Thank you all for your inputs.  What I did is I COMF the w reg. and I added
0x01 to w and that worked for me.  Thanks again.

At 01:37 PM 5/6/99 +0200, you wrote:
>Hi,
>I think the idea is bogus: XOR with itself produces always zero. I guess
>COMF it, and then INC it.
>Imre
>
>
>On Wed, 5 May 1999, Mr and Mrs James Paul wrote:
>
>> Exclusive or it with itself and then add 1
>>
>>
>>
>> >Hi,
>> >Can anybody tell me how to do a 2's complement of hex# stored in the w
>> >register.  Thanks
>> >Aidi Moubhij
>> >
>> >aidi@mjr.com
>> >
>>
>>
>
Aidi Moubhij

aidi@mjr.com