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-- Inference in synthesis.
-- Copyright (C) 2017 Tristan Gingold
--
-- This file is part of GHDL.
--
-- This program is free software; you can redistribute it and/or modify
-- it 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., 51 Franklin Street - Fifth Floor, Boston,
-- MA 02110-1301, USA.
with Types; use Types;
with Netlists; use Netlists;
with Netlists.Builders; use Netlists.Builders;
with Synth.Environment; use Synth.Environment;
with Synth.Source;
package Synth.Inference is
-- To be called when there is an assignment to a signal/output of VAL and
-- the previous value is PREV_VAL (an Id_Signal or Id_Output).
-- If there is a loop, infere a dff or a latch or emit an error.
procedure Infere (Ctxt : Context_Acc;
Wid : Wire_Id;
Val : Net;
Off : Uns32;
Prev_Val : Net;
Stmt : Source.Syn_Src);
end Synth.Inference;
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