verilator/test_regress/t/t_class_param_extends.v
2022-08-28 10:24:55 -04:00

53 lines
1.3 KiB
Systemverilog

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2022 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0
// Code your testbench here
// or browse Examples
class Base #(parameter PBASE = 12);
bit [PBASE-1:0] member;
function bit [PBASE-1:0] get_member;
return member;
endfunction
function int get_p;
return PBASE;
endfunction
endclass
class Cls #(parameter P = 13) extends Base #(P);
endclass
typedef Cls#(8) Cls8_t;
// See also t_class_param_mod.v
module t (/*AUTOARG*/);
Cls #(.P(4)) c4;
Cls8_t c8;
initial begin
c4 = new;
c8 = new;
if (c4.PBASE != 4) $stop;
if (c8.PBASE != 8) $stop;
if (c4.get_p() != 4) $stop;
if (c8.get_p() != 8) $stop;
// verilator lint_off WIDTH
c4.member = 32'haaaaaaaa;
c8.member = 32'haaaaaaaa;
// verilator lint_on WIDTH
if (c4.member != 4'ha) $stop;
if (c4.get_member() != 4'ha) $stop;
if (c8.member != 8'haa) $stop;
if (c8.get_member() != 8'haa) $stop;
$display("c4 = %s", $sformatf("%p", c4));
if ($sformatf("%p", c4) != "'{member:'ha}") $stop;
$write("*-* All Finished *-*\n");
$finish;
end
endmodule