如果ax中的数是奇数:bx为0
否则bx为1
; judge which the number in ax is odd or even
assume cs:code
code segment
mov ax,[bx]
mov cx,ax
mov bx,0
s:
loop i ; if can't loop , cx is 1
; every loop, cx -= 2
; odd
mov bx,0
loop k
i:
; sub cx,1
loop s
; even
mov bx,1
; loop k
k:
;over
mov ax,4c00h
int 21h
code ends
end
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