142 lines
3.6 KiB
Verilog
142 lines
3.6 KiB
Verilog
// DESCRIPTION: Verilator: Interface parameter getter
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//
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// A test of the import parameter used with modport
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//
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// This file ONLY is placed into the Public Domain, for any use,
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// without warranty, 2015 by Todd Strader
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// SPDX-License-Identifier: CC0-1.0
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interface test_if #(parameter integer FOO = 1);
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// Interface variable
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logic data;
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localparam integer BAR = FOO + 1;
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// Modport
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modport mp(
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import getFoo,
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output data
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);
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function integer getFoo ();
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return FOO;
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endfunction
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endinterface // test_if
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function integer identity (input integer x);
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return x;
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endfunction
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module t (/*AUTOARG*/
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// Inputs
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clk
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);
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input clk;
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test_if #( .FOO (identity(5)) ) the_interface ();
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test_if #( .FOO (identity(7)) ) array_interface [1:0] ();
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testmod testmod_i (.clk (clk),
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.intf (the_interface),
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.intf_no_mp (the_interface),
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.intf_array (array_interface)
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);
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localparam THE_TOP_FOO = the_interface.FOO;
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localparam THE_TOP_FOO_BITS = $bits({the_interface.FOO, the_interface.FOO});
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localparam THE_ARRAY_FOO = array_interface[0].FOO;
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initial begin
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if (THE_TOP_FOO != 5) begin
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$display("%%Error: THE_TOP_FOO = %0d", THE_TOP_FOO);
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$stop;
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end
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if (THE_TOP_FOO_BITS != 64) begin
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$display("%%Error: THE_TOP_FOO_BITS = %0d", THE_TOP_FOO_BITS);
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$stop;
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end
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if (THE_ARRAY_FOO != 7) begin
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$display("%%Error: THE_ARRAY_FOO = %0d", THE_ARRAY_FOO);
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$stop;
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end
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end
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endmodule
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module testmod
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(
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input clk,
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test_if.mp intf,
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test_if intf_no_mp,
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test_if.mp intf_array [1:0]
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);
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localparam THE_FOO = intf.FOO;
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localparam THE_OTHER_FOO = intf_no_mp.FOO;
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localparam THE_ARRAY_FOO = intf_array[0].FOO;
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localparam THE_BAR = intf.BAR;
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localparam THE_OTHER_BAR = intf_no_mp.BAR;
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localparam THE_ARRAY_BAR = intf_array[0].BAR;
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always @(posedge clk) begin
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if (THE_FOO != 5) begin
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$display("%%Error: THE_FOO = %0d", THE_FOO);
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$stop;
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end
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if (THE_OTHER_FOO != 5) begin
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$display("%%Error: THE_OTHER_FOO = %0d", THE_OTHER_FOO);
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$stop;
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end
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if (THE_ARRAY_FOO != 7) begin
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$display("%%Error: THE_ARRAY_FOO = %0d", THE_ARRAY_FOO);
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$stop;
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end
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if (intf.FOO != 5) begin
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$display("%%Error: intf.FOO = %0d", intf.FOO);
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$stop;
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end
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if (intf_no_mp.FOO != 5) begin
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$display("%%Error: intf_no_mp.FOO = %0d", intf_no_mp.FOO);
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$stop;
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end
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if (intf_array[0].FOO != 7) begin
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$display("%%Error: intf_array[0].FOO = %0d", intf_array[0].FOO);
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$stop;
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end
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// if (i.getFoo() != 5) begin
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// $display("%%Error: i.getFoo() = %0d", i.getFoo());
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// $stop;
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// end
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if (THE_BAR != 6) begin
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$display("%%Error: THE_BAR = %0d", THE_BAR);
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$stop;
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end
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if (THE_OTHER_BAR != 6) begin
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$display("%%Error: THE_OTHER_BAR = %0d", THE_OTHER_BAR);
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$stop;
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end
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if (THE_ARRAY_BAR != 8) begin
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$display("%%Error: THE_ARRAY_BAR = %0d", THE_ARRAY_BAR);
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$stop;
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end
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if (intf.BAR != 6) begin
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$display("%%Error: intf.BAR = %0d", intf.BAR);
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$stop;
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end
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if (intf_no_mp.BAR != 6) begin
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$display("%%Error: intf_no_mp.BAR = %0d", intf_no_mp.BAR);
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$stop;
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end
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if (intf_array[0].BAR != 8) begin
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$display("%%Error: intf_array[0].BAR = %0d", intf_array[0].BAR);
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$stop;
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end
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$write("*-* All Finished *-*\n");
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$finish;
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end
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endmodule
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