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-- Extract memories.
-- Copyright (C) 2019 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, see <gnu.org/licenses>.
with Netlists.Builders; use Netlists.Builders;
package Netlists.Memories is
-- True iff a RAM can be infered from VAL (the input of an assignment).
-- TODO: handle partial write (offset)
-- TODO: directly check with assignment target.
function Can_Infere_RAM (Val : Net; Prev_Val : Net) return Boolean;
-- Pre-transform VAL to a RAM: try to merge Mux2 into the dyn_insert.
function Infere_RAM
(Ctxt : Context_Acc; Val : Net; Tail : Net; Clk : Net; En : Net)
return Net;
-- Try to convert dyn_insert/dyn_extract to memory ports.
procedure Extract_Memories (Ctxt : Context_Acc; M : Module);
-- Count the number of memidx in a memory address.
function Count_Memidx (Addr : Net) return Natural;
end Netlists.Memories;
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