Lua:bXor
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Performs a bitwise XOR (exclusive OR) operation between two integer values. This function behaves the same as Lua's bitwise XOR operator (~) in Cheat Engine. It is used when toggling bits, detecting bit differences, or implementing specific bit-logic operations.
Contents
Function Parameters
| Parameter | Type | Description |
|---|---|---|
| int1 | integer | The first integer value used in the XOR operation. |
| int2 | integer | The second integer value used in the XOR operation. |
Returns
An integer representing the result of the bitwise XOR operation.
Description
The XOR operation compares each bit of the two integers and sets the result bit to 1 only if the bits differ. If both bits are the same (both 0 or both 1), the result bit is 0.
Binary example:
0011 (3) 0101 (5) ---- 0110 (6)
Usage Examples
Simple bitwise XOR:
1 print( bXor(3, 5) ) -- 6
Using Lua's XOR operator (equivalent):
1 print( 3 ~ 5 ) -- 6
Toggling flags with XOR:
1 local FLAG = 0x04
2 local value = 0x04
3
4 -- Toggle bit 2
5 toggled = bXor(value, FLAG)
6 print(string.format("0x%X", toggled))
Detecting bit differences:
1 local a = 0x0F
2 local b = 0x33
3 local diff = bXor(a, b)
4 print(string.format("Different bits: %X", diff))
Behavior
- Returns an integer.
- Only works on numeric values.
- Equivalent to Lua's native XOR operator (
~) in Cheat Engine. - Useful for flag toggling and detecting changed bits.
Advanced Examples
Clearing bits using XOR (when bit is known to be set):
1 local value = 0x0A -- 1010
2 local clearBit = 0x02 -- bit 1
3 value = bXor(value, clearBit)
4 print(string.format("0x%X", value))
XOR-based encryption/decryption (simple):
1 local key = 0x55
2 local original = 0x22
3
4 local encrypted = bXor(original, key)
5 local decrypted = bXor(encrypted, key)
6
7 print(encrypted, decrypted)
