一个旋转的3D箱子(动画)

 ax,cs
    mov     ds,ax               ; ds points to codesegment
    mov     ax,0a000h
    mov     es,ax               ; es points to vga

    lea     si,[Palette]        ; Set palette
    mov     dx,3c8h
    xor     al,al
    out     dx,al
    mov     dx,3c9h
    mov     cx,189*3
    repz    outsb

; === Set some variables ===
    mov     [DeltaX],1          ; Initial speed of rotation
    mov     [DeltaY],1          ; Change this and watch what
    mov     [DeltaZ],1          ; happens. It''s fun!

    mov     [Xoff],256
    mov     [Yoff],256          ; Used for calculating vga-pos
    mov     [Zoff],300          ; Distance from viewer

MainLoop:
    call    MainProgram         ; Yep do it all ;-)

    in      al,60h              ; Scan keyboard
    cmp     al,1                ; Test on ESCAPE
    jne     MainLoop            ; Continue if not keypressed

; === Quit to DOS ===
    mov     ax,0003h            ; Back to textmode
    int     10h
    lea     dx,[Credits]
    mov     ah,9
    int     21h
    mov     ax,4c00h