Steve Kasm wrote:
>
> Hi All,
>
> Here's another newbie question, please bear with me....

movf myreg,w        ; your data
andlw b'00001111'   ; mask upper 4 bits
xorlw b'0000bbbb'   ; XOR least significant bits
movwf Result        ; store result

if result of XOR = 0 then Z will be set = 1
--
Best regards

Tony

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