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WIP: APS cumulative update (#98)
* WIP: APS cumulative update * Update How FPGA works.md * Перенос раздела "Последовательностная логика" в отдельный док * Исправление картинки * Исправление оформления индексов * Переработка раздела Vivado Basics * Добавление картинки в руководство по созданию проекта * Исправление ссылок в анализе rtl * Обновление изображения в sequential logic * Исправление ссылок в bug hunting * Исправление ссылок * Рефактор руководства по прошивке ПЛИС * Mass update * Update fig_10 * Restore fig_02
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Vivado Basics/vector_abs/tb_vector_abs.sv
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Vivado Basics/vector_abs/tb_vector_abs.sv
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/* -----------------------------------------------------------------------------
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* Project Name : Architectures of Processor Systems (APS) lab work
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* Organization : National Research University of Electronic Technology (MIET)
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* Department : Institute of Microdevices and Control Systems
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* Author(s) : Andrei Solodovnikov
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* Email(s) : hepoh@org.miet.ru
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See https://github.com/MPSU/APS/blob/master/LICENSE file for licensing details.
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* ------------------------------------------------------------------------------
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*/
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module tb_vector_abs();
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logic [31:0] a;
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logic [31:0] b;
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logic [31:0] res;
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vector_abs dut(
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.x(a),
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.y(b),
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.abs(res)
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);
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integer err_count = 0;
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task check_result(input logic [31:0]a, b, res);
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begin : check_result
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reg [31:0] ref_res;
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ref_res = a < b? a/2 + b : a + b/2;
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if (res !== ref_res) begin
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$display("Incorrect res at time %0t:", $time);
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$display("a = %0d, b = %0d", a, b);
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$display("design res = %0d", res);
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$display("reference res = %0d", ref_res);
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$display("------------------");
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err_count = err_count + 1'b1;
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end
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end
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endtask
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initial begin : test
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integer i;
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$timeformat(-9,0,"ns");
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a = 0; b = 0;
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#5;
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check_result(a,b,res);
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a = 1; b = 1;
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#5;
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check_result(a,b,res);
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a = 3; b = 4;
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#5;
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check_result(a,b,res);
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for(i = 0; i < 100; i=i+1) begin
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a = $random()&32'hff; b = $random()&32'hff;
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#5;
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check_result(a,b,res);
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end
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$display("Test has been finished with %d errors", err_count);
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if(err_count == 0) begin
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$display("SUCCESS!");
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end
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$finish();
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end
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endmodule
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