From bc10b035f5998d1cc9ec2aa0122ee1c24099ca05 Mon Sep 17 00:00:00 2001 From: Tristan Gingold Date: Mon, 30 Jan 2017 21:09:19 +0100 Subject: Add netlist generation infrastructure. --- src/synth/synth-expr.ads | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 src/synth/synth-expr.ads (limited to 'src/synth/synth-expr.ads') diff --git a/src/synth/synth-expr.ads b/src/synth/synth-expr.ads new file mode 100644 index 000000000..3180b3afd --- /dev/null +++ b/src/synth/synth-expr.ads @@ -0,0 +1,42 @@ +-- Expressions 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 Iir_Values; use Iir_Values; +with Synth.Values; use Synth.Values; +with Iirs; use Iirs; + +package Synth.Expr is + function Is_Const (Val : Value_Acc) return Boolean; + function Get_Width (Val : Value_Acc) return Uns32; + + procedure To_Logic (Lit : Iir_Value_Literal_Acc; + Val : out Uns32; + Xz : out Uns32); + + function Bit_Extract (Val : Value_Acc; Off : Uns32) return Value_Acc; + + function Synth_Expression_With_Type + (Syn_Inst : Synth_Instance_Acc; Expr : Iir; Expr_Type : Iir) + return Value_Acc; + + function Synth_Expression (Syn_Inst : Synth_Instance_Acc; Expr : Iir) + return Value_Acc; +end Synth.Expr; -- cgit v1.2.3