| // DESCRIPTION: Verilator: Verilog Test module |
| // |
| // This file ONLY is placed into the Public Domain, for any use, |
| // without warranty, 2013 by Ed Lander. |
| |
| // verilator lint_off WIDTH |
| |
| `define checkh(gotv,expv) do if ((gotv) !== (expv)) begin $write("%%Error: %s:%0d: got='h%x exp='h%x\n", `__FILE__,`__LINE__, (gotv), (expv)); $stop; end while(0); |
| |
| module t (/*AUTOARG*/ |
| // Inputs |
| clk |
| ); |
| input clk; |
| reg [7:0] p1; |
| reg [7:0] p2; |
| reg [7:0] p3; |
| |
| initial begin |
| p1 = 8'h01; |
| p2 = 8'h02; |
| p3 = 8'h03; |
| end |
| |
| parameter int param1 = 8'h11; |
| parameter int param2 = 8'h12; |
| parameter int param3 = 8'h13; |
| |
| targetmod i_targetmod (/*AUTOINST*/ |
| // Inputs |
| .clk (clk)); |
| |
| //Binding i_targetmod to mycheck --instantiates i_mycheck inside i_targetmod |
| //param1 not over-riden (as mycheck) (=> 0x31) |
| //param2 explicitly bound to targetmod value (=> 0x22) |
| //param3 explicitly bound to top value (=> 0x13) |
| //p1 implictly bound (.*), takes value from targetmod (=> 0x04) |
| //p2 explictly bound to targetmod (=> 0x05) |
| //p3 explictly bound to top (=> 0x03) |
| |
| // Alternative unsupported form is i_targetmod |
| bind targetmod mycheck |
| #( |
| .param2(param2), |
| .param3(param3) |
| ) |
| i_mycheck (.p2(p2), .p3(p3), .*); |
| |
| endmodule |
| |
| module targetmod (input clk); |
| reg [7:0] p1; |
| reg [7:0] p2; |
| reg [7:0] p3; |
| |
| parameter int param1 = 8'h21; |
| parameter int param2 = 8'h22; |
| parameter int param3 = 8'h23; |
| |
| initial begin |
| p1 = 8'h04; |
| p2 = 8'h05; |
| p3 = 8'h06; |
| end |
| endmodule |
| |
| module mycheck (/*AUTOARG*/ |
| // Inputs |
| clk, p1, p2, p3 |
| ); |
| |
| input clk; |
| input [7:0] p1; |
| input [7:0] p2; |
| input [7:0] p3; |
| |
| parameter int param1 = 8'h31; |
| parameter int param2 = 8'h32; |
| parameter int param3 = 8'h33; |
| |
| always @ (posedge clk) begin |
| `checkh(param1,8'h31); |
| `checkh(param2,8'h22); |
| `checkh(param3,8'h23); |
| `checkh(p1,8'h04); |
| `checkh(p2,8'h05); |
| `checkh(p3,8'h06); |
| $write("*-* All Finished *-*\n"); |
| $finish; |
| end |
| endmodule |