汇编程序：这是一个假游戏

【任务】
　　编写程序，模仿射击游戏中，用上、下、左、右键控制跳上、跳下、装子弹、射击的动作，ESC键退出游戏。
　　运行结果如图：
　　
　　请在下面程序基础上，补全代码段：

assume cs:code, ss:stack, ds: datastack segment     db 256 dup (0)stack endsdata segment      dw 0,0  run   db 'Game is runing...',0dh,0ah,'$'  up    db 'Jump up...',0dh,0ah,'$'  down  db 'Jump down...',0dh,0ah,'$'  right db 'shoot...',0dh,0ah,'$'  left  db 'get bullet...',0dh,0ah,'$'  over  db 'Byebye...',0dh,0ah,'$'data endscode segmentstart:code endsend start

【参考解答】

assume cs:code, ss:stack, ds:datastack segment     db 256 dup (0)stack endsdata segment      dw 0,0  run   db 'Game is runing...',0dh,0ah,'$'  up    db 'Jump up...',0dh,0ah,'$'  down  db 'Jump down...',0dh,0ah,'$'  right db 'shoot...',0dh,0ah,'$'  left  db 'get bullet...',0dh,0ah,'$'  over  db 'Byebye...',0dh,0ah,'$'data endscode segmentstart:      mov ax,stack      mov ss,ax      mov sp,256      mov ax,data      mov ds,ax      ; 改中断例程入口地址      mov ax,0      mov es,ax      push es:[9*4]      pop ds:[0]      push es:[9*4+2]      pop ds:[2]      mov word ptr es:[9*4],offset int9      mov es:[9*4+2],cs      ; 游戏运行中play: lea dx, run      mov ah,9      int 21h      call delay      jmp play      ; 延时delay:push ax      push dx      mov dx,10h      mov ax,0   s1:sub ax,1      sbb dx,0      cmp ax,0      jne s1      cmp dx,0      jne s1      pop dx      pop ax      ret      ; 定义中断例程int9: push ax      push bx      push dx      push es      in al,60h      pushf      pushf      pop bx      and bh,11111100b      push bx      popf      call dword ptr ds:[0]  cup:cmp al,48h ; 48h是UP键的扫描码      jne cdown      lea dx, up      jmp showcdown:cmp al,50h ; 50h是down键的扫描码      jne cright      lea dx, down      jmp showcright:cmp al,4Dh ; 4Dh是UP键的扫描码      jne cleft      lea dx, right      jmp showcleft:cmp al,4Bh ; 4Bh是left键的扫描码      jne cesc      lea dx, left show:mov ah,9      int 21h      jmp int9ret cesc:cmp al, 01h ;01h是esc键的扫描码      jne int9ret      ;处理END，使程序结束，注意在此要恢复中断向量      lea dx, over      mov ah,9      int 21h      mov ax,0      mov es,ax      push ds:[0]      pop es:[9*4]      push ds:[2]      pop es:[9*4+2]      mov ax,4c00h      int 21hint9ret:pop es      pop dx      pop bx      pop ax      iretcode endsend start