code    segment
        org     100h
        assume  cs:code
Start:  mov     ax,0a000h
        mov     es,ax
        mov     ax,0012h
        int     10h
        mov     ax,0
Loop0:
        mov     ds,ax
        mov     si,0
        mov     di,0
        mov     cx,80*480
        cld
        repnz   movsb
        add     ax,10
;       inc     ax
        push    ax
        mov     ah,01h
        int     16h
        pop     ax
        jz      Loop0

        mov     ax,0003h
        int     10h
        mov     ah,4ch
        int     21h
code    ends
        end     Start