From: Dan Ravensloft <dan.ravensloft@gmail.com>
Date: Sat, 4 Jul 2020 18:39:40 +0000 (+0100)
Subject: gowin: replace determine_init with setundef
X-Git-Tag: working-ls180~415
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=01772dec8c13fb331df439319f4619b6292d6409;p=yosys.git

gowin: replace determine_init with setundef
---

diff --git a/techlibs/gowin/Makefile.inc b/techlibs/gowin/Makefile.inc
index 0756e3bcf..e6a6be970 100644
--- a/techlibs/gowin/Makefile.inc
+++ b/techlibs/gowin/Makefile.inc
@@ -1,6 +1,5 @@
 
 OBJS += techlibs/gowin/synth_gowin.o
-OBJS += techlibs/gowin/determine_init.o
 
 GENFILES += techlibs/gowin/bram_init_16.vh
 
diff --git a/techlibs/gowin/determine_init.cc b/techlibs/gowin/determine_init.cc
deleted file mode 100644
index 15ff115de..000000000
--- a/techlibs/gowin/determine_init.cc
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- *  yosys -- Yosys Open SYnthesis Suite
- *
- *  Copyright (C) 2018 Icenowy Zheng <icenowy@aosc.io>
- *
- *  Permission to use, copy, modify, and/or distribute this software for any
- *  purpose with or without fee is hereby granted, provided that the above
- *  copyright notice and this permission notice appear in all copies.
- *
- *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- */
-
-#include "kernel/yosys.h"
-#include "kernel/sigtools.h"
-
-USING_YOSYS_NAMESPACE
-PRIVATE_NAMESPACE_BEGIN
-
-struct DetermineInitPass : public Pass {
-	DetermineInitPass() : Pass("determine_init", "Determine the init value of cells") { }
-	void help() override
-	{
-		log("\n");
-		log("    determine_init [selection]\n");
-		log("\n");
-		log("Determine the init value of cells that doesn't allow unknown init value.\n");
-		log("\n");
-	}
-
-	Const determine_init(Const init)
-	{
-		for (int i = 0; i < GetSize(init); i++) {
-			if (init[i] != State::S0 && init[i] != State::S1)
-				init[i] = State::S0;
-		}
-
-		return init;
-	}
-
-	void execute(std::vector<std::string> args, RTLIL::Design *design) override
-	{
-		log_header(design, "Executing DETERMINE_INIT pass (determine init value for cells).\n");
-
-		extra_args(args, args.size(), design);
-
-		int cnt = 0;
-		for (auto module : design->selected_modules())
-		{
-			for (auto cell : module->selected_cells())
-			{
-				if (cell->type == ID(RAM16S4))
-				{
-					cell->setParam(ID(INIT_0), determine_init(cell->getParam(ID(INIT_0))));
-					cell->setParam(ID(INIT_1), determine_init(cell->getParam(ID(INIT_1))));
-					cell->setParam(ID(INIT_2), determine_init(cell->getParam(ID(INIT_2))));
-					cell->setParam(ID(INIT_3), determine_init(cell->getParam(ID(INIT_3))));
-					cnt++;
-				}
-			}
-		}
-		log_header(design, "Updated %d cells with determined init value.\n", cnt);
-	}
-} DetermineInitPass;
-
-PRIVATE_NAMESPACE_END
diff --git a/techlibs/gowin/synth_gowin.cc b/techlibs/gowin/synth_gowin.cc
index 32d9cc0a5..1e82e1ed6 100644
--- a/techlibs/gowin/synth_gowin.cc
+++ b/techlibs/gowin/synth_gowin.cc
@@ -198,7 +198,7 @@ struct SynthGowinPass : public ScriptPass
 		{
 			run("memory_bram -rules +/gowin/lutrams.txt");
 			run("techmap -map +/gowin/lutrams_map.v");
-			run("determine_init");
+			run("setundef -params -zero t:RAM16S4");
 		}
 
 		if (check_label("map_ffram"))