int 21h
datacate proc near
;
push cx;
dec cx
lea si,buf+2
tt1: inc si
loop tt1
;lea si,cx[di]
pop cx
mov dh,30h
mov bl,10
mov ax,1
l1: push ax
sub byte ptr [si],dh
mul byte ptr [si]
add w,ax
pop ax
mul bl
dec si
loop l1
ret
datacate endp
ifyears proc near
push bx
push cx
push dx
mov ax,w
mov cx,ax
mov dx,0
mov bx,4
div bx
cmp dx,0
jnz lab1
mov ax,cx
mov bx,100
div bx
cmp dx,0
jnz lab2
mov ax,cx
mov bx,400
div bx
cmp dx,0
jz lab2
lab1: clc
jmp lab3
lab2: stc
lab3: pop dx
pop cx
pop bx
ret
ifyears endp