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Program to print Upper Case Letters from A to Z

Posted By: Easy Tutor     Category: Assembly Language     Views: 13157

An AL Program to print Upper Case Letters from A to Z.

Code for Program to print Upper Case Letters from A to Z in Assembly Language

 .MODEL SMALL
 .STACK 100H

 .DATA
    PROMPT  DB  'The Upper Case Letters from A to Z are : $'

 .CODE
   MAIN PROC
     MOV AX, @DATA                ; initialize DS 
     MOV DS, AX

     LEA DX, PROMPT               ; load and print PROMPT 
     MOV AH, 9
     INT 21H

     MOV CX, 26                   ; initialize CX

     MOV AH, 2                    ; set output function  
     MOV DL, 65                   ; set DL with A

     @LOOP:                       ; loop start
       INT 21H                    ; print character

       INC DL                     ; increment DL to next ASCII character
       DEC CX                     ; decrement CX
 
     JNZ @LOOP                    ; jump to label @LOOP if CXis 0

     MOV AH, 4CH                  ; return control to DOS
     INT 21H
   MAIN ENDP
 END MAIN

 ;**************************************************************************;
 ;**************************************************************************;
 ;------------------------------  THE END  ---------------------------------;
 ;**************************************************************************;
 ;**************************************************************************;
  
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Easy Tutor
Easy Tutor author of Program to print Upper Case Letters from A to Z is from United States. Easy Tutor says

Hello Friends,

I am Free Lance Tutor, who helped student in completing their homework.

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I have share many programs on this website for everyone to use freely, if you need further assistance, than please contact me on easytutor.2ya [at the rate] gmail [dot] com

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Thanks,
Happy Programming :)

 
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