TITLE prb17.asm : A PROGRAM THAT READ CAPITAL LETTER AN D DISPLAY IN LOWERCASE

.model small
.stack
.data
    A db 0dh,0ah,"ENter an Input....",0dh,0ah,"$"
    B db 0dh,0ah,"ENter an Output....",0dh,0ah,"$"
.code
main proc

        mov ax,@data
        mov ds,ax
        lea dx,A

        mov ah,09h
        int 21h
        mov ah,01h
        int 21h

        add al,20h
        mov bl,al
        lea dx,B

        mov ah,09h
        int 21h
        mov dl,bl
        mov ah,02h
        int 21h

        mov ah, 4ch
        int 21h

  main endp
end main