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72. 7-Segment Display Decoder

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Solving Approach

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Code

/*Write your code here*/
module sevenseg_hex(
    input  [3:0] hex,   // 4-bit hex input
    output reg [6:0] seg // 7-segment output (a-g)
);

    always @(*) begin
        case(hex)
            4'h0: seg = 7'b1111110; // a b c d e f
            4'h1: seg = 7'b0110000; // b c
            4'h2: seg = 7'b1101101; // a b d e g
            4'h3: seg = 7'b1111001; // a b c d g
            4'h4: seg = 7'b0110011; // b c f g
            4'h5: seg = 7'b1011011; // a c d f g
            4'h6: seg = 7'b1011111; // a c d e f g
            4'h7: seg = 7'b1110000; // a b c
            4'h8: seg = 7'b1111111; // a b c d e f g
            4'h9: seg = 7'b1111011; // a b c d f g
            4'hA: seg = 7'b1110111; // a b c e f g
            4'hB: seg = 7'b0011111; // c d e f g (styled 'b')
            4'hC: seg = 7'b1001110; // a d e f
            4'hD: seg = 7'b0111101; // b c d e g (styled 'd')
            4'hE: seg = 7'b1001111; // a d e f g
            4'hF: seg = 7'b1000111; // a e f g
            default: seg = 7'b0000000; // tất cả tắt
        endcase
    end

endmodule

 

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