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-- API to build a netlist.
-- 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 Netlists.Gates; use Netlists.Gates;
package Netlists.Builders is
type Context is private;
type Context_Acc is access Context;
function New_Internal_Name (Ctxt : Context_Acc) return Sname;
-- Create a builder for Design. Must be called once.
function Build_Builders (Design : Module) return Context_Acc;
-- Set the parent for the new instances.
procedure Set_Parent (Ctxt : Context_Acc; Parent : Module);
function Build_Dyadic (Ctxt : Context_Acc;
Id : Dyadic_Module_Id;
L, R : Net) return Net;
function Build_Monadic (Ctxt : Context_Acc;
Id : Monadic_Module_Id;
Op : Net) return Net;
function Build_Compare (Ctxt : Context_Acc;
Id : Compare_Module_Id;
L, R : Net) return Net;
function Build_Reduce (Ctxt : Context_Acc;
Id : Reduce_Module_Id;
Op : Net) return Net;
function Build_Const_Z (Ctxt : Context_Acc;
W : Width) return Net;
function Build_Const_UB32 (Ctxt : Context_Acc;
Val : Uns32;
W : Width) return Net;
function Build_Const_UL32 (Ctxt : Context_Acc;
Val : Uns32;
Xz : Uns32;
W : Width) return Net;
function Build_Edge (Ctxt : Context_Acc; Src : Net) return Net;
function Build_Mux2 (Ctxt : Context_Acc;
Sel : Net;
I0, I1 : Net) return Net;
function Build_Mux4 (Ctxt : Context_Acc;
Sel : Net;
I0, I1, I2, I3 : Net) return Net;
-- Build: I0 & I1 [ & I2 [ & I3 ]]
function Build_Concat2 (Ctxt : Context_Acc; I0, I1 : Net) return Net;
function Build_Concat3 (Ctxt : Context_Acc; I0, I1, I2 : Net) return Net;
function Build_Concat4 (Ctxt : Context_Acc; I0, I1, I2, I3 : Net)
return Net;
-- NBR_INPUTS is the number of inputs ports, W is the width of the
-- output.
function Build_Concatn (Ctxt : Context_Acc; W : Width; Nbr_Inputs : Uns32)
return Net;
function Build_Trunc
(Ctxt : Context_Acc; Id : Module_Id; I : Net; W : Width) return Net;
function Build_Extend
(Ctxt : Context_Acc; Id : Module_Id; I : Net; W : Width) return Net;
function Build_Extract
(Ctxt : Context_Acc; I : Net; Off, W : Width) return Net;
function Build_Extract_Bit
(Ctxt : Context_Acc; I : Net; Off : Width) return Net;
function Build_Dyn_Extract
(Ctxt : Context_Acc;
I : Net; P : Net; Step : Uns32; Off : Int32; W : Width) return Net;
function Build_Insert
(Ctxt : Context_Acc; I : Net; V : Net; Off : Width) return Net;
function Build_Dyn_Insert
(Ctxt : Context_Acc; I : Net; V : Net; P : Net; Step : Uns32; Off : Int32)
return Net;
function Build_Output (Ctxt : Context_Acc; W : Width) return Net;
function Build_Signal (Ctxt : Context_Acc; Name : Sname; W : Width)
return Net;
function Build_Isignal (Ctxt : Context_Acc; Name : Sname; Init : Net)
return Net;
function Build_Port (Ctxt : Context_Acc; N : Net) return Net;
procedure Build_Assert (Ctxt : Context_Acc; Cond : Net);
procedure Build_Assume (Ctxt : Context_Acc; Cond : Net);
-- A simple flip-flop.
function Build_Dff (Ctxt : Context_Acc;
Clk : Net;
D : Net) return Net;
-- A flip-flop with an initial value (only for fpga)
-- The width is derived from INIT and D can be No_Net.
function Build_Idff (Ctxt : Context_Acc;
Clk : Net;
D : Net;
Init : Net) return Net;
function Build_Adff (Ctxt : Context_Acc;
Clk : Net;
D : Net; Rst : Net; Rst_Val : Net) return Net;
function Build_Iadff (Ctxt : Context_Acc;
Clk : Net;
D : Net; Rst : Net; Rst_Val : Net;
Init : Net) return Net;
private
type Module_Arr is array (Module_Id range <>) of Module;
type Context is record
Design : Module;
Parent : Module;
Num : Uns32;
M_Dyadic : Module_Arr (Dyadic_Module_Id);
M_Monadic : Module_Arr (Monadic_Module_Id);
M_Compare : Module_Arr (Compare_Module_Id);
M_Concat : Module_Arr (Concat_Module_Id);
M_Concatn : Module;
M_Const_UB32 : Module;
M_Const_UL32 : Module;
M_Const_Z : Module;
M_Edge : Module;
M_Mux2 : Module;
M_Mux4 : Module;
M_Output : Module;
M_Signal : Module;
M_Isignal : Module;
M_Port : Module;
M_Dff : Module;
M_Idff : Module;
M_Adff : Module;
M_Iadff : Module;
M_Truncate : Module_Arr (Truncate_Module_Id);
M_Extend : Module_Arr (Extend_Module_Id);
M_Reduce : Module_Arr (Reduce_Module_Id);
M_Extract : Module;
M_Insert : Module;
M_Dyn_Extract : Module;
M_Dyn_Insert : Module;
M_Assert : Module;
M_Assume : Module;
end record;
end Netlists.Builders;
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