王爽汇编实验7

代码

assume cs:code,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'
；单字节
    dd 16,22,382,1356,2390,8000,16000,24486,50065,97479,140417,197514
    dd 345980,590827,803530,1183000,1843000,2759000,3753000,4649000,5937000
；双字
    dw 3,7,9,13,28,130,220,476,778,1001,1442,2258,2793,4037,5635,8226
    dw 11542,14430,15257,17800
    ；单字

data ends

table segment
    db 21 dup ('year summ ne ??')
；用21组数据覆盖重复21次的字符串
table ends

code segment
start:  mov ax,data
        mov ds,ax

        mov ax,table
        mov es,ax
；处理段寄存器
        mov si,0
        mov di,0
        mov bx,0
        mov cx,21
  ；处理偏移地址   
      s:mov ax,ds:[bx]
        mov es:[si],ax
        mov ax,ds:[bx+2]
        mov es:[si+2],ax
；年份
        mov ax,ds:[bx+84]
        mov es:[si+4],ax
        mov ax,ds:[bx+86]
        mov es:[si+6],ax
；收入  84=21*4
        mov ax,ds:[168+di]
        mov es:[si+8],ax
；雇员
        mov dx,ds:[bx+86]
        mov ax,ds:[bx+84]
         ；收入是4个字节
        div word ptr ds:[168+di]
        mov es:[si+10],ax
；平均收入 10=4+4+2
        add bx,4
        add si,16            ；table首地址
        add di,2
        loop s

        mov ax,4c00h
        int 21h

code ends
end start