王爽汇编语言实验7

最近在学底层汇编做的一个练习，放上来纪念，感觉有点生硬，不过运行是没问题的。(王爽汇编语言p160)

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'
;年份(4字节)

dd 16,22,382,1356,2390,8000,1600,24486,50065,97479,140417,197514
dd 345980,590827,803530,1183000,1843000,2759000,3753000,4649000,5973000
;年收入(4字节)

dw 3,7,9,13,28,38,130,220,476,778,1001,1442,2258,2793,4037,5635,8226
dw 11542,11430,15257,17800
;员工人数(2字节)

data ends

table segment
db 21 dup ('year summ ne ?? ')
table ends

;-U 反汇编
;-T 2 执行跟踪
;-D DS:0 查看范围

;年份开始偏移地址为0000
;年收入开始偏移地址为0054
;员工人数开始偏移地址为00a8
;table位置分别是0000h,0005h,000ah,000dh

assume cs:code,ds:data,es:table

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

   mov bx,0
   mov di,0
   mov si,0
   mov cx,21

   s:
   ;读取年份放到table
   mov ax,ds:[di]
   mov es:[bx],ax

   mov ax,ds:[di+2]
   mov es:[bx+2],ax

   ;读取员工数放到table
   mov ax,ds:[00a8h+si]
   mov es:[bx+000ah],ax

   ;读取收入放到table
   mov ax,ds:[di+0054h]
   mov es:[bx+5],ax

mov dx,ds:[di+0054h+2] ;高位字
mov es:[bx+5+2],dx

   ;总收入除以员工，得平均收入(ax为商，dx为余数)
   div word ptr ds:[00a8h+si]
   mov es:[bx+000dh],ax

   add di,4h   ;年份，收入下一行
   add si,2h   ;员工下一行
   add bx,10h ;表格下一行

   loop s

   mov ax,4c00h
   int 21h

code ends

end start

debug结果放在es寄存器，用d es:0查看

补充：综合编程 , 其他综合 ,