Pattern Print

.model small
.stack 100h
.data

a db ?
b db ?
c db ?
d db ?
e db ?

.code
main proc

    mov cx,5
    mov d, 65
    mov b, 5
    mov c, 1
    mov e, 4

    mov ah, 2

    L1:
    push cx

    mov cx, 0
    mov cl, b

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

    dec b

    mov cx, 0
    mov cl, c

    mov bl, d
    add bl, c
    mov a, bl

        L3:
        dec a
        mov dl, a
        int 21h
        loop L3

    mov d, bl
    inc c

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

    pop cx
    loop L1

    mov ah,4ch
    int 21h

    main endp
end main