解决王爽写的汇编语言的第七个验七- 寻址方式在结构化数据访问中的应用

分手后的思念是犯贱 2022-11-25 05:26 62阅读 0赞

原文：

汇编语言-（第三版） 王爽-著 （实验七） 寻址方式在结构化数据访问中的应用  
https://www.52pojie.cn/thread-1241289-1-1.html  
(出处: 吾爱破解论坛)

是一个里程碑式的实验。数据处理，代码处理数据转存储。进行循环，以及存储被除数除以除数的数据。  
当然也有些许搞不懂的地方。留给以后学习吧！  
  
题目：  
![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70][]  
g命令跳转：  
![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70 1][]  
查看结果：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70 2][]  
代码如下：

assume cs:codesg,ds:data,es:table
    
    data segment
    	db '1975','1976','1977','1978','1979','1980','1981','1982','1983'
        db '1984','1985','1986','1987','1988','1989','1990','1991','1992'
    	db '1993','1994','1995'
    	dd 16,22,382,1356,2390,8000,16000,24486,50065,97479,140417,197514
        dd 345980,590827,803530,1183000,1843000,2759000,3753000,4649000,5937000
    
        dw 3,7,9,13,28,38,130,220,476,778,1001,1442,2258,2793,4037,5635,8226
        dw 11542,14430,15257,17800
    data ends
    
    table segment
    	db 21 dup('year summ ne ?? ')
    table ends
    
    
    codesg segment
    
    start:
    	mov ax,data
    	mov ds,ax
    	mov ax,table
    	mov es,ax
    	
    	mov bx,0
    	mov si,0
    	mov di,0
    	mov cx,21
    	
    	s:
    	mov al,[bx]
    	mov es:[di],al
    	mov al,[bx+1]
    	mov es:[di+1],al
    	mov al,[bx+2]
    	mov es:[di+2],al
    	mov al,[bx+3]
    	mov es:[di+3],al;写入年份
    	
    	mov ax,54h[bx]
    	mov dx,56h[bx]
    	mov es:5h[di],ax
    	mov es:7h[di],dx
    	
    	mov ax,0a8h[si]
    	mov es:0ah[di],ax;写入雇员数
    	
    	mov ax,54h[bx]
    	div word ptr ds:0A8h[si]
    	mov es:0dh[di],ax;取整，拿出ax中的东西就足够啦！
    	
    	add bx,4;用于双字
    	add si,2;用于单个字
    	add di,16;换行
    	
    	loop s
    	
    	mov ax,4c00h
    	int 21h
    codesg ends
    end start

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