From code generated from
http://www.piclist.com/techref/piclist/codegen/constdivmul.htm I've got a piece
of code that uses the following sequence:

        movlw   0x01
        xorwf   STATUS, f       ;complement carry

This works fine under the MPLAB simulator for a PIC16F871.  However when I run
that routine on chip, the carry isn't flipped.  I observed this non-flippin'
behavior using the Microchip ICD.

As always with all things PIC, I'm assuming I'm missing something.  The
datasheet for the 871, however,  says the XORWF instruction doesn't touch the C
flag, so I don't see why the bit isn't set (or cleared as the case may be, in my
case I was expecting to see it get set).

I've coded around this by using bit test and bit set/clear instructions, so I
can get on with the project, but if anyone has any insight on this I'd
appreciate it.

Thanks,
Kevin

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