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Feb 25th, 2018
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  1. TITLE HR : RAKIB
  2. .MODEL SMALL
  3. .STACK 100H
  4. .DATA
  5.  
  6. NA DB 'MD. RAKIBUL HASAN$'
  7. D1 DB 0DH,0AH,0DH,0AH,'ENTER A LOWER CASE ALPHABET : $'
  8. D2 DB 0DH,0AH,'UPPER CASE : $'
  9. D3 DB 0DH,0AH,'ENTER A UPPER CASE ALPHABET : $'
  10. D4 DB 0DH,0AH,'LOWER CASE : $'
  11.  
  12. .CODE
  13.  
  14. MAIN PROC
  15.  
  16. MOV AX,@DATA
  17. MOV DS,AX
  18.  
  19. LEA DX,NA
  20. MOV AH,9
  21. INT 21H
  22.  
  23. LEA DX,D1
  24. MOV AH,9
  25. INT 21H
  26.  
  27. MOV AH,1
  28. INT 21H
  29.  
  30. SUB AL,20H
  31. MOV BL,AL
  32. INT 21H
  33.  
  34. LEA DX,D2
  35. MOV AH,9
  36. INT 21H
  37.  
  38. MOV AH,2
  39. MOV DL,BL
  40. INT 21H
  41.  
  42.  
  43.  
  44.  
  45. LEA DX,D3
  46. MOV AH,9
  47. INT 21H
  48.  
  49. MOV AH,1
  50. INT 21H
  51.  
  52. ADD AL,20H
  53. MOV BL,AL
  54. INT 21H
  55.  
  56. LEA DX,D4
  57. MOV AH,9
  58. INT 21H
  59.  
  60. MOV AH,2
  61. MOV DL,BL
  62. INT 21H
  63.  
  64. MOV AH,4CH
  65. INT 21H
  66.  
  67. MAIN ENDP
  68. END MAIN
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