王爽的《汇编语言》

实验7

assume cs:code

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 345980,590827,80330,1183000,1843000,2759000,3753000,4649000,5937000

    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

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

        mov bx,0
        mov bp,0
        mov cx,21
        mov si,0

      s:mov ax,es:[bp]
        mov [bx],ax
        mov ax,es:2[bp]
        mov 2[bx],ax

        mov ax,es:84[bp]
        mov 5[bx],ax
        mov ax,es:86[bp]    
        mov 7[bx],ax

        mov ax,es:168[si]
        mov 0ah[bx],ax

        mov dx,7[bx]        
        mov ax,5[bx]
        div word ptr 0ah[bx]        
        mov 0dh[bx],ax

        add si,2
        add bp,4
        add bx,16  

        loop s

  mov ax,4c00h
  int 21h
code ends
end start

 

检测点9.2

assume cs:code
code segment
start: mov ax,2000h
    mov ds,ax
    mov bx,0
     s: mov ax,bx
    mov ax,[bx]
        mov cx,ax
    jcxz OK
    inc bx

    jmp short s
    OK: mov dx,bx

  mov ax,4c00h
  int 21h
code ends
end start

 

检测点9.3

assume cs:code
code segment
start: mov ax,2000h
    mov ds,ax
    mov bx,0
     s: mov cl,[bx]
    mov ch,0
        add cx,1
    inc bx
    loop s
    OK: dec bx
    mov dx,bx

  mov ax,4c00h
  int 21h
code ends

end start

 

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