// DESCRIPTION: Verilator: Verilog Test module // // This file ONLY is placed under the Creative Commons Public Domain, for // any use, without warranty, 2023 by Wilson Snyder. // SPDX-License-Identifier: CC0-1.0 `define stop $stop `define checkd(gotv,expv) do if ((gotv) !== (expv)) begin $write("%%Error: %s:%0d: got=%0d exp=%0d\n", `__FILE__,`__LINE__, (gotv), (expv)); `stop; end while(0); typedef struct { logic clk1; logic clk2; logic rst; } clks_t; module t(/*AUTOARG*/ // Inputs clk, fastclk ); input clk; input fastclk; int cyc = 0; clks_t clks; always_comb begin clks.clk1 = clk; clks.clk2 = fastclk; end // verilator lint_off MULTIDRIVEN int cyc1 = 0; int cyc2 = 0; always @ (negedge clks.clk1) cyc1 <= cyc1 + 1; always @ (negedge clks.clk2) cyc2 <= cyc2 + 1; always @ (posedge clk) begin cyc <= cyc + 1; if (cyc < 10) begin cyc1 <= '0; cyc2 <= '0; end else if (cyc == 99) begin `checkd(cyc1, 90); `checkd(cyc2, 90*5); $write("*-* All Finished *-*\n"); $finish; end end endmodule