Change a variable to the opposite?

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  1. - 20th June 2012, 03:51 #6
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    SteveB
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    Default Re: Change a variable to the opposite?

    That is an "exclusive OR" (XOR) with a byte of 00001111. So when you input 00001001, it will return 00000110.

    Here is the truth table on page 79 of the manual.
    Code:
    A    B   A ^ B
0    0      0
0    1      1
1    0      1
1    1      0
    If only A or only B is 1, then result is 1.
    The ^ operator is commonly used to invert selected bits:
    Last edited by SteveB; - 20th June 2012 at 03:54.
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