汇编——用宏求平均值

data SEGMENT
    shuzu DW 104,-100,2,2,100,2,5,2,2,2,2,2,2,2,2,2,2,2,2,2
    DAT  DW 0
    SHOW DB 4 DUP(0
data ENDS
CODES SEGMENT
    ASSUME CS:CODES,DS:DATAS,SS:STACKS
START:
    mov ax,data
    mov ds,ax
    mov es,ax    
    
average macro
    mov bx,0
    mov cx,20  ;循环次数
    mov si,0
    
lop1:mov dx,shuzu[si]        
    add bx,dx
    add si,2
    loop lop1
endm  

    average
    
    mov ax,bx
    
    mov dl,20
    div dl   
    add al,48
    mov dl,al
    mov ah,2h
    int 21h             
 
CODES ENDS
END START