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发表于 2011-2-28 20:15:34
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- ;----------------------------------------------------------------------------
- ; Name: 实验7 寻址方式在结构化数据访问中的应用
- ; Author: Seely
- ; Date: 21:31 2011-1-6
- ;----------------------------------------------------------------------------
- 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'
-
- ;以上是表示21年的21个字符串 (0-53h)
-
- dd 16,22,382,1356,2390,8000,16000,24486,50065,97479,140417,197514
- dd 345980,590827,803530,1183000,1843000,2759000,3753000,4649000,5937000
-
- ;以上是表示21年公司总收入的21个dword型数据 (54h-0A7h)
-
- dw 3,7,9,13,28,38,130,220,476,778,1001,1442,2258,2793,4037,5635,8226
- dw 11542,14430,15257,17800
-
- ;以上是表示21年公司雇员人数的21个word型数据 (0A8h-0D1h)
-
- 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 ;字符串第一个字符写到table段
- mov al,[bx+1h]
- mov es:[di+1h],al ;字符串第二个字符写到table段
- mov al,[bx+2h]
- mov es:[di+2h],al ;字符串第三个字符写到table段
- mov al,[bx+3h]
- mov es:[di+3h],al ;字符串第四个字符写到table段
- mov al,20h
- mov byte ptr es:[di+4h],al ;空格
-
- mov ax,[bx+54h]
- mov es:[di+5h],ax ;收入前两字节低16位写到table段
- mov dx,[bx+56h]
- mov es:[di+7h],dx ;收入后两字节高16位写到table段
- mov al,20h
- mov byte ptr es:[di+9h],al ;空格
-
- mov ax,[si+0A8h]
- mov es:[di+0Ah],ax ;雇员人数,16位除数写到table段
- mov al,20h
- mov byte ptr es:[di+0Ch],al ;空格
-
- mov ax,[bx+54h] ;总收入,被除数,低16位放ax
- mov dx,[bx+56h] ;总收入,被除数,高16位放dx
- div word ptr ds:[si+0A8h];做除法运算
- mov es:[di+0Dh],ax ;将商写到table段
- mov al,20h
- mov byte ptr es:[di+0Fh],al ;空格
-
- add bx,4
- add si,2
- add di,16
- loop s
-
- mov ax,4c00h
- int 21h
-
- codesg ends
- end start
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