.model small .stack 100h .data msg db "Enter small character here:$" mesg db "Capital character is:$" .code main proc mov ax,@data mov ds,ax lea dx,msg mov ah,09 int 21h mov ah,1 int 21h mov bl,al mov ah,2 mov dl,0dh int 21h lea dx,mesg mov ah,9 int 21h mov dl,0ah int 21h sub bl,20h mov ah,2 mov dl,bl int 21h main endp end main
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