Question

Suppose x = 0x5A and y = 0xA5.

What is the output for x | y?

What is the output for x & y?

What is x for x = ~y?

What is the output for x ^ y?

Answer 1

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Result :

Answer : x | y = 0xFF

| bitwise -OR operator

0x5A | 0xA5

In binary : 0x5A = 0101 1010 , 0xA5= 1010 0101

        0101 1010

OR   1010   0101

---------------------------

         1111 1111 = 0xFF

What is bit-wise OR when

0 | 0 = 0

1 | 0 =1

0 | 1 = 1

1 | 1 = 1

Answer : x & y = 0x5A & 0xA5 =0x00

& bitwise AND operator

bitwise AND

0 & 0 = 0

1 & 0 = 0

0 & 1 = 0

1 & 1 = 1

x & y = 0x5A & 0xA5

in binary :

           0101 1010

    &     1010 0101

--------------------------------------

            0000 0000 = 0x00

Answer : x = ~y   x= ~0xA5 , x=0x5A

~ NOT operator

~1   = 0

~0 = 1

NOT operator inverse the bits when bit is 0 than inverse will be 1 ,when bit is 1 inverse will be 0

   ~1010 0101   = 0101 1010 = 0x5A

Answer : x^y = 0x5A ^ 0xA5 = 0xFF

^ Ex-OR operator

when both operand bit same result will be zero else will be 1.

0 ^ 0 = 0

1 ^ 0 = 1

0 ^ 1 = 1

1 ^ 1 = 0

0x5A ^ 0xA5

              0101 1010

        ^    1010   0101

-----------------------------------------------

           1111 1111 = 0xFF

Answer = 0xFF

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