8bitworkshop/test/cli/verilog/t_param_repl.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2005 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0

module t (/*AUTOARG*/
   // Inputs
   clk
   );
   input clk;

   parameter [31:0]	TWENTY4 = 24;
   parameter [31:0]	PA = TWENTY4/8;
   parameter [1:0]	VALUE = 2'b10;
   parameter [5:0]	REPL = {PA{VALUE}};
   parameter [7:0]	CONC = {REPL,VALUE};

   parameter 		DBITS = 32;
   parameter 		INIT_BYTE = 8'h1F;
   parameter 		DWORDS_LOG2 = 7;
   parameter 		DWORDS = (1<<DWORDS_LOG2);
   parameter 		DBYTES=DBITS/8;
   // verilator lint_off LITENDIAN
   reg [DBITS-1:0] mem [0:DWORDS-1];
   // verilator lint_on LITENDIAN

   integer 	     i;

   integer cyc=1;
   always @ (posedge clk) begin
      cyc <= cyc + 1;
      if (cyc==1) begin
	 if (REPL != {2'b10,2'b10,2'b10}) $stop;
	 if (CONC != {2'b10,2'b10,2'b10,2'b10}) $stop;
      end
      if (cyc==2) begin
	 for (i = 0; i < DWORDS; i = i + 1)
	   mem[i] = {DBYTES{INIT_BYTE}};
      end
      if (cyc==3) begin
	 for (i = 0; i < DWORDS; i = i + 1)
	   if (mem[i] != {DBYTES{INIT_BYTE}}) $stop;
      end
      if (cyc==9) begin
	 $write("*-* All Finished *-*\n");
	 $finish;
      end
   end

endmodule