// DESCRIPTION: Verilator: SystemVerilog interface test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2020 Thierry Tambe
// SPDX-License-Identifier: CC0-1.0

module t (
    input logic clk,
    output logic HRESETn
);

  int primsig[3];

  ahb_slave_intf iinst[3] (primsig[2:0]);

  sub sub01[2] (
      .clk,
      .infc(iinst[0:1])
  );
  sub sub2 (
      .clk,
      .infc(iinst[2])
  );

  initial begin
    primsig[0] = 30;
    primsig[1] = 31;
    primsig[2] = 32;
    iinst[0].data = 10;
    iinst[1].data = 11;
    iinst[2].data = 12;
  end

  int cyc = 0;
  always @(posedge clk) begin
    cyc <= cyc + 1;
    if (cyc == 10) begin
      if (iinst[0].primsig != 30) $stop;
      if (iinst[1].primsig != 31) $stop;
      if (iinst[2].primsig != 32) $stop;
      if (iinst[0].data != 10) $stop;
      if (iinst[1].data != 11) $stop;
      if (iinst[2].data != 12) $stop;
      if (sub01[0].internal != 10) $stop;
      if (sub01[1].internal != 11) $stop;
      if (sub2.internal != 12) $stop;
      $write("*-* All Finished *-*\n");
      $finish;
    end
  end
endmodule

module sub (
    input logic clk,
    ahb_slave_intf infc
);

  int internal;

  always_comb internal = infc.data;

endmodule

interface ahb_slave_intf (
    input int primsig
);

  int data;

endinterface