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Squelch trailing whitespace
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2021ddecb3
19 changed files with 165 additions and 165 deletions
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@ -12,7 +12,7 @@ module counter_tb;
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# 4 reset = 0;
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# 6 $finish;
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end
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/* Make enable with period of 8 and 6,7 low */
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reg en = 1;
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always begin
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@ -25,7 +25,7 @@ module counter_tb;
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/* Make a regular pulsing clock. */
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reg clk = 0;
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always #1 clk = !clk;
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/* UUT */
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wire [2:0] count;
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counter c1 (clk, reset, en, count);
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@ -4,7 +4,7 @@ set -ex
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# iverlog simulation
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echo "Doing Verilog simulation with iverilog"
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iverilog -o counter_tb counter.v counter_tb.v
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iverilog -o counter_tb counter.v counter_tb.v
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./counter_tb; gtkwave counter_tb.gtkw &
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# yosys synthesis
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@ -3,15 +3,15 @@ module sevenseg ( output reg [6:0] HEX0,
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always @(*) begin
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case(SW)
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4'h1: HEX0 = 7'b1111001;
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4'h2: HEX0 = 7'b0100100;
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4'h3: HEX0 = 7'b0110000;
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4'h4: HEX0 = 7'b0011001;
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4'h5: HEX0 = 7'b0010010;
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4'h6: HEX0 = 7'b0000010;
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4'h7: HEX0 = 7'b1111000;
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4'h8: HEX0 = 7'b0000000;
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4'h9: HEX0 = 7'b0011000;
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4'h1: HEX0 = 7'b1111001;
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4'h2: HEX0 = 7'b0100100;
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4'h3: HEX0 = 7'b0110000;
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4'h4: HEX0 = 7'b0011001;
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4'h5: HEX0 = 7'b0010010;
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4'h6: HEX0 = 7'b0000010;
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4'h7: HEX0 = 7'b1111000;
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4'h8: HEX0 = 7'b0000000;
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4'h9: HEX0 = 7'b0011000;
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4'ha: HEX0 = 7'b0001000;
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4'hb: HEX0 = 7'b0000011;
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4'hc: HEX0 = 7'b1000110;
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@ -20,6 +20,6 @@ module sevenseg ( output reg [6:0] HEX0,
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4'hf: HEX0 = 7'b0001110;
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4'h0: HEX0 = 7'b1000000;
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endcase // case (SW)
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end
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end
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endmodule
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@ -1,8 +1,8 @@
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`default_nettype none
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module top ( output wire [6:0] HEX0, HEX1, HEX2, HEX3, HEX4, HEX5, HEX6, HEX7,
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input wire [15:0] SW );
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sevenseg UUD0 (.HEX0(HEX0), .SW(4'h7));
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sevenseg UUD1 (.HEX0(HEX1), .SW(4'h1));
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sevenseg UUD2 (.HEX0(HEX2), .SW(4'h0));
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@ -11,5 +11,5 @@ module top ( output wire [6:0] HEX0, HEX1, HEX2, HEX3, HEX4, HEX5, HEX6, HEX7,
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sevenseg UUD5 (.HEX0(HEX5), .SW(SW[7:4]));
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sevenseg UUD6 (.HEX0(HEX6), .SW(SW[11:8]));
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sevenseg UUD7 (.HEX0(HEX7), .SW(SW[15:12]));
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endmodule
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@ -3,15 +3,15 @@ module sevenseg ( output reg [6:0] HEX0,
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always @(*) begin
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case(SW)
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4'h1: HEX0 = 7'b1111001;
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4'h2: HEX0 = 7'b0100100;
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4'h3: HEX0 = 7'b0110000;
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4'h4: HEX0 = 7'b0011001;
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4'h5: HEX0 = 7'b0010010;
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4'h6: HEX0 = 7'b0000010;
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4'h7: HEX0 = 7'b1111000;
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4'h8: HEX0 = 7'b0000000;
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4'h9: HEX0 = 7'b0011000;
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4'h1: HEX0 = 7'b1111001;
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4'h2: HEX0 = 7'b0100100;
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4'h3: HEX0 = 7'b0110000;
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4'h4: HEX0 = 7'b0011001;
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4'h5: HEX0 = 7'b0010010;
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4'h6: HEX0 = 7'b0000010;
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4'h7: HEX0 = 7'b1111000;
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4'h8: HEX0 = 7'b0000000;
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4'h9: HEX0 = 7'b0011000;
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4'ha: HEX0 = 7'b0001000;
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4'hb: HEX0 = 7'b0000011;
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4'hc: HEX0 = 7'b1000110;
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@ -20,6 +20,6 @@ module sevenseg ( output reg [6:0] HEX0,
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4'hf: HEX0 = 7'b0001110;
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4'h0: HEX0 = 7'b1000000;
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endcase // case (SW)
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end
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end
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endmodule
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@ -1,8 +1,8 @@
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`default_nettype none
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module top ( output wire [6:0] HEX0, HEX1, HEX2, HEX3, HEX4, HEX5, HEX6, HEX7,
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input wire [15:0] SW );
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sevenseg UUD0 (.HEX0(HEX0), .SW(4'h7));
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sevenseg UUD1 (.HEX0(HEX1), .SW(4'h1));
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sevenseg UUD2 (.HEX0(HEX2), .SW(4'h0));
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@ -11,5 +11,5 @@ module top ( output wire [6:0] HEX0, HEX1, HEX2, HEX3, HEX4, HEX5, HEX6, HEX7,
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sevenseg UUD5 (.HEX0(HEX5), .SW(SW[7:4]));
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sevenseg UUD6 (.HEX0(HEX6), .SW(SW[11:8]));
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sevenseg UUD7 (.HEX0(HEX7), .SW(SW[15:12]));
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endmodule
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