12. Vector Bitwise Operators

module bitwise_ops_demo (
    input  [3:0] A,
    input  [3:0] B,
    output [3:0] AND_OUT,
    output [3:0] OR_OUT,
    output [3:0] XOR_OUT,
    output [3:0] XNOR_OUT
);
    assign AND_OUT  = A & B;
    assign OR_OUT   = A | B;
    assign XOR_OUT  = A ^ B;
    assign XNOR_OUT = ~(A ^ B); // or A ~^ B
endmodule

💡Remember

~(A ^ B) and A ~^ B are equivalent XNOR forms.
Operators act per bit position; widths must match (both 4-bit here).