iverilog/ivtest/vpi/pokereg.v

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// Copyright (c) 2002 Michael Ruff (mruff at chiaro.com)
// Michael Runyan (mrunyan at chiaro.com)
//
// This source code is free software; you can redistribute it
// and/or modify it in source code form under the terms of the GNU
// General Public License as published by the Free Software
// Foundation; either version 2 of the License, or (at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
//
module test;
reg [7:0] r_poke_1, r_poke_2, r_poke_3, r_poke_4, r_poke_5;
reg [7:0] r_peek_1, r_peek_2, r_peek_3, r_peek_4, r_peek_5;
task f_copy;
begin
// twizzle copy
r_peek_1 = r_poke_2;
r_peek_2 = r_poke_3;
r_peek_3 = r_poke_4;
r_peek_4 = r_poke_5;
r_peek_5 = r_poke_1;
end
endtask
task f_dump;
integer i;
begin
$display("Verilog compare r_poke <=> r_peek");
$display (" 'b_%b <=> 'b_%b%s",
r_poke_1, r_peek_5, r_poke_1 !== r_peek_5 ? " - ERROR" : "");
$display (" 'b_%b <=> 'b_%b%s",
r_poke_2, r_peek_1, r_poke_2 !== r_peek_1 ? " - ERROR" : "");
$display (" 'b_%b <=> 'b_%b%s",
r_poke_3, r_peek_2, r_poke_3 !== r_peek_2 ? " - ERROR" : "");
$display (" 'b_%b <=> 'b_%b%s",
r_poke_4, r_peek_3, r_poke_4 !== r_peek_3 ? " - ERROR" : "");
$display (" 'b_%b <=> 'b_%b%s",
r_poke_5, r_peek_4, r_poke_5 !== r_peek_4 ? " - ERROR" : "");
end
endtask
initial begin
#0;
$regpoke;
#10;
f_copy;
#10;
$regpeek;
#10;
f_dump;
end
endmodule