第一次做 比較爛的實現:
assume cs:code,ds:data,ss:stack
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
stack segment //stack 存變量
dw 0,0,0,0,0,0,0,0
stack ends
code segment
start:
mov ax,data
mov ds,ax
mov ax,table
mov es,ax
mov ax,stack
mov ss,ax
mov sp,16
mov bx,0
mov cx,21
mov bp,0
mov di,0
mov si,0
s0:
push cx
push si
mov si,0
mov cx,4
s:
mov al,ds:[bp]
mov es:[bx].0H[si],al
inc bp
inc si
loop s
mov ax,ds:84[di]
mov es:[bx].0H[5],ax
push ax
add di,2
mov ax,ds:84[di]
mov es:[bx].0H[7],ax
mov dx,ax
pop ax
add di,2
pop si
push ax
mov ax,ds:168[si]
mov es:[bx].0H[10],ax
pop ax
div word ptr ds:168[si]
mov es:[bx].0H[13],ax
add si,2
add bx,10H
pop cx
loop s0
mov ax,4c00H
int 21H
code ends
end start
看了答案之后,按照答案的邏輯重寫了一遍:
assume cs:code,ds:data,es:table
data segment
db '1975','1976','1977','1978','1979','1980','1981','1982','1983' ;年份數據,每年占4字節
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 ;收入數據,每年占4字節
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 ;人數數據,每年占2字節
dw 11452,14430,15257,17800
data ends
table segment
db 21 dup ('year summ ne ?? ')
table ends
code segment
start:
mov ax,data
mov ds,ax ;ds放data數據
mov ax,table
mov es,ax ;es放table數據
mov bx,0 ;bx存放 年份和收入的偏移指針(由於年份和收入每年都是占4字節,所以可以用同一個偏移指針)
mov si,0 ;si存放 人數偏移指針,每年增加2字節
mov di,0 ;di存放 table段中偏移指針,每年增加16字節
mov cx,21 ;循環21年
s:
;開始處理年份
mov ax,ds:[bx] ;bx處年份的前2個字節
mov es:[di],ax ;把2個字節寫入table中
mov ax,ds:[bx+2];把后2個字節放入ax
mov es:[di+2],ax;寫入table
;開始處理收入
mov ax,ds:84[bx];每一年份的年份數據和收入數據相差84字節
mov es:[di+5],ax;寫入字節
mov dx,ds:86[bx];放在高位中
mov es:[di+7],dx
;先做除法,填寫好平均工資,省去保存的麻煩
div word ptr ds:168[si] ;dxax除以168[si]表示的人數
mov es:[di+13],ax ;ax中存的商值放入每行13位置處
;開始處理人數
mov ax,ds:168[si]
mov es:[di+10],ax
add bx,4 ;bx每年加4個字節
add si,2 ;si每年加2個字節
add di,16 ;di每年加16個字節
loop s
mov ax,4c00H
int 21H
code ends
end start