Ok... As it turns out, I didn't need to sleep on this one.

The proper code is:

    MOVF    BYTE_A,W
    ANDWF   BYTE_B,W

    XORWF   BYTE_C,W        ;Bit_C of BYTE_C must not change between
                            ;this instruction and the XORWF BYTE_C,
                            ;below.  The other bits of BYTE_C,
                            ;however, are free to change.

    ANDLW   00000001B       ;Assumes that Bit_A, Bit_B and Bit_C are
                            ;the LSBs of their respective bytes.

    XORWF   BYTE_C

-Andy

=== Andrew Warren - fastfwd@ix.netcom.com
=== Fast Forward Engineering - Vista, California
=== http://www.geocities.com/SiliconValley/2499

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