从array开始的十各字单元存放了带符号数，统计大于50的个数

[sunwantc]

从array开始的十各字单元存放了带符号数，统计大于50的个数.需要完整的代码

[BAYNPU]

请楼主参考一下吧:
.model small
.data
array dw -45,-54,-86,-70,-50,-90,-23,-61,-59,-78
count equ ($-array)/2
mess db 'select the option(1:maximum 2:minimum):$'
err db 'error!$'
mess1 db 'the maximum is:$'
mess2 db 'the minimum is:$'
mess3 db 'the average value is:$'
newline db 13,10,'$'
average dw ?
crlf macro
lea dx,newline
mov ah,09h
int 21h
endm
messg macro addrs
lea dx,addrs
mov ah,09h
int 21h
endm
.code
mov ax,@data
mov ds,ax
lea bx,array
mov cx,count
inflag:messg mess
mov ah,1
int 21h
mov dl,al
cmp dl,'1'
je maxv
cmp dl,'2'
je minv
cmp dl,'3'
je avg
cmp dl,'q'
je exit
crlf
messg err
crlf
jmp inflag
maxv:call choose
push ax
messg mess1
pop ax
call btod
crlf
jmp inflag
minv:call choose
push ax
messg mess2
pop ax
call btod
crlf
jmp inflag
avg:messg mess3
lea bx,array
mov cx,count
call _average
mov ax,average
call btod
crlf
jmp inflag
exit:mov ax,4c00h
int 21h
choose proc near
push ax
push si
dec cx
mov si,2
mov ax,[bx]
loop1:cmp dl,'2'
jne flag1
cmp ax,[bx+si]
jle next
jmp flag2
flag1:cmp ax,[bx+si]
jge next
flag2:mov ax,[bx+si]
next: inc si
inc si
loop loop1
pop si
pop ax
ret
choose endp
_average proc near
push dx
push cx
lodsw
mov ax,0
next1:add ax,[bx]
inc bx
inc bx
loop next1
pop cx
mov dx,0
idiv cx
mov average,ax
pop dx
ret
_average endp
btod proc near
push si
push dx
push cx
push bx
push ax
cmp ax,0
jge next2
neg ax
push ax
mov dl,'.'
mov ah,02h
int 21h
pop ax
next2:mov dx,0
mov si,10
mov cx,0
next3:div si
add dl,30h
push dx
inc cx
mov dx,0
cmp ax,0
jnz next3
mov ah,2
disp:pop dx
int 21h
loop disp
mov dl,'.'
mov ah,02h
int 21h
pop ax
pop bx
pop cx
pop dx
pop si
ret
btod endp
end

[sunwantc]

谢谢了，不过我是初学者，有些还看不懂