本帖最后由 major_lyu 于 2020-2-17 00:12 编辑
我的代码如下:望大神批评指正!
- assume cs:code,ds:data
- 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(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
- ;总收入(54H~A7H)
- dw 3,7,9,13,28,38,130,220,476,778,1001,1442,2258,2793,4037,5635,8226
- dw 11542,14430,15257,17800
- ;员工数(A8H~D1H)
- data ends
- table segment
- db 21 dup('year summ ne ?? ')
- table ends
- code 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 ax, [bx] ; 写入年份数据,可以以字为单位操作,减少指令数量,发挥16位机优势
- mov es:[di],ax
- mov ax, [bx+2]
- mov es:[di+2], ax
-
- mov ax,54h[bx] ; 写入总收入数据
- mov dx,56h[bx]
- mov es:5h[di], ax
- mov es:7h[di],dx
-
- div word ptr ds:0A8h[si] ;计算并存储人均收入。由于总收入数据已经在ax, 和dx中了,所以将这一步提前,可以减少数据读取
- mov es:0Dh[di], ax
-
- mov ax, 0A8h[si] ; 写入人员数量数据
- mov es:0Ah[di], ax
-
- add si, 2
- add bx, 4
- add di, 16
- loop s
-
- mov ax, 4c00h
- int 21h
- code ends
- end start
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