菜鸡记录-王爽-汇编语言-实验十（编写子程序-解决除法溢出）

妖狐艹你老母 2022-11-29 12:58 109阅读 0赞

题目：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70][]

代码：

assume cs:code,ss:stack
    
    stack segment
    	dw 8 dup(0)
    stack ends
    
    code segment
    start:
    		mov ax,stack
    		mov ss,ax
    		mov sp,10h
    		
    		mov ax,4240H;低位
    		mov dx,000FH;高位
    		mov cx,0AH;除数
    		call divdw
    		mov ax,4c00h
    		int 21h
    	divdw:
    	push ax
    	mov ax,dx;对高位进行操作
    	mov dx,0
    	div cx
    	mov bx,ax;保存得到的商
    	
    	pop ax;此时的dx就是上一次剩下的余数,ax保存其原有属性即可！
    	div cx
    	mov cx,dx;保存余数
    	mov dx,bx;保存商
    	ret
    code ends
    end start

代码截图：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70 1][]

结果：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70 2][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70]: /images/20221124/16ad7309c29c402ca31f26d036fcfae2.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70 1]: /images/20221124/e6fe39f71a8e46cebe7a722ef9372b66.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70 2]: /images/20221124/d2d6af81902b4d05aeb0a4967405eb2c.png