ЛР11. Добавление тестбенча

Labs/11. Interrupt integration/tb_irq_unit.sv

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+//////////////////////////////////////////////////////////////////////////////////
+// Company: MIET
+// Engineer: Andrei Solodovnikov
+//
+// Create Date:
+// Design Name:
+// Module Name:    tb_riscv_unit
+// Project Name:   RISCV_practicum
+// Target Devices: Nexys A7-100T
+// Tool Versions:
+// Description: tb for riscv unit with irq support
+//
+// Dependencies:
+//
+// Revision:
+// Revision 0.01 - File Created
+// Additional Comments:
+//
+//////////////////////////////////////////////////////////////////////////////////
+
+module tb_irq_unit();
+
+    reg clk;
+    reg rst;
+
+    riscv_unit unit(
+    .clk_i(clk),
+    .rst_i(rst)
+    );
+
+    initial clk = 0;
+    always #10 clk = ~clk;
+    initial begin
+        $display( "\nStart test: \n\n==========================\nCLICK THE BUTTON 'Run All'\n==========================\n"); $stop();
+        unit.irq_req = 0;
+        rst = 1;
+        #20;
+        rst = 0;
+        repeat(20)@(posedge clk);
+        unit.irq_req = 1;
+        while(unit.irq_ret == 0) begin
+          @(posedge clk);
+        end
+        unit.irq_req = 0;
+        $display("\n The test is over \n See the internal signals of the module on the waveform \n");
+        $finish;
+    end
+
+endmodule