Reverse engineering is a virtual method that only XOR is EAX low byte before returning

Question

I need help in reverse engineering a virtual method from disassembly. The code was originally compiled with Microsoft Visual C ++. This method is as follows:

sub_92D110    proc near
xor al, al
retn
sub_92d110    endp

This method refers to many classes, even several times inside the vtable of one class. I'm not sure what he is doing; Does the method that was built in, but the call remains so that vtables keep their size?

And if so, what does it do xor al, al? I don’t understand something about the calling agreement or something like that?

Answer 1

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    return false;
} 

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