asm mov cx, ax;               
      asm mov dx, bx;               
      asm shl bx, 6;                
      asm mov ax, bx;              
      asm mov bx, dx;                
      asm shl bx, 4;                 
      asm add ax, bx;                
      asm mov bx, cx;                
      asm shr bx, 3;                 
      asm add ax, bx;                
      asm mov di, ax;               
      asm mov bx, 32639;              
      asm and cl, 7;              
      asm shr bl, cl;               
      asm mov ax, 0A000h;            
      asm mov es, ax;                
      asm and es:[di], bl;