实验14
与答案有一点出入，但是功能是一样的。assume cs:code
code segment
time: db 'yy/mm/dd hh:mm:ss','
coms: db 9,8,7,4,2,0
start:
mov ax,cs
mov ds,ax
mov bx,offset coms
mov si,offset time
mov di,si
mov ch,6
s:
mov al,
out 70h,al
in al,71h
mov ah,al
mov cl,4
shr ah,cl
and al,00001111b
add ah,30h
add al,30h
mov ,ah
mov ,al
cmp ch,1
je s1
add si,3
sub ch,1
inc bx
jmp s
s1:
mov ah,2
mov bh,0
mov dh,5
mov dl,12
int 10h
mov dx,di
mov ah,9
int 21h
mov ax,4c00h
int 21h
code ends
end start
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