Cheat Engine

[Habufe]

what is the opposite of the logical AND? like for example, the opposite of or is xor because 10 or 5 = 15, and 15 xor 5 = 10.

i thought about xnor but it replaces all the bytes in the beginning to 1s and it screws up the number.

[Goddess]

Correct me if I'm wrong, but if it's the same as electronics it should be "NAND" (Not/And)


Tables:

-KEY-

[Symbol]

XOR is not the opposite of OR:

[Noz3001]

[nog_lorp]

Do you want opposite or inverse? The property you were trying to describe between xor and or (which is not actually true) is that of being the inverse function to the other. In fact, xor is the inverse of itself. (A xor B) xor B = A; (A xor B) xor A = B;

Given "f(X) = X xor C", f(f(X)) = X;

[92Garfield]

i think opposite of or is not or and opposite of and is not and

1 and 1 = 1
not (1 and 1) = not 1 = 0

1 or 0 = 1
not (1 or 0) = not 1 = 0

btw xor is

A - B - C (a xor b = c)
1 - 1 - 0
1 - 0 - 1
0 - 1 - 1
0 - 0 - 0

they must be different to make xor return 1

[nog_lorp]

We need to define opposite better to have this discussion. OP seems to be talking about the inverse operation of given logical operations.

If you define opposite to mean flipped bits / opposite logical result, then NOT(f(x)) gives you that by definition.

For OR and AND, there is no inverse function though, because they are not one-to-one in their domains/ranges.

[pkedpker]

opposite of AND lets see lol..
AND means checking for 2 pairs of data to be equal to something.. im guessing the opposite of it to check for data thats not equal to something? so it's a matter of changing == to != or !data == something.

I don't think a opposite exists but yah people told yah about the NOT command thats how you do it.

[SXGuy]

AND - NAND

OR - NOR

XOR - XNOR

[Noz3001]

[SXGuy]

you would have thought they would have named it NXOR tho wouldnt you lol