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- `timescale 1 ns / 1 ns
- module CORDIC_ABS_tb;
- localparam pi = 3.1415926535897932384626433832795;
- reg signed [15:0] X;
- reg signed [15:0] Y;
- wire [15:0] abs;
- reg clk = 0;
- real phase1 = 0;
- real phase2 = 0;
- always
- #5 clk = !clk;
- always @(posedge clk) begin
- phase1 <= phase1 + (pi / 20);
- phase2 <= phase2 + (pi / 300);
- X <= $rtoi(($cos(phase1) * (1 + 0.5 * $sin(phase2))) * 15'b010_0000_0000_0000);
- Y <= $rtoi(($sin(phase1) * (1 + 0.5 * $sin(phase2))) * 15'b010_0000_0000_0000);
- end
- CORDIC_ABS CORDIC_ABS_inst (
- .clk(clk),
- .X(X),
- .Y(Y),
- .abs(abs)
- );
- endmodule
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