Include a stimulus block covering all possible inputs in this code   module mux4to1(out, in0, in1, in2, in3, sel);     module mux2to1(out, in0, in1, sel);         input in0, in1, sel;         output out;     assign out = (sel == 1'b0) ? in0:in1;     endmodule     input ino0, in1, in2, in3, sel;     output out;     wire w1, w2;     mux2to1 m1(w1, in0, in1,sel);     mux2to1 m2(w2, in2, in3, sel);     assign out = (sel == 1'b0) ? w1:w2; endmodule

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Include a stimulus block covering all possible inputs in this code

 

module mux4to1(out, in0, in1, in2, in3, sel);

    module mux2to1(out, in0, in1, sel);
        input in0, in1, sel;
        output out;
    assign out = (sel == 1'b0) ? in0:in1;

    endmodule

    input ino0, in1, in2, in3, sel;
    output out;
    wire w1, w2;

    mux2to1 m1(w1, in0, in1,sel);
    mux2to1 m2(w2, in2, in3, sel);

    assign out = (sel == 1'b0) ? w1:w2;

endmodule

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