STATUS FLAG. Need help fast:) - Programmers Heaven

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STATUS FLAG. Need help fast:)

Hi all. I want to check the Status Flag after a command but it gives wrong values! For example:
After adding 126 with 127 Status Flag would be FFBA, BUT...
when i run this code, it gives 7112:

mov ax, 126
mov bx, 127
PUSHF
MOV dx, 0FFFFh
PUSH dx
POPF
add ax, bx
PUSHF
POP ax
POPF
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