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9. XOR Gate Using Basic Gates

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Solving Approach

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Code

// ============================================================
// Basic Gates (given)
// ============================================================
module and_gate(input a, b, output y);
    assign y = a & b;
endmodule

module or_gate(input a, b, output y);
  assign y=~a&b|~b&a;

endmodule

module not_gate(input a, output y);
  assign y=~a;

endmodule

// ============================================================
// XOR Gate
// ============================================================
module xor_gate (
    input  a, b,
    output y
);
    // TODO: declare intermediate wires

    // TODO: instantiate required gates
   assign y=a^b;
endmodule

 

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