| // DESCRIPTION: Verilator: Verilog Test module |
| // |
| // This file ONLY is placed into the Public Domain, for any use, |
| // without warranty, 2013 by Wilson Snyder. |
| |
| // bug789 generates |
| |
| module t (/*AUTOARG*/ |
| // Inputs |
| clk |
| ); |
| |
| input clk; |
| integer cyc=1; |
| |
| ifc #(1) itopa(); |
| ifc #(2) itopb(); |
| |
| sub #(1) ca (.isub(itopa), |
| .i_value(4)); |
| sub #(2) cb (.isub(itopb), |
| .i_value(5)); |
| |
| always @ (posedge clk) begin |
| cyc <= cyc + 1; |
| if (cyc==1) begin |
| if (itopa.MODE != 1) $stop; |
| if (itopb.MODE != 2) $stop; |
| end |
| if (cyc==20) begin |
| if (itopa.i != 4) $stop; |
| if (itopb.i != 5) $stop; |
| $write("*-* All Finished *-*\n"); |
| $finish; |
| end |
| end |
| endmodule |
| |
| module sub |
| #(parameter MODE = 0) |
| ( |
| ifc isub, |
| input integer i_value |
| ); |
| |
| // Commercial unsupported Xmrs into scopes within interfaces |
| generate |
| always_comb isub.i = i_value; |
| endgenerate |
| endmodule |
| |
| interface ifc; |
| parameter MODE = 0; |
| // Commercial unsupported Xmrs into scopes within interfaces |
| generate |
| integer i; |
| endgenerate |
| endinterface |