Logical Xor '^'

Syntax

Assignment Variable = Variable ^ Variable

Overview

The Xor operator returns the bitwise Xor of two values. Each bit of the values is subject to the following logic: -

0 xor 0 = 0 0 xor 1 = 1 1 xor 0 = 1 1 xor 1 = 0

The result returned by ^ will contain 1s in any bit positions in which one or the other (but not both) input values contain 1s.

Operands

Variable can be a constant, variable or expression. Assignment Variable can be any valid variable type.

Example 1

Device = 18F26K40                      ' Select the device to compile for
Declare Xtal = 16  ' Tell the compiler the device will be operating at 16MHz
Declare Hserial_Baud = 9600             ' Set the Baud rate for HRsoutLn

Dim bMyVar1 as Byte
Dim bMyVar2 as Byte
Dim bMyResult as Byte

bMyVar1 = 0b00001111
bMyVar2 = 0b10101001
bMyResult = bMyVar1 ^ bMyVar2
HRsoutLn Bin8 bMyResult                ' Display the XOR binary result: 10100110

Example 2

Device = 18F26K40                      ' Select the device to compile for
Declare Xtal = 16  ' Tell the compiler the device will be operating at 16MHz
Declare Hserial_Baud = 9600             ' Set the Baud rate for HRsoutLn

HRsoutLn Bin8 (ob00001111 ^ 0b10101001)  ' Display the XOR binary result 10100110

Note.

Bitwise operations are not permissible with floating point constants or variables.

View original PDF page 89

Open page in PDF