNT     
         
     EXIT:
     
     MOV AH, 9
     LEA DX, MSG2
     INT 21H
     
     MOV AH, 2
     MOV DX, VOWELS
     ADD DX, 30H
     INT 21H
     
    MAIN ENDP
END MAIN

Output:


2 comments:

  1. I’m excited to uncover this page. I need to to thank you for ones time for this particularly fantastic read!! I definitely really liked every part of it and i also have you saved to fav to look at new information in your site.
    Data Analytics Training in Hyderabad | Business Analytics Training in Hyderabad | Data Analytics Course in Hyderabad | Business Analytics Course | Data Analytics Course

    ReplyDelete
  2. Attend The Data Analyst Course From ExcelR. Practical Data Analyst Course Sessions With Assured Placement Support From Experienced Faculty. ExcelR Offers The Data Analyst Course.
    Data Analyst Course

    ReplyDelete