// DESCRIPTION: Verilator: Verilog Test module // // This file ONLY is placed under the Creative Commons Public Domain, for // any use, without warranty, 2003 by Wilson Snyder. // SPDX-License-Identifier: CC0-1.0 module t (/*AUTOARG*/ // Inputs clk ); input clk; // verilator lint_off GENCLK reg [7:0] cyc; initial cyc=0; reg genclk; // verilator lint_off MULTIDRIVEN reg [7:0] set_both; // verilator lint_on MULTIDRIVEN wire genthiscyc = ( (cyc % 2) == 1 ); always @ (posedge clk) begin cyc <= cyc + 8'h1; genclk <= genthiscyc; set_both <= cyc; $write ("SB set_both %x <= cyc %x\n", set_both, cyc); if (genthiscyc) begin if (cyc>1 && set_both != (cyc - 8'h1)) $stop; end else begin if (cyc>1 && set_both != ~(cyc - 8'h1)) $stop; end if (cyc==10) begin $write("*-* All Finished *-*\n"); $finish; end end always @ (posedge genclk) begin set_both <= ~ set_both; $write ("SB set_both %x <= cyc %x\n", set_both, ~cyc); if (cyc>1 && set_both != (cyc - 8'h1)) $stop; end endmodule