Star

.model small
.stack 100h
.data

a db ?
b db ?
c db ?


.code
    main proc

        mov ah, 1
        mov al, al
        int 21h

        mov cx, 0
        mov cl, al
        sub cl, 30h
        mov ah, 2

        mov dl, 0dh
        int 21h
        mov dl, 0ah
        int 21h

        L1:
        push cx

            mov cx, 3

            L2:
            mov dl, '*'
            int 21h
            loop L2

        mov dl, 0dh
        int 21h
        mov dl, 0ah
        int 21h

        pop cx
        loop L1

        mov ah, 4ch
        int 21h
    main endp
end main