关于子程序的

;编写一个子程序嵌套结构的程序模块，分别从键盘输入姓名及8个字符的电话号码，并以一定的格式显示出来。
DATAS SEGMENT
inbuffer db 20 dup(' ')
outname     db 20 dup(' '), 0DH,0AH, '$'
outphone    db 8 dup(' '), 0DH,0AH, '$'
str1     db 'please input name:','$'
str2     db 'please input telephone numeber:','$'
str3     db '***************************',0DH,0AH,'NAME:','$'
str4     db '***************************',0DH,0AH,'TELEPHONE:','$'
CRLF        DB  0DH, 0AH, '$'
DATAS ENDS
;定义数据段
STACKS SEGMENT
dw 100 dup(?)
tos label word
STACKS ENDS
;定义堆栈段
CODES SEGMENT
main proc far
    ASSUME CS:CODES,DS:DATAS,ES:DATAS,SS:STACKS
START:
    MOV AX,STACKS
    MOV SS,AX
    mov sp,offset tos
    push ds
    sub ax,ax
    push ax
    mov ax,DATAS
    mov DS,ax
    mov es,ax
    mov cx,100
    push cx
begin:
       lea dx,offset str1
       mov ah,09h
       int 21h
       call input_name
       lea dx,offset str2
       mov ah,09h
       int 21h
       call input_phone
       call display
       ret
       pop cx
  loop begin
  main endp
;主程序
input_name proc near
call input_
lea si,inbuffer
lea di,input_name
mov cx,20
cld
rep movsb
ret
input_name endp
;姓名输入子程序
input_phone proc near
call input_
lea si,inbuffer
lea di,input_phone
mov cx,8
cld
rep movsb
ret
input_phone endp
;电话输入子程序
input_    proc near
lea dx,inbuffer
mov ah,0ah
int 21h
call cld_
ret
input_  endp
;字符输入子程序
display  proc  near
lea dx,str3
mov ah,09h
int 21h
lea  dx,outname
mov ah,09h
int 21h
lea dx,str4
mov ah,09h
int 21h
lea dx,outphone
mov ah,09h
int 21h
ret
display endp
;显示姓名、电话子程序
cld_  proc near
mov dl,0ah
mov ah,02h
int 21h
mov dl,0dh
int 21h
ret
cld_ endp
;回车、换行子程序


  
CODES ENDS
    END main